Brands

Biosafety Cabinet

<h2>What Are Biosafety Cabinets?</h2>
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Biosafety cabinets (BSCs) are ventilated enclosures designed to protect laboratory personnel, the product being handled, and the surrounding environment from biological aerosols generated during work with infectious agents, cell cultures, or recombinant DNA. Class II biosafety cabinets&mdash;the type found in most research, clinical, and pharmaceutical labs&mdash;use a combination of inward airflow and HEPA-filtered laminar downflow to create a sterile work zone while containing any generated aerosols. All Class II BSCs sold in the United States must be independently tested and certified to NSF/ANSI 49-2024, the governing standard for design, construction, performance, and field certification of biosafety cabinetry.
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<h2 class="MsoNormal">What you will find:</h2>
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<ul>
<li class="MsoNormal" style="font-family: arial, helvetica, sans-serif;">NSF-certified Class II Type A2 biosafety cabinets with multiple options for height. Helps in flexible setups, routine use, and high-performance lab applications</li>
<li class="MsoNormal" style="font-family: arial, helvetica, sans-serif;">HEPA-filtered biosafety cabinets and Class II Type B2 for advanced contamination control and work with high risk.</li>
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<h2>How to Choose a Biosafety Cabinet</h2>
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Cabinet Class and Type
Class I cabinets protect personnel and environment but not the product. Class II cabinets protect all three&mdash;personnel, product, and environment&mdash;and account for approximately 80% of the global BSC market. Within Class II, Type A2 (70% recirculation, 30% exhaust) is the most versatile for BSL-1 through BSL-3 work; Type B2 (100% exhaust) is required when chemical hazards are present alongside biological materials.
Work Surface Width (3 ft / 4 ft / 6 ft)
A 4-foot (1.2 m) cabinet provides roughly 580 &times; 470 mm of usable work surface and suits most single-researcher applications. Multi-user core lab settings or workflows that place instruments inside the cabinet&mdash;incubators, centrifuges, aspiration manifolds&mdash;typically require a 6-foot (1.8 m) model.
Airflow Configuration and Building Exhaust
Type A2 and A1 cabinets can operate without building exhaust connection (thimble canopy connection is optional). Type B1 and B2 cabinets require a dedicated, hard-ducted exhaust system engineered for the specific cabinet's exhaust volume and static pressure. Confirm exhaust infrastructure before ordering a B-type cabinet.
Energy Efficiency and Noise
Modern cabinets with brushless DC ECM motors consume up to 68% less energy than legacy AC-motor models and produce lower noise levels, an important consideration for labs with extended daily use. LED lighting replaces fluorescent in most current-generation BSCs, further reducing heat load inside the cabinet.
Annual Certification Requirement
Budget for annual NSF/ANSI 49 field certification by an accredited certifier at time of purchase. Certification verifies inflow velocity (&ge;100 ft/min for Type A2), downflow velocity, HEPA filter integrity, UV lamp output, and alarm systems. Institutional biosafety committees and accreditation bodies treat a lapsed certification as equivalent to an uncertified cabinet.
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<h2>Specifications Context</h2>
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NSF/ANSI 49-2024 requires a minimum inflow velocity of 100 ft/min (0.51 m/s) for Type A2 cabinets at the front access opening, and downflow velocities specified per cabinet width. HEPA filter efficiency is &ge;99.97% at 0.3 &micro;m (MPPS); ULPA filters achieve 99.9995% at 0.12 &micro;m. Cabinet certifiers must test 13 physical parameters per NSF/ANSI 49 Section 6 and Normative Annex N-1, including microbiological challenge tests using aerosolized&nbsp;Bacillus subtilis&nbsp;var.&nbsp;niger spores. As of 2026, IoT-connected cabinets with real-time airflow monitoring and remote alarm notification are available from several manufacturers. HEPA filter life is typically 3&ndash;5 years under normal use conditions.
The search for a reliable biosafety cabinet is over. <a href="https://mbpinc.net/contact-us">Contact now with the expert team</a> at Molecular Biology Products Inc. (MBP) to find the right solution for your lab.

Front glass panel motor adjusting tool, plastic

2 Ft Class II Type A2 Biosafety Cabinet with Detachable Stand

BC-2F.110 by Across International is a 2-foot Class II Type A2 biosafety cabinet certified to NSF/ANSI 49, with dual HEPA filters at 99.995% efficiency at 0.3 µm, 70%/30% recirculation/exhaust airflow, and a detachable stand included. The 27.5-inch work surface suits research laboratories requiring reliable containment for biological material at 110V

Manufectuer

Universal Centrifuge Accessories

<h2>What Are Universal Centrifuge Accessories?</h2>
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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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<ul>
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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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<li dir="ltr" style="font-family: helvetica, arial, sans-serif;" aria-level="1">
PCR adapters and microplate carriers for high-throughput workflows
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<li dir="ltr" style="font-family: helvetica, arial, sans-serif;" aria-level="1">
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>
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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.
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<h2>Specifications Context</h2>
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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.

2 place swing out microplate rotor

Z326-02MP by Benchmark Scientific is a 2-place swing-out microplate rotor holding 2 × 3 microplates (6 total), rated to 4,500 rpm and 2,716 xg. Compatible with Hermle Z326, Z306, Z36-HK, Z32-HK, Z446, and Z366 centrifuges; includes 2 plate carriers.

Manufacture

2 x 15ml conical insert for Z306-100 2/pk.

Z306-100-A15 by Hermle adapts the Z306-100 swing-out bucket to accept 15 ml conical tubes, sold as a pack of 2. Compatible with Hermle Z306 and Z326 universal centrifuges.

2 x 15ml conical inserts for Z326-100H rotor, 2/pk.

The Z326-100H-A15 by Hermle is a 2 x 15 ml conical insert (2/pk) for the Z326-100H hermetically sealed 4 x 100 ml swing-out rotor. Max 5,000 rpm / 3,885 xg on Hermle Z306 / Z326. Enables sealed 15 ml tube centrifugation with aerosol containment. Available from MBP Inc.

2 x 250ml insert for Z496-1000-RBUK 2/pk

Z496-1000-A250 by Benchmark Scientific is a 2 × 250 ml tube insert for the Z496-1000-RBUK rectangular swing-out bucket on Hermle Z496-K and Z496-K-UC centrifuges, rated to 4,200 RPM / 3,964 × g. Sold 2 inserts per pack. Order at mbpinc.net/quickorder or contact <a href="mailto:customerservice@mbpinc.net">customerservice@mbpinc.net</a>.

2 x 50ml conical bucket Z327-200-AC, 2/pk *not lid compatible

The 50 ml Conical Bucket Z327-200-B50 by Hermle Labortechnik is a conical-bottom swing-out bucket sold 2 per pack, designed for the Z327-200-AC rotor on Hermle Z327 series universal centrifuges. Suited to cell culture pellets, tissue clarification, and 50 ml conical tube processing. Important: this bucket is not compatible with lid accessories — use the lid-compatible variant for aerosol-contained applications.

2 x 50ml conical buckets, 2/pk.

Z326-100H-B50 by Hermle is a 2-pack of hermetically sealed swing-out buckets, each holding 2 × 50 ml conical tubes, for the Hermle Z326-100H rotor on Z306 and Z326 centrifuges. Two packs fill all four positions for a total run capacity of 8 × 50 ml tubes at up to 5,000 rpm / 3,885 × g with aerosol containment.

2 x microplate swing out rotor for Z287-A

The Z287-02MP by Hermle is a 90° swing-out microplate rotor for the Z287-A microcentrifuge, spinning two standard SBS microplates at up to 3,800 rpm and 1,453 xg. The swing-out geometry delivers flat, even pellets at the bottom of every well—the preferred geometry for ELISA washes, cell pelleting, and bead-based assays. The Z287-A automatically identifies the rotor and enforces the speed limit.

<h2>What is Chemicals as a reagent category?</h2>
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Chemicals covers the broad range of chemical and biochemical reagents used across molecular biology, cell biology, biochemistry, and general laboratory work: biochemically relevant compounds like vitamins, buffer salts, amino acids, and enzyme substrates; general laboratory chemicals including solvents, acids, bases, and inorganic salts; and research-grade specialty chemicals for specific applications. Unlike application-specific categories such as Epigenetics or Electrophoresis, which organize reagents by research workflow, Chemicals organizes by the nature of the material itself.
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<h2 dir="ltr">What you'll Discover:</h2>
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<ul>
<li dir="ltr" aria-level="1">
<a href="https://mbpinc.net/reagents/chemicals/biochemical-reagents" title="Biochemical Reagents:">Biochemical Reagents:</a> High-quality metabolic inducers such as IPTG (G116), L-Arabinose (A2001-ZYM), and Cumate (CH065), along with essential buffers and enzyme stabilizers like TRIS (CH059), DTT (G025), and PMSF (G034).
</li>
<li dir="ltr" aria-level="1">
<a href="https://mbpinc.net/reagents/chemicals/inorganic-reagents-and-compounds" title="Inorganic Reagents &amp; Compounds:">Inorganic Reagents &amp; Compounds:</a> Ultra-pure essential chemical substances like Sodium Azide (CH052) designed for accurate laboratory buffer enhancement and sample conservation methodologies.
</li>
<li dir="ltr" aria-level="1">
<a href="https://mbpinc.net/reagents/chemicals/detergents-and-surfactants" title="Detergents &amp; Surfactants:">Detergents &amp; Surfactants:</a> Enhanced cell lysis and denaturing agents featuring 20% SDS (CH100) and concentrated 10X Tris-Glycine-SDS Buffer (CH125) for protein electrophoresis setup.
</li>
</ul>
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<h2>How to navigate Chemicals</h2>
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Start with Biochemical Reagents for biologically relevant compounds
Biochemical Reagents covers the subset of the catalog most relevant to molecular and cell biology workflows: vitamins and cofactors, buffer salts and ready-to-use buffer solutions, amino acids, and other compounds with specific roles in biological systems.
Check purity grade requirements before ordering a research chemical
Research-grade chemicals vary in purity from technical grade to ACS-certified, HPLC-grade, and molecular biology grade, with the appropriate grade depending on how the chemical is used; cell culture and enzymatic applications generally require higher purity than non-biological analytical or general lab use.
Confirm whether your chemical needs are better served by a specialty category
Some research chemicals belong more naturally in application-specific sections of the catalog, such as chromatin immunoprecipitation buffers in Epigenetics or gel running buffers in Electrophoresis, while general-purpose chemicals and biochemical reagents not tied to a single workflow type belong in this Chemicals branch.
Consider bulk ordering for high-consumption research chemicals
Common research chemicals like buffer salts, solvents, and vitamins are used in large quantities by active research labs, and bulk pricing can represent meaningful savings on frequently replenished reagents.
Look for certificates of analysis when accuracy matters for your application
Quantitative applications, including analytical standards, enzyme kinetics studies, and defined cell culture supplementation, require chemicals with documented lot-specific purity and concentration, typically confirmed by certificate of analysis provided with each lot.
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<h2>Specifications context</h2>
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Research-grade purity designations for laboratory chemicals follow widely adopted convention systems including ACS grade (meets American Chemical Society purity specifications), HPLC grade (verified purity for chromatographic applications), and molecular biology grade (certified free from nuclease, protease, and other activities that would interfere with molecular biology applications). As of 2026, pre-made, ready-to-use solutions for common biochemical reagents like PBS, HEPES buffer, and Tris-HCl continue to see growing adoption over powder or concentrated formats in labs prioritizing convenience and reproducibility over reagent cost per use.
<a href="https://mbpinc.net/contact-us">Reach out to the friendly team at MBP</a> now to get a quote for your particular research needs.

Chemicals

MSDS

2-Mercaptoethanol

Unit Quantity

Storage Condition

Shipping condition

Round Well Deep Well Plates

<h2 data-section-id="8npnrj" data-start="0" data-end="40">What are Round Well Deep Well Plates?</h2>
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Round well deep well plates are polypropylene microplates manufactured to ANSI/SLAS (SBS) footprint standards, featuring cylindrical wells that provide greater sample volumes than standard PCR or assay plates. Typical formats include 96-well plates with capacities of 1.2 mL, 2.0 mL, or 2.2 mL per well, designed for automated sample processing, nucleic acid extraction, microbial culture, compound storage, and high-throughput laboratory workflows.
The round well geometry promotes uniform mixing, consistent liquid movement during shaking, and efficient magnetic bead collection during automated extraction procedures. Unlike square well plates, which maximize storage volume, round well plates are preferred when sample recovery, mixing performance, and magnetic bead handling are critical.
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<h2 dir="ltr">What you will find:</h2>
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<ul>
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96-round well storage plates
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1.2ml deep well plates
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2.0ml round well plates
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Sterile deep well microplates
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DNase and RNase-free plates
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U-bottom deep well plates
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Polypropylene storage plates
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Automation-compatible round well plates
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Silicone sealing mats
</li>
</ul>
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<h2 data-section-id="m2xmka" data-start="1392" data-end="1436">How to Choose Round Well Deep Well Plates</h2>
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Well Volume
The 1.2 mL round well plate is specified for smaller-input nucleic acid extraction protocols (blood, plasma, swab) and fits automated deck formats with restricted Z-height clearance. The 2.0 mL round well format accommodates larger sample input volumes for high-yield extractions and is the standard format for Nest Scientific deep well plates used in nucleic acid processing. Confirm working volume versus total well volume in the product specification &mdash; a 2.0 mL plate typically has a total volume of 2,200&ndash;2,400 &micro;L.
Bottom Geometry
U-bottom (hemispherical) round wells are standard for sample storage, bacterial and cell culture, and general liquid handling where complete aspiration is not required. V-bottom (conical) round wells concentrate liquid and pellet to the lowest point for complete aspiration and enhanced pellet recovery, preferred in enzymatic assay and precipitation protocols. Flat-bottom round well plates are used when an optical flat surface is needed for absorbance-based assay measurement.
Sterility Requirements
Non-sterile round well deep well plates manufactured in ISO 8 cleanrooms satisfy most nucleic acid extraction and sample processing workflows. Sterile options (gamma-irradiated, SAL 10⁻⁶) are required for cell culture, bacterial culture, and RNA extraction from live cells. Autoclavable polypropylene formats provide a cost-effective reusable sterile option for labs with autoclave access.
Centrifugation and Sealing
Standard round well deep well plates are rated 4,000&ndash;6,000 &times; g. Raised well rims ensure consistent sealing with adhesive films, heat-seal foils, and pre-slit silicone mats. Nest Scientific 96-well round well silicone sealing mats (pre-slit, 7 mm diameter) are compatible with 0.35&ndash;1.35 mL round well plates.
Automation Compatibility
Specify virgin polypropylene, lot-certified DNase-free, RNase-free, DNA-free, and PCR inhibitor-free for nucleic acid extraction. Nest Scientific deep well plates use USP Class VI polypropylene material with high chemical stability for demanding extraction workflows.
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<h2 data-section-id="1jl751w" data-start="4818" data-end="4843">Specifications Context</h2>
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Round well deep well plates are manufactured from high-purity polypropylene and are commonly rated for temperatures from &minus;80&deg;C to +121&deg;C, supporting freezer storage and autoclave sterilization. Premium plates are produced from USP Class VI resins and tested for DNase, RNase, DNA, and PCR inhibitor contamination.
The 96-well 2.0 mL U-bottom round well plate remains one of the most widely used formats for automated nucleic acid extraction, biobanking, bacterial culture, and sample preparation workflows due to its balance of volume capacity, automation compatibility, and reliable magnetic bead performance.
Browse our range and <a href="https://mbpinc.net/contact-us" style="color: #236fa1; text-decoration: underline;">request a quote from the MBP team</a> to find the right fit for your lab.

2.0ML Deep Well Plates Hamilton

HM-20DWP is a sterilized 96-well deep well plate with 2.0 mL U-bottom circular wells, supplied 50 plates per case. Designed for Hamilton automated liquid handling platforms (STAR, STARlet, Nimbus). Suitable for sample storage, extraction workflows, and high-throughput compound arraying.

Manufacturer

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:
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
<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.
</li>
<li dir="ltr" aria-level="1">
<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.
</li>
<li dir="ltr" aria-level="1">
<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>
<li dir="ltr" aria-level="1">
<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>
<li dir="ltr" aria-level="1">
<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.
&nbsp;
<h2 data-section-id="1ezckh3" data-start="3318" data-end="3348">Specifications and Features</h2>
&nbsp;
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.
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0.5mL, 1.5mL, 2.0mL (for small to moderate volume applications)
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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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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 Clear Tubes with Screw Caps, Self-Standing, Non-Sterile

SCT-200SS by Novas Bio is a 2.0 mL clear medical-grade polypropylene screw-cap tube, self-standing, non-sterile, with O-ring seal. RNase-free, DNase-free, endotoxin-free by LAL method. Available in multiple cap colors.

Screw Cap Tube. 2.0ml. Self-Standing.

<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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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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<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

2.0ml External Thread Side-Coded Cryogenic Vials

2.0ml external thread, multi codes, sterile O-ring free designed cryogenic vials

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 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 PUEPLE CAPS ASSEMBLED , WITH SIDE BARCODE, PP, NO O-RING, 25 PIECES/BAG, 20 BAGS/PACK, 2 PACKS/CASE