Brands

<h2 data-section-id="17lohz5" data-start="0" data-end="48">What Are Externally Threaded Cryogenic Vials?</h2>
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Externally threaded cryogenic vials have the screw thread on the outside of the vial neck, with a cap that covers the entire top portion of the vial when closed. Manufactured from cryogenic-grade virgin polypropylene, these vials are designed to withstand temperatures from &minus;196&deg;C to +121&deg;C and are commonly used for long-term storage of cell lines, serum, blood, DNA, RNA, bacterial cultures, and other biological samples. Available in volumes ranging from 1.2 mL to 5 mL, they are offered in both self-standing and round-bottom formats. Unlike internally threaded vials, external-thread designs use an integrated sealing system rather than a separate O-ring, helping reduce handling issues. For automated decapping systems, high-throughput biobanking, and SBS-format robotic workflows, externally threaded vials are the preferred format.
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<h2 dir="ltr">MBP Offers:</h2>
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2D Barcoded Cryogenic Vials for automated tracking
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SBS Format Cryo Racks for robotic integration
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3D Barcoded Storage Vials for digital inventory
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Color-coded Cap Inserts for rapid identification
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Self-standing Star-foot Cryo Vials
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Silicone O-ring Sealed Leak-proof Containers
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Gamma-sterilized Aseptic Storage Tubes
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</ul>
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<h2 data-section-id="px7lzo" data-start="891" data-end="943">How to Choose Externally Threaded Cryogenic Vials</h2>
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Volume
The 2 mL externally threaded vial is the industry standard for cell banking, serum aliquots, and general biospecimen storage. It fits standard 81-well cryo boxes and is suitable for most laboratory applications. Smaller 1.2&ndash;1.5 mL vials are ideal for high-density storage where space efficiency is important, while larger 3&ndash;5 mL formats are commonly used for tissue samples, bacterial glycerol stocks, and larger-volume specimens.
Base Style: Self-Standing vs. Round Bottom
Self-standing vials feature a star-foot or conical base that allows them to stand upright on laboratory benches without requiring a rack, reducing the risk of spills during handling. Round-bottom vials require rack support but often offer broader compatibility with different storage racks and cryo box configurations.
Barcoding: Plain vs. 2D Barcoded
Standard externally threaded vials include a writable surface for manual labeling and are suitable for small to medium-sized sample collections. For large biobanks and automated sample management systems, 2D barcoded vials provide Data Matrix codes that can be scanned directly into Laboratory Information Management Systems (LIMS), improving traceability and reducing manual data entry errors.
Sterility and Purity
Cryogenic vials intended for cell culture, molecular biology, and clinical research should be gamma sterilized and certified RNase-free, DNase-free, non-pyrogenic, and endotoxin-free. These certifications help protect sample integrity and reduce contamination risks during long-term storage.
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<h2 data-section-id="1jl751w" data-start="3061" data-end="3086">Specifications Context</h2>
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Externally threaded polypropylene cryogenic vials are designed for vapor-phase liquid nitrogen storage and ultra-low temperature freezers. The standard outer diameter of a 2 mL vial is approximately 12.5 mm, making it compatible with most 81-well cryo box formats. Modern external-thread designs use integrated thermoplastic elastomer sealing systems that eliminate the need for separate O-rings, reducing the possibility of seal misalignment or loss during routine handling. As of 2026, externally threaded 2 mL vials with SBS-compatible footprints and 2D barcodes are widely used in large-scale biobanking and sample repository applications.
Your research is priceless. Your storage should be equally reliable. <a href="https://mbpinc.net/contact-us" style="color: #236fa1; text-decoration: underline;">Connect with Molecular Biology Products Inc.</a> for a personalized quote.

Externally Threaded Cryogenic Vials

Biologix Cryogenic Vials (Without Side Barcode)

2.0ml External Thread Side-Coded Cryogenic Vials S Series

CRYOKING 2.0ML CLEAR POLYPROPYLENE STERILE CRYOVIALS WITH EXTERNAL THREAD AND WHITE CAPS ASSEMBLED.  CRYOVIALS HAVE WRITING PATCH AND MARKED GRADUATIONS. 25 CRYOVIALS/BAG, 20 BAGS/PACK, 2 PACKS/CASE, WITH SIDE CODE

CRYOKING 2.0 ML VIAL, CLEAR POLYPROPYLENE STERILE CRYOVIALS WITH EXTERNAL THREAD AND RED CAPS ASSEMBLED , WITH SIDE BARCODE, PP, NO O-RING, 25 PIECES/BAG, 20 BAGS/PACK, 2 PACKS/CASE

CRYOKING 2.0 ML VIAL, CLEAR POLYPROPYLENE STERILE CRYOVIALS WITH EXTERNAL THREAD AND GREEN CAPS ASSEMBLED , WITH SIDE BARCODE, PP, NO O-RING, 25 PIECES/BAG, 20 BAGS/PACK, 2 PACKS/CASE

CRYOKING 2.0 ML VIAL, CLEAR POLYPROPYLENE STERILE CRYOVIALS WITH EXTERNAL THREAD AND BLUE CAPS ASSEMBLED , WITH SIDE BARCODE, PP, NO O-RING, 25 PIECES/BAG, 20 BAGS/PACK, 2 PACKS/CASE

CRYOKING 2.0 ML VIAL, CLEAR POLYPROPYLENE STERILE CRYOVIALS WITH EXTERNAL THREAD AND YELLOW CAPS ASSEMBLED , WITH SIDE BARCODE, PP, NO O-RING, 25 PIECES/BAG, 20 BAGS/PACK, 2 PACKS/CASE

CRYOKING 2.0 ML VIAL, CLEAR POLYPROPYLENE STERILE CRYOVIALS WITH EXTERNAL THREAD AND PUEPLE CAPS ASSEMBLED , WITH SIDE BARCODE, PP, NO O-RING, 25 PIECES/BAG, 20 BAGS/PACK, 2 PACKS/CASE

CRYOKING 2.0 ML VIAL, CLEAR POLYPROPYLENE STERILE CRYOVIALS WITH EXTERNAL THREAD AND CLEAR CAPS ASSEMBLED , WITH SIDE BARCODE, PP, NO O-RING, 25 PIECES/BAG, 20 BAGS/PACK, 2 PACKS/CASE

Centrifuge Tubes

<h2>What Are Centrifuge Tubes?</h2>
 Centrifuge tubes are cylindrical laboratory containers with caps that are used to separate, pellet, and store biological or chemical samples through centrifugal force. They are commonly made from polypropylene (PP) or polystyrene (PS) and are available in sizes ranging from small 0.5 mL microtubes to larger 50 mL conical tubes. These tubes are widely used for cell pelleting, protein precipitation, DNA and RNA extraction, tissue homogenate clarification, and long-term sample storage. Depending on the material, they can withstand temperatures from &minus;80 &deg;C to +121 &deg;C.
In short, the best centrifuge tube depends on your centrifuge rotor, required g-force, sample volume, and sterility needs. 
<h2>What You Will Find: </h2>
<ul>
<li><a href="https://mbpinc.net/consumables/centrifuge-tubes/all-centrifuge-tubes" title="All Centrifuge Tubes">All Centrifuge Tubes</a>: Comprehensive selection of 15 mL and 50 mL conical tubes with clear graduations for daily lab workflows.</li>
<li><a href="https://mbpinc.net/consumables/centrifuge-tubes/oak-ridge-style-centrifuge-tubes" title="Oak Ridge Style Centrifuge Tubes">Oak Ridge Style Centrifuge Tubes</a>: High-speed, chemical-resistant tubes designed to withstand extreme RCF without deformation.</li>
<li><a href="https://mbpinc.net/consumables/centrifuge-tubes/centrifuge-bottles" title="Centrifuge Bottles">Centrifuge Bottles</a>: Heavy-duty, larger-capacity vessels engineered for bulk sample processing and high-velocity runs.</li>
<li><a href="https://mbpinc.net/consumables/centrifuge-tubes/large-volume-centrifuge-tubes" title="Large Volume Centrifuge Tubes">Large Volume Centrifuge Tubes</a>: Industrial-strength 250 mL and 500 mL tubes optimized for pilot-scale harvesting and bioprocessing.</li>
</ul>
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<h2>How to Choose Centrifuge Tubes</h2>
 Volume and Rotor Compatibility
Select a tube size that matches both your sample volume and centrifuge rotor. Microtubes ranging from 0.5&ndash;2 mL are commonly used in microcentrifuges and can typically handle speeds up to 20,000 &times; g. Midi tubes in the 5&ndash;10 mL range are suitable for intermediate sample volumes, while 15 mL and 50 mL conical tubes are commonly used in clinical, research, and preparative centrifuges.
Material: Polypropylene vs. Polystyrene
Polypropylene (PP) tubes offer excellent chemical resistance and can tolerate temperatures from &minus;80 &deg;C to +121 &deg;C. They are suitable for autoclaving and exposure to many laboratory solvents. Polystyrene (PS) tubes provide superior optical clarity, making it easier to visually inspect samples and liquid levels, but they have lower resistance to solvents and extreme temperatures.
Sterility and Contamination Control
Sterile centrifuge tubes are typically gamma- or E-beam-irradiated and certified free of RNase, DNase, and pyrogens. These tubes are recommended for RNA extraction, cell culture, and clinical applications where contamination must be minimized. Non-sterile tubes may still be RNase- and DNase-free and are often suitable for routine DNA work and general sample storage.
Cap Design
Attached screw caps help prevent cap mix-ups and sample contamination, especially in high-throughput laboratories. Separate caps can be quicker to open and may be preferred in workflows that require frequent access to samples. If tubes will be used with automated systems, cap dimensions should be verified for compatibility with liquid handling equipment.
Packaging Options
Racked tubes provide convenient organization and allow direct pipetting while the tubes remain in the rack. Bulk-bagged tubes offer a more economical option for laboratories that process large volumes of samples and already have tube storage systems in place.
<h2> Comparing Common Centrifuge Tube Types</h2>
 Microtubes (0.5&ndash;2 mL) are ideal for PCR preparation, microcentrifuge applications, and storage of small sample volumes. They can generally withstand centrifugal forces up to 20,000 &times; g.
Midi tubes (5&ndash;10 mL) are designed for intermediate sample volumes such as culture supernatants and can typically tolerate forces up to 16,000 &times; g.
Sterile 15 mL conical tubes are frequently used for cell pelleting, RNA extraction, and clinical sample processing, with typical ratings between 12,000 and 15,000 &times; g.
Sterile 50 mL conical tubes are commonly selected for larger-volume applications including tissue culture work, density gradient preparation, and large-scale sample processing.
Polystyrene conical tubes in 15 mL and 50 mL formats are often chosen when visual sample inspection is important and solvent exposure is minimal.
<h2> Specifications and Features</h2>
 Polypropylene centrifuge tubes from Globe Scientific and Nest Scientific are manufactured from USP Class VI virgin resin and do not contain plasticizers or processing additives. Sterile products are typically irradiated to achieve a sterility assurance level (SAL) of 10⁻⁶. Most 15 mL tubes feature graduation marks at 1 mL intervals, while 50 mL tubes are usually graduated every 5 mL. MBP offers both bagged and racked centrifuge tube formats, including 15 mL and 50 mL conical tubes as well as smaller microtube and midi tube options.
MBP supports procurement departments by accepting purchase orders and offering institutional pricing for qualified high-volume customers. <a href="https://mbpinc.net/contact-us">Contact the MBP team today</a> for a customized quote.

<h2 data-section-id="155qizo" data-start="0" data-end="33">What Are All Centrifuge Tubes?</h2>
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The All Centrifuge Tubes collection includes the complete range of tube sizes commonly used in research, clinical, and laboratory environments. These tubes range from small 0.5 mL and 1.5&ndash;2 mL microtubes used in microcentrifuge applications to 5 mL and 10 mL midi tubes for intermediate sample volumes, as well as 15 mL and 50 mL conical tubes designed for cell culture, density gradient preparation, and larger-volume sample processing. They are available in polypropylene (PP) for enhanced chemical resistance and temperature tolerance or polystyrene (PS) for improved optical clarity.
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What you will find:
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<ul>
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<a href="https://mbpinc.net/consumables/centrifuge-tubes/all-centrifuge-tubes/microcentrifuge-tubes" title="Microcentrifuge Tubes">Microcentrifuge Tubes</a> &ndash; Precision-engineered for small-volume sample preparation.
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<a href="https://mbpinc.net/consumables/centrifuge-tubes/all-centrifuge-tubes/screw-cap-tubes" title="Screw Cap Tubes">Screw Cap Tubes</a> &ndash; Secure, leak-proof closures for long-term storage and transport.
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<a href="https://mbpinc.net/consumables/centrifuge-tubes/all-centrifuge-tubes/15ml-and-50ml-centrifuge-tubes" title="15ml &amp; 50ml Centrifuge Tubes">15ml &amp; 50ml Centrifuge Tubes</a> &ndash; Standard conical bottom tubes for large-volume processing.
</li>
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<a href="https://mbpinc.net/consumables/centrifuge-tubes/all-centrifuge-tubes/midicentrifuge-tubes-5ml-and-10ml" title="Midicentrifuge Tubes (5ml &amp; 10ml)">Midicentrifuge Tubes (5ml &amp; 10ml)</a> &ndash; The perfect bridge for intermediate sample sizes.
</li>
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<a href="https://mbpinc.net/consumables/centrifuge-tubes/all-centrifuge-tubes/microtubes-box" title="Microtubes Box">Microtubes Box</a> &ndash; Durable storage racks for organized sample management and protection.
</li>
</ul>
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<h2 data-section-id="1f93yys" data-start="914" data-end="963">How to Choose From All Centrifuge Tube Formats</h2>
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Volume and Rotor Compatibility
Selecting the correct tube size is essential for safe and efficient centrifugation. Microtubes ranging from 0.5&ndash;2 mL are designed for microcentrifuges, while 5&ndash;10 mL midi tubes fit compatible benchtop centrifuge rotors. Larger 15 mL and 50 mL conical tubes are commonly used in clinical and research centrifuges. Always verify rotor compatibility before introducing a new tube format into your workflow.
Sterility Requirements
For sensitive applications such as RNA extraction, cell culture, and clinical diagnostics, sterile tubes certified free of RNase, DNase, and pyrogens are recommended. Non-sterile tubes can provide a cost-effective solution for routine DNA analysis, protein assays, and general sample storage where sterility is not critical.
Material Selection
Polypropylene tubes offer excellent durability, can be autoclaved at 121 &deg;C, and resist many laboratory chemicals and solvents. Polystyrene tubes provide superior transparency, making it easier to monitor liquid levels and sample contents, although they are less resistant to heat and solvents.
Packaging and Inventory Planning
Microtubes are commonly available in pack sizes ranging from 500 to 1,000 units, while 15 mL and 50 mL conical tubes are often supplied in cases of 500. Laboratories with consistent usage may benefit from establishing recurring purchase orders to ensure uninterrupted supply.
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<h2 data-section-id="urfo3f" data-start="2395" data-end="2433">Compare Centrifuge Tube Size Groups</h2>
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Microtubes (0.5&ndash;2 mL) are primarily used for PCR preparation, microcentrifuge applications, and storage of small sample volumes. These are typically manufactured from polypropylene and are available in pack sizes of 500&ndash;1,000 units.
Midi tubes (5&ndash;10 mL) support intermediate-volume centrifugation and supernatant collection. They are commonly made from polypropylene and supplied in packs ranging from 100&ndash;500 units.
15 mL conical tubes are widely used for cell pelleting, RNA isolation, and clinical sample processing. They are available in both polypropylene and polystyrene formats and are generally packaged in cases of 500.
50 mL conical tubes are designed for larger-volume workflows, including tissue culture, density gradient preparation, and sample processing. Like 15 mL tubes, they are available in polypropylene and polystyrene and are commonly sold in cases of 500.
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<h2 data-section-id="1ezckh3" data-start="3318" data-end="3348">Specifications and Features</h2>
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Globe Scientific and Nest Scientific centrifuge tubes are manufactured from USP Class VI virgin polypropylene or polystyrene resin and are certified free from detectable RNase, DNase, and pyrogens. Sterile products are irradiated using gamma or E-beam methods to achieve a sterility assurance level (SAL) of 10⁻⁶. MBP offers both racked and bagged formats for 15 mL and 50 mL conical tubes, along with dispenser-box options for selected microtube product lines that support efficient use in high-throughput laboratory environments.
For procurement teams, MBP accepts purchase orders and offers institutional pricing for bulk and high-volume purchases. <a href="https://mbpinc.net/contact-ushttps://mbpinc.net/contact-us" title="Contact the MBP team" style="color: #236fa1;">Contact the MBP team</a> today to learn more

All Centrifuge Tubes

<h2 data-section-id="kx7ycn" data-start="0" data-end="39">What Are Screw Cap Centrifuge Tubes?</h2>
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Screw cap centrifuge tubes are polypropylene vessels with a threaded closure that rotates to create a compression seal, typically reinforced by a silicone or polyethylene O-ring. This seal design prevents evaporation, leakage, and contamination under conditions where a snap cap fails, including high-speed centrifugation up to 20,000 &times; g, repeated freeze-thaw cycles from &minus;80 &deg;C to +121 &deg;C, exposure to volatile organic solvents, and long-term cryogenic storage. Available in volumes ranging from 0.5 mL to 2.0 mL, these tubes are commonly used in proteomics, genomics, drug discovery, biobanking, and other applications where maintaining sample integrity is critical throughout multiple processing steps.
Choose screw cap tubes instead of snap-cap tubes when working with volatile samples, repeated freeze-thaw cycles, high centrifugal forces above 16,000 &times; g, or long-term storage at &minus;80 &deg;C.
<h2 dir="ltr">&nbsp;</h2>
<h2 dir="ltr">In this part, you will discover:</h2>
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0.5mL, 1.5mL, 2.0mL (for small to moderate volume applications)
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</ul>
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O-ring caps: Leak-proof, prevents evaporation
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Tubes only: Compatible with existing caps
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</ul>
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Sterile: For sensitive, contamination-prone work
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Non-sterile: Cost-effective for routine use
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<h2 data-section-id="1w7d404" data-start="949" data-end="981">How to Choose Screw Cap Tubes</h2>
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O-Ring vs Non-O-Ring Seal
Screw cap tubes with integrated silicone O-rings provide a hermetic seal that is ideal for volatile chemicals, infectious materials, and valuable samples where evaporative loss must be minimized. Non-O-ring designs, including rim-seal and plug-seal caps, are suitable for most routine molecular biology storage applications at temperatures between &minus;20 &deg;C and &minus;80 &deg;C and are often easier to open when working in cold environments.
Internal Thread vs External Thread
Internal-thread screw cap tubes maintain a smooth exterior profile and are generally compatible with standard microcentrifuge rotors without requiring additional adapters. External-thread designs provide easier cap handling while wearing gloves and are frequently used in self-standing tube formats that can be placed directly in racks.
Volume Selection: 0.5 mL vs 1.5 mL vs 2.0 mL
0.5 mL screw cap tubes are commonly used for concentrated enzymes, antibodies, and other valuable reagents where minimizing dead volume is important.
1.5 mL screw cap tubes are the standard choice for molecular biology applications, including RNA and DNA storage, pellet recovery, and protein fraction collection.
2.0 mL screw cap tubes provide additional capacity and headspace for bead-based extraction methods, precipitation workflows, and sample mixing procedures.
Nest Scientific offers 0.5 mL, 1.5 mL, and 2.0 mL self-standing screw cap tubes with multiple cap color options to simplify sample identification and organization.
Sterility Grade
Sterile screw cap tubes are gamma- or E-beam-irradiated to a sterility assurance level (SAL) of 10⁻⁶ and are recommended for RNA applications, clinical specimen processing, and cell culture workflows. Non-sterile RNase-free and DNase-free tubes provide a cost-effective alternative for DNA and protein-related applications.
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<h2 data-section-id="ibka1i" data-start="2868" data-end="2901">Compare Screw Cap Tube Options</h2>
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Nest Scientific self-standing screw cap tubes are available in 0.5 mL, 1.5 mL, and 2.0 mL volumes with external threads and integrated sealing rings. Rated up to 20,000 &times; g, these tubes are ideal for general sample storage and laboratories that use color-coded organization systems.
Globe Scientific self-standing screw cap tubes with silicone O-rings are offered in 1.5 mL and 2.0 mL formats. Their enhanced sealing performance makes them particularly suitable for volatile samples, cryogenic storage, and applications where maximum sample protection is required. These tubes are rated up to 20,000 &times; g.
Conical-bottom screw cap tubes are commonly available in 1.5 mL formats with internal threads and optional sealing systems. Their conical design improves pellet recovery and makes them well suited for precipitation and centrifugation workflows. These tubes can withstand centrifugal forces up to 20,000 &times; g.
Amber screw cap tubes are available in 1.5 mL and 2.0 mL capacities and feature O-ring seals for additional protection. Designed for light-sensitive samples, they are typically rated up to 16,000 &times; g and help protect reagents from light-induced degradation.
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<h2 data-section-id="1jl751w" data-start="4094" data-end="4119">Specifications Context</h2>
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Globe Scientific and Nest Scientific screw cap microtubes are manufactured from USP Class VI virgin polypropylene and are certified RNase-free, DNase-free, and non-pyrogenic by lot. Nest Scientific screw cap tubes are available with six cap color options, including blue, red, yellow, purple, green, and natural, and are typically packaged in packs of 50 tubes with 500 tubes per case. These tubes are suitable for temperatures ranging from &minus;80 &deg;C to +121 &deg;C.
As of 2026, MBP stocks both self-standing and conical-bottom screw cap tube formats from Globe Scientific and Nest Scientific. Availability may vary by volume, cap style, and color configuration.
Don't let equipment choices hold back your next breakthrough. <a href="https://mbpinc.net/contact-us" style="color: #236fa1; text-decoration: underline;">Contact our team at Molecular Biology Products Inc.</a> for a custom quote.

Screw Cap Tubes

DataSheet

2.0ml Tubes with Screw Cap Tube, Conical bottom

SCT-200 by Novas Bio — 2.0 mL conical screw cap tube, medical-grade PP, DNase/RNase-free, non-pyrogenic, O-ring seal with pierceable syringe port, −80°C to +121°C, 20,000 × g rated. Non-sterile 500/pack or sterile 100/pack.

Manufacturer

Screw Cap Tube. 2.0ml. Conical, Clear

Screw Cap Tube. 2.0ml. Conical, Green

Screw Cap Tube. 2.0ml. Conical, White

Screw Cap Tube. 2.0ml. Conical, Blue

Screw Cap Tube. 2.0ml. Conical, Yellow

Screw Cap Tube. 2.0ml. Conical, Red

Square Well Deep Well Plates

<h2 data-section-id="7nn2n" data-start="0" data-end="42">What Are Square Well Deep Well Plates?</h2>
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Square well deep well plates are polypropylene microplates designed with square-shaped wells instead of traditional round wells. This design maximizes liquid capacity within the standard SBS/ANSI microplate footprint, making them ideal for high-throughput laboratory workflows that require larger sample volumes. Commonly available in 96-well formats with capacities ranging from 1.1 mL to 2.2 mL per well, these plates are widely used for nucleic acid extraction, protein precipitation, compound library storage, sample preparation, and automated liquid handling.
The square-well geometry increases usable volume while maintaining compatibility with automated platforms from Hamilton, Tecan, Beckman Coulter, and Agilent. Manufactured from virgin polypropylene, square well plates offer excellent chemical resistance to DMSO, ethanol, acetonitrile, and extraction buffers, while minimizing sample binding and contamination risks.
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<h2 dir="ltr">Product Range:</h2>
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96-square well storage plates for sample management.
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2.2ml deep well plates for large-volume handling.
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V-bottom square well plates for maximum sample recovery.
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DNA-free deep well microplates for molecular applications.
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Medical-grade polypropylene plates for chemical durability.
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Automation-ready square well formats for robotic integration.
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Deep well plates for bead beating and high-impact use.
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Chemical-resistant 96-well plates for harsh reagents.
</li>
</ul>
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<h2 data-section-id="1lthnju" data-start="1133" data-end="1179">How to Choose Square Well Deep Well Plates</h2>
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Well Volume The most common formats are 2.0 mL and 2.2 mL square well plates, which provide sufficient volume for nucleic acid extraction, protein precipitation, and compound storage workflows. Lower-profile 1.1 mL plates are useful when deck height limitations or freezer space optimization are important considerations.
Bottom Geometry V-bottom wells concentrate liquid and pellets into a single point, enabling more complete aspiration and improved recovery during centrifugation-based workflows. U-bottom wells promote better mixing and resuspension, making them suitable for microbial culture applications and serial dilutions.
Centrifugation Requirements Most square well polypropylene plates are compatible with centrifugation speeds between 4,000 &times; g and 6,000 &times; g. For demanding extraction protocols, reinforced plate designs provide additional structural stability during high-speed centrifugation.
Automation Compatibility Select plates that comply with ANSI/SLAS standards and include molded alphanumeric indexing for sample tracking. Features such as stacking lugs and raised well rims improve robotic handling and sealing performance.
Certification Standards For molecular biology applications, choose plates manufactured from virgin polypropylene and certified DNase-free, RNase-free, DNA-free, and PCR inhibitor-free. Sterile options are recommended for sensitive workflows and regulated environments.
&nbsp;
<h2 data-section-id="u7fdje" data-start="3248" data-end="3283">Specifications and Applications</h2>
&nbsp;
Square well deep well plates are typically manufactured from high-purity polypropylene and operate across a wide temperature range, often from approximately &ndash;86&deg;C to +125&deg;C. Most plates conform to ANSI/SLAS microplate dimensions (127.76 &times; 85.48 mm), ensuring compatibility with automated liquid handlers, centrifuges, incubators, and storage systems.
Today, 2.0 mL and 2.2 mL square well V-bottom plates remain the preferred format in pharmaceutical research, clinical diagnostics, genomics laboratories, and biobanking facilities due to their high volume capacity, efficient liquid recovery, and seamless integration into automated workflows.
Upgrade your lab with durable essentials that won't fail during critical runs. Browse our website and <a href="https://mbpinc.net/contact-us" style="color: #236fa1; text-decoration: underline;">request a quote from the team at MBP</a> for your supplies.

2.2ml Square well U bottom Deep Plate

MBPDSW22-UB by MBP — 96-well deep-well plate, 2.2 mL/well, U-bottom, half-skirted, ultra-thin wall medical-grade PP, DNase/RNase/endotoxin-free, 6,000 RCF rated.

Universal Centrifuge Accessories

<h2>What Are Universal Centrifuge Accessories?</h2>
&nbsp;
Universal centrifuge accessories are the interchangeable components that determine the range of applications a universal centrifuge can perform. These include swing-out rotor buckets for blood tubes, conical tubes, microplates, and large bottles; fixed-angle rotors for high-speed pelleting; hematocrit and cytospin rotors; tube adapters; and aerosol-tight bio-containment lids. Selecting the appropriate accessories allows a single centrifuge to support multiple laboratory workflows efficiently and safely.
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<h2 dir="ltr">What you will find:</h2>
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Tube adapters and inserts for compatibility with multi-volume samples&nbsp;
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Fixed-angle and swing-out rotors for varied centrifugation applications
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Lids and sealed buckets for safe and reliable operations
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PCR adapters and microplate carriers for high-throughput workflows
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Centrifuge tubes, holders, and supporting aids for efficient and complete setups
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</ul>
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<h2>How to Choose Universal Centrifuge Accessories</h2>
&nbsp;
Swing-Out Bucket Selection by Application
Choose swing-out buckets according to the sample formats used in your laboratory. Blood tube buckets support routine clinical applications, conical tube buckets are suitable for cell culture and molecular biology, microplate carriers enable high-throughput workflows, and large-bottle carriers accommodate large-volume sample processing.
Fixed-Angle Rotors
Fixed-angle rotors provide higher centrifugal forces for microtube, PCR tube, and small-volume sample processing. Ensure that both the rotor and centrifuge motor specifications support the required operating speeds and sample formats.
Cytospin Clip Rotors
Cytospin rotors are designed for preparing microscope slides from low-cellularity samples such as body fluids. Verify compatibility with the required funnel sizes and use bio-containment features when processing potentially infectious materials.
Bio-Containment Lids
Aerosol-tight lids help contain biological samples during centrifugation and support safe laboratory practices. Regular inspection of sealing components and O-rings ensures reliable containment and long-term performance.
Reducing Adapter Inserts
Adapter inserts allow smaller tubes to fit securely within larger bucket positions. Using properly matched adapters improves balance, prevents movement during operation, and helps maintain consistent centrifugation results.
&nbsp;
<h2>Specifications Context</h2>
&nbsp;
Modern universal centrifuge systems support interchangeable accessory configurations that enable rapid transitions between clinical, research, cell culture, and cytology workflows. Swing-out buckets, fixed-angle rotors, and microplate carriers provide flexibility while maintaining compatibility with a broad range of vessel formats.
Routine inspection and maintenance of accessories, including adapters, lids, and sealing components, help ensure safe operation and extend equipment lifespan. Advances in bio-containment systems and modular rotor designs continue to improve laboratory efficiency and versatility.
Time to upgrade your universal centrifuge accessories. <a href="https://mbpinc.net/contact-us">Contact the expert team </a>of Molecular Biology Products Inc. (MBP) and the find perfect match today.

20 x 10ml High Speed Rotor

Z326-2010 by Hermle/Benchmark Scientific is a 20-position fixed-angle rotor for the Hermle Z326 and Z326-K centrifuges, accommodating 20 × 10 mL conical tubes.

Manufacture

200ml Round bucket for Z327-200-AC, 2/pk

Z327-200-BUK by Hermle is a 2-pack of hermetically sealed 200 ml round replacement buckets for the Z327-200-AC swing-out rotor on Hermle Z307 and Z327 universal centrifuges. Designed for aerosol containment in biohazardous and clinical-research centrifugation. Lids not included — sold separately.

200ml conical insert for Z327-200-BUK, 2/pk

The Z327-200-A200 by Hermle is a 200 mL conical tube insert for the Z327-200-BUK swing-out rotor buckets on the Hermle Z307 and Z327 Universal Centrifuges, supplied as a pack of two. It converts the rotor's standard bucket cavity to accept a single 200 mL conical vessel per bucket, enabling large-volume conical tube runs without a separate rotor.

<h2>What are epigenetics enzymes and inhibitors?</h2>
&nbsp;
Epigenetics enzymes and inhibitors are the molecular tools for directly studying or modulating the enzymatic machinery that writes, erases, or reads epigenetic marks. The major classes include: DNA methyltransferases (DNMT1, DNMT3A, DNMT3B), which catalyze the addition of a methyl group to cytosine; TET family enzymes (TET1, TET2, TET3), which oxidize 5-methylcytosine to 5-hydroxymethylcytosine; histone acetyltransferases (HATs) and histone deacetylases (HDACs), which add and remove acetyl groups from histone lysine residues; and histone methyltransferases (HMTs) including EZH2, DOT1L, and G9a. Small-molecule inhibitors of HDAC and DNMT enzymes are the most clinically and experimentally advanced of these tools.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" role="presentation">Micrococcal nuclease for nucleosome mapping and controlled chromatin digestion applications</li>
<li dir="ltr" role="presentation">DNA shearing enzymes for consistent fragmentation of DNA in sequencing and epigenetic workflows</li>
<li dir="ltr" role="presentation">DNA degradation enzymes for controlled breakdown and analysis of nucleic acids&nbsp;</li>
<li dir="ltr" role="presentation">CpG methylase enzymes for targeted DNA methylation (CpG-specific )&nbsp; in epigenetic modification studies</li>
<li dir="ltr" role="presentation">5-hmC glucosyltransferase for detection and labeling of hydroxymethylcytosine in DNA</li>
<li dir="ltr" role="presentation">SAM (S-adenosylmethionine) cofactors for supporting enzyme activity and methylation reactions</li>
<li dir="ltr" role="presentation">DNA digestion enzymes for genomic DNA processing workflows</li>
<li dir="ltr" role="presentation">dsDNA nuclease systems for controlled cleavage and analysis of double-stranded DNA</li>
</ul>
&nbsp;
<h2>How to choose epigenetics enzymes and inhibitors</h2>
&nbsp;
Choose DNMT inhibitors to globally reduce or deplete DNA methylation in cells
Nucleoside analog DNMT inhibitors like 5-azacytidine and decitabine incorporate into DNA and trap DNMT1, preventing maintenance methylation and causing passive demethylation through DNA replication, while newer non-nucleoside DNMT inhibitors are in development for more selective, non-genotoxic methylation reduction.
Choose HDAC inhibitors to globally increase histone acetylation
HDAC inhibitors including pan-HDAC hydroxamates like vorinostat (SAHA) or class-selective compounds reduce histone deacetylase activity and cause hyperacetylation of histone lysine residues, broadly promoting gene expression at silenced loci. HDAC inhibitors are the most clinically advanced class of epigenetic therapeutics, with multiple FDA-approved compounds.
Use TET enzyme preparations for in vitro 5-hmC oxidation studies
Purified TET1, TET2, or TET3 enzyme preparations allow controlled in vitro oxidation of 5-methylcytosine to 5-hydroxymethylcytosine and further oxidation products, useful for generating defined 5-hmC-containing substrate DNA or studying TET enzyme activity and selectivity.
Choose EZH2 or other HMT inhibitors for studying PRC2-dependent gene silencing
EZH2, the catalytic subunit of polycomb repressive complex 2 (PRC2), catalyzes H3K27 trimethylation (H3K27me3), a histone modification associated with repression of tumor suppressor genes, and EZH2 inhibitors like tazemetostat are used in research to probe the role of this silencing mark.
Combine inhibitors to study epistatic relationships between epigenetic marks
Because DNA methylation, histone acetylation, and histone methylation are mechanistically linked, combining HDAC inhibitors with DNMT inhibitors can produce synergistic effects on gene expression exceeding either alone, and these combination approaches are both experimental tools and the basis for combination epigenetic therapy research.
&nbsp;
<h2>Specifications context</h2>
&nbsp;
HDAC and DNMT inhibitors are the most clinically advanced classes of epigenetic therapeutics, with multiple HDAC inhibitors including vorinostat and romidepsin approved for hematological malignancies, EZH2 inhibitors including tazemetostat having received accelerated approval, and multiple BET inhibitors in clinical trials. As of 2026, CRISPR/dCas9 systems fused with DNMTs, TETs, and HDACs enable locus-specific epigenome editing, extending classic enzyme and inhibitor approaches toward targeted epigenetic modulation.
<a href="https://mbpinc.net/contact-us">Contact the expert team at MBP</a> and find the suitable enzymes and inhibitory reagents for your lab.

Enzymes & Inhibitors

MSDS

20X SAM (S-adenosylmethionine) (12 mM) (200 µl)

E2010-3 by Zymo Research — 20X SAM (S-adenosylmethionine), 12 mM in 200 µL (600 µM at 1X). Methyl-donor cofactor for CpG methyltransferase (M.SssI) assays. Store at −20°C up to 12 months.

Shipping Condition

Storage Condition

225ml conical insert for Z496-1000-RBUK 2/pk

The Z496-1000-A225 by Hermle is a 225 ml (175–225 ml) conical insert (2/pk) for the Z496-1000-RBUK rectangular bucket on the Z496-1000-AC 4 x 1,000 ml swing-out rotor. Max 4,200 rpm / 3,964 xg on Hermle Z496 / Z496-K. Available from MBP Inc.

225ml conical insert, 2/pk

The Z446-750-A225 by Hermle is a 225 ml conical insert for the Z446-750 swing-out rotor on the Hermle Z446 and Z446-K centrifuges. Max 4,000 rpm / 2,754 × g (Z446) or 4,500 rpm / 3,486 × g (Z446-K). Max radius 15.4 cm, rated to −3°C at max speed. Sold in a 2-pack for mid-scale cell harvest, clarification, and precipitation workflows.

24 - place hematocrit tube rotor for Z287-A

The Z287-24HEM by Hermle Labortechnik is a 24-place, 90° fixed-angle hematocrit capillary rotor for the Z287-A microcentrifuge, rated to 13,000 rpm (16,058 × g) for rapid packed cell volume determination. Twenty-four positions allow simultaneous processing of a full capillary set in a single spin.

Sample Storage Container

<h2 dir="ltr">What are Urine Collection Products?</h2>
 Urine collection products for laboratory use are containers and preservative systems designed to collect, stabilize, and transport urine specimens for urinalysis (UA), urine culture (C&amp;S), nucleic acid-based testing (NAAT for STIs), cell-free DNA (cfDNA) liquid biopsy, and 24-hour timed collections. Formats include sterile cups (30&ndash;60 mL), preservative tubes (5&ndash;50 mL), vacuum-draw urine transfer tubes, 24-hour collection containers (2&ndash;3 L), and preservative-prefilled devices for ambient-temperature stabilization of DNA, RNA, and proteins. Choose urine collection products with an active preservative when specimens cannot be processed within 2 hours of collection, when samples must be shipped to a centralized lab, or when nucleic acid integrity over 24+ hours is required.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" role="presentation">Sterile urine collection containers for routine diagnostic sampling</li>
<li dir="ltr" role="presentation">Urine transport tubes for secure handling and transfer workflows</li>
<li dir="ltr" role="presentation">Preservative urine tubes for culture and urinalysis stability</li>
<li dir="ltr" role="presentation">Midstream urine collection systems for contamination reduction</li>
<li dir="ltr" role="presentation">24-hour urine collection containers for metabolic testing workflows</li>
<li dir="ltr" role="presentation">Leak-resistant screw-cap urine tubes for safe transport</li>
<li dir="ltr" role="presentation">Graduated urine containers with volume markings for easy measurement</li>
<li dir="ltr" role="presentation">Pediatric urine collection solutions for low-volume sampling</li>
<li dir="ltr" role="presentation">Closed-system urine transfer devices for reduced exposure handling</li>
<li dir="ltr" role="presentation">General laboratory urine collection consumables for research use</li>
</ul>
<h2 dir="ltr"> How to Choose Urine Collection Products</h2>
 Application: Culture vs. NAAT vs. Nucleic Acid Research For culture (C&amp;S), use sterile cups or boric acid preservative tubes. For NAAT (STI panels for Chlamydia, Gonorrhea), use sterile cups or manufacturer-validated transfer tubes; confirm with your platform's IFU (e.g., Hologic Aptima Combo 2 uses a specific urine transport tube). For nucleic acid research (cfDNA, RNA, protein), use dedicated urine preservative tubes (Norgen, Streck) that stabilize analytes for up to 72 hours at room temperature. Volume: Random vs. 24-Hour Collection Random midstream urine (10&ndash;30 mL) is adequate for urinalysis, culture, and NAAT. Timed 24-hour collections (total volume 500&ndash;3000 mL) require large-volume containers with the appropriate preservative for the ordered panel. Mixing 24-hour containers with different preservatives is a common error&mdash;verify the correct preservative type with the laboratory before dispensing to the patient. Preservative Compatibility Boric acid tubes maintain bacterial counts for culture up to 24 hours at room temperature. Boric acid is NOT compatible with NAAT workflows&mdash;it inhibits PCR. For NAAT, use plain sterile containers or manufacturer-specific transfer tubes. For liquid biopsy cfDNA, Streck Cell-Free DNA Urine Preservative maintains cell integrity and prevents genomic DNA contamination for up to 72 hours. Sterility All urine containers intended for culture must be certified sterile. Containers for NAAT must be certified DNase-free and RNase-free to prevent nucleic acid contamination from the container. Confirm sterility and nuclease-free certification in the manufacturer's datasheet before use in molecular workflows. Automated Compatibility For high-throughput labs using automated urine analyzers (Sysmex UF-5000, Siemens CLINITEK), confirm that the collection tube format and cap design are compatible with tube-handling robotics. Copan UriSponge&reg; (FDA-cleared October 2024) is a boric-acid-free device validated for direct loading on WASP&reg; automation systems. 
&nbsp;
<h2 dir="ltr">Specifications Context</h2>
 Standard urine collection cups are manufactured from transparent polypropylene (PP) or polystyrene (PS) with wide-mouth, screw-cap lids. Sterile cups rated for culture meet ISO 7886 and are non-pyrogenic. Boric acid preservative tubes contain approximately 1.8% boric acid, stabilizing bacterial counts by creating a bacteriostatic environment. Norgen urine preservative tubes (5&ndash;50 mL, available in multiple sizes) stabilize DNA, RNA, microRNA, and protein from fresh urine for over 2 years at room temperature per manufacturer validation data. As of 2026, liquid biopsy studies using urine cfDNA routinely use Streck Cell-Free DNA Urine Preservative (3 mL per 30 mL urine) as the standard stabilization protocol in published clinical research protocols. 
Need help picking the right urine collection setup? <a href="https://mbpinc.net/contact-us">Contact MBP</a>, and we&rsquo;ll help you sort it out fast. No confusion, just the right fit for your workflow.

Urine Collection Products

Flyer

24 Hour Urine Collection Container

Globe Scientific 108010 — 3,000 mL amber polyethylene 24-hour urine collection container with affixed TransferTop™ screwcap for closed-system vacuum tube transfer. Molded graduated markings, ergonomic handles, and light-protective amber color for sensitive analytes. Pack of 30.

Container, 24 Hour Urine Collection, 3000mL (3 Liter), Affixed TransferTop Screwcap, Amber, CS/30

Container, 24 Hour Urine Collection, 2000mL (2 Liter), Affixed Screwcap, Amber, CS/54

Container, 24 Hour Urine Collection, 2500mL (2.5 Liter), Affixed Screwcap, Amber, CS/30

Container, 24 Hour Urine Collection, 3000mL (3 Liter), Affixed Screwcap, Amber, CS/30

Container, 24 Hour Urine Collection, 3 Liter, Red with Screwcap and Snap Pour Spout, CS/40

Biologix Deep Well Plates -10ml (Square wells)

24 SQUARE DEEP WELL PLATE 10ML,V BOTTOM，KINGFISHER FLEX

02-9110 24 Square Deep Well Plate 10 ml V-Bottom by Biologix — 24-well, square-well, V-bottom plate with 10 ml capacity per well, designed for use with the Thermo Scientific KingFisher Flex magnetic particle processor for automated nucleic acid purification and bead-based separation workflows. Available from MBP.