Brands

Benchtop Recappers

<h2>What Are Benchtop Recappers?</h2>
&nbsp;
Benchtop recappers are compact, motor-driven instruments that automate the opening and sealing of screw-cap or push-cap sample storage tubes in standard rack formats (24-, 48-, and 96-position). They are used in biobanks, clinical sample management laboratories, genomics core facilities, and other environments where large numbers of cryogenic or ambient-storage tubes require repeated capping and decapping. Manual recapping at scale is a leading contributor to repetitive strain injury (RSI) in high-throughput sample preparation workflows.
&nbsp;
<h2>What you will find:</h2>
&nbsp;
<ul>
<li>RFID-enabled racks for reliable sample tracking</li>
<li>SBS-format compatibility for standardized laboratory workflows</li>
<li>Automated capper and decapper functionality for improved efficiency</li>
<li>Secure and consistent tube sealing with CT&trade; caps</li>
<li>Compact benchtop designs that maximize laboratory space</li>
</ul>
&nbsp;
<h2>How to Choose a Benchtop Recapper</h2>
&nbsp;
Throughput Format (24 / 48 / 96)
Select the rack format that matches your primary tube storage system. A 96-position automated device can process a full rack in under 60 seconds, while a semi-automated 8-channel row decapper can complete a single row in under 5 seconds, making it suitable for moderate-throughput laboratories without full-rack automation requirements.
Cap Type Compatibility
Confirm whether your tubes use screw caps or push caps, as each requires a different capping mechanism. Screw-cap recappers apply a preset torque value, typically between 1 and 5 N&middot;cm, and automatically stop when the proper seal is achieved. Push-cap systems rely on controlled vertical force. Multi-format adapters can support several tube brands within a single instrument.
Standalone vs. Integrated Systems
Standalone benchtop recappers are suitable for laboratories without dedicated automation infrastructure, while integrated models connect with Hamilton, Tecan, or Beckman Coulter workstations through SBS-format racks and software interfaces. Laboratories requiring LIMS connectivity and sample traceability should consider systems with built-in 1D and 2D barcode scanning capabilities.
Tube Diameter Range
Most automated recappers support standard collection tubes ranging from 13 to 16 mm in diameter and 75 to 115 mm in height. Verify compatibility with your cryovials or specialty microtubes before purchasing, particularly when using proprietary storage systems.
Maintenance Requirements
Pneumatics-free designs eliminate the need for compressed-air infrastructure and generally reduce maintenance demands. Pneumatic systems may offer high performance but require periodic servicing and access to a laboratory air supply.
&nbsp;
<h2>Specifications Context</h2>
&nbsp;
Rack format (24, 48, or 96 tubes) establishes the maximum throughput of a benchtop recapper. Torque settings must be compatible with the selected tube and cap combination, since excessive torque can crack caps while insufficient torque can lead to evaporation or contamination. SBS-format compliance ensures interoperability with industry-standard racks and automated workflows. As of 2026, many benchtop recappers incorporate IoT-enabled monitoring, barcode integration, and LIMS connectivity to improve sample traceability and reduce manual documentation requirements in high-throughput laboratories.
<a href="https://mbpinc.net/contact-us">Contact the expert team at Molecular Biology Products Inc. (MBP)</a> today to find the right benchtop recapper for your laboratory workflow.

Rack - Brochure

Racks with RFID Disks for CapTrack

Racks with RFID Disks for CapTrack, 72 Places

456440 by Globe Scientific is a 72-place full-size RFID tube rack (6&times;12 array, 200&times;102&times;57&nbsp;mm) pre-assembled with a unique RFID disk for CapTrack CT1 and CT2 tracking systems. Molded from reinforced nylon, fully autoclavable, with no coatings to peel. Available in multiple colors for color-coded specimen management.

Manufacture

Wireless Tube Rack with RFID for CapTrack CT1 and CT2 models - Full size, 13mm, 72 place, Blue

Wireless Tube Rack with RFID for CapTrack CT1 and CT2 models - Full size, 13mm, 72 place, Green 

Wireless Tube Rack with RFID for CapTrack CT1 and CT2 models - Full size, 13mm, 72 place, Magenta

Wireless Tube Rack with RFID for CapTrack CT1 and CT2 models - Full size, 13mm, 72 place, Orange

Wireless Tube Rack with RFID for CapTrack CT1 and CT2 models - Full size, 13mm, 72 place, Red

Wireless Tube Rack with RFID for CapTrack CT1 and CT2 models - Full size, 13mm, 72 place, White

Wireless Tube Rack with RFID for CapTrack CT1 and CT2 models - Full size, 13mm, 72 place, Yellow

<h2>What are mini lab balances?</h2>
&nbsp;
Mini lab balances are compact, lightweight weighing instruments designed to measure small masses with higher readability than general-purpose balances but in a smaller and more portable form factor than a full analytical balance. They typically offer readabilities of 0.001 g (1 mg) or better, capacities from 120 to 500 g, and small pan sizes suited to weighing out milligram quantities of reagents, standards, or small samples. Many mini balances include battery operation for field or portable use alongside AC adapter options for bench use.
&nbsp;
<h2>What you will see:</h2>
&nbsp;
<ul>
<li>Accuris&trade; Mini Balance - Portable mini balance used for routine daily weighing applications</li>
<li>GBT Semi-Micro Touchscreen Balance Series - Internal - Precision touchscreen mini balance featuring built-in calibration capability</li>
<li>Radwag 2.1/5.1g Capacity 1&micro;g Readability &oslash;0.6" MicroBalance - Sensitive microbalance with high precision and reliability</li>
</ul>
&nbsp;
<h2>How to choose a mini balance</h2>
&nbsp;
Match readability to your minimum weighing requirement
Balance readability determines the smallest mass difference the instrument can display, but the minimum net sample reliably weighable is typically 100&ndash;1000 times the readability, since below this threshold measurement uncertainty becomes significant. For weighing quantities in the range of tens to hundreds of milligrams, 0.001 g readability is generally sufficient; quantities below 10 mg benefit from 0.0001 g readability.
Check maximum capacity against your largest expected weighing task
Mini balances are optimized for small mass measurement and typically have maximum capacities of 120&ndash;500 g; exceeding the balance's capacity even momentarily can damage the load cell or shift the calibration. If you regularly weigh both small and larger quantities, a balance with higher maximum capacity or a second instrument for larger loads is more practical.
Confirm calibration method &mdash; internal vs external
Some mini balances support internal automatic calibration using a built-in calibration weight, while others require external calibration with a separate weight at set intervals. Internal calibration is more convenient and gives more consistent results across temperature fluctuations, which shift balance readings.
Evaluate whether battery operation is needed
If you need to weigh samples in a biosafety cabinet, fume hood, or field location without mains power, a mini balance with battery operation is necessary. For fixed bench use with reliable power, AC-only models are generally sufficient and may have better long-term stability.
Consider pan size relative to the containers you use
The pan size determines the footprint of vessel that can be placed on the balance; a pan too small for typical containers forces awkward positioning that risks uneven loading and reduced accuracy.
&nbsp;
<h2>Specifications context</h2>
&nbsp;
The minimum weight that can be reliably measured is determined by the USP minimum weight standard, which defines the minimum sample mass as the balance readability multiplied by a safety factor (typically 820 for pharmaceuticals), though in general laboratory use, a practical minimum of 100 times the readability is commonly applied to achieve 1% measurement uncertainty. As of 2026, mini balances with 0.001 g readability and internal calibration remain the most commonly purchased format for general reagent weighing at the benchtop or in a biosafety cabinet.
<a href="https://mbpinc.net/contact-us">Contact MBP today</a> to get more details about our mini balances products and other lab weighing products.

Mini Balances

Radwag 2.1/5.1g Capacity 1 µg Readability Ø0.6 Microbalance

ELLIPSIS – Unlimited Connections

Remote VPN Support on ELLIPSIS Balances

ELLIPSIS – Scan or Tap to Log In

Radwag 2.1/5.1g Capacity 1Âµg Readability Ã¸0.6" MicroBalance

Radwag MYA series microbalances: MYA 2.4Y (WL-101-0071) — 2.1 g/1 µg, Ø0.6 in pan; MYA 5.5Y (WL-109-0006) — 5.1 g/1 µg, Ø1 in pan. Auto internal calibration. For filter weighing, pharmaceutical micro-dosing, and nanomaterial characterization.

Manufacturer

Radwag 2.1g Capacity 1Âµg Readability Ã¸0.6" MicroBalance

Radwag 5.1g Capacity 1µg Readability Ø1" MicroBalance

<h2>What Are Precision Balances?</h2>
&nbsp;
A precision balance (also called a top-loading balance or semi-analytical balance at the finer end of the range) is an electronic weighing instrument that provides mass readability of 1 mg (0.001 g) to 0.1 g, with maximum capacities ranging from 120 g to 6 kg. They use either electromagnetic force restoration (EMFR) at the finer-readability end (1 mg to 0.1 mg) or strain-gauge load cells at the coarser end (0.01 g to 0.1 g), and most feature an open top-loading design without a full draft shield, distinguishing them from analytical balances. At 1 mg readability, some precision balance models include a partial windscreen (a three-sided partial enclosure) or removable draft shield panels; models at 0.01 g to 0.1 g readability typically operate in open-air conditions. Precision balances cover the widest range of routine laboratory weighing tasks: preparation of culture media batches in 2 to 5 L vessels (requiring 0.01 g accuracy), formulation of buffer concentrates, routine quality control check-weighing of capsules and tablets, dispensing of stock reagent aliquots, and any application where the protocol requires mass to two or three decimal places in grams without demanding the fourth decimal place (0.1 mg) of an analytical balance. A precision balance fills the gap between the 520 g capacity ceiling of a standard analytical balance and the coarse 0.1 g to 1 g readability of high-capacity bench scales; specify it when you need 1 mg to 10 mg resolution for samples up to 2 kg.
&nbsp;
<h2 dir="ltr">What you can find:</h2>
&nbsp;
<ul>
<li data-section-id="1vcyko4" data-start="25" data-end="110">Portable precision balances for routine laboratory and field weighing applications.</li>
<li data-section-id="1ry14v8" data-start="111" data-end="193">High-capacity precision balances for weighing larger samples and bulk materials.</li>
<li data-section-id="19ie366" data-start="194" data-end="295">Precision balances with internal or external calibration options for reliable measurement accuracy.</li>
<li data-section-id="10kqa2z" data-start="296" data-end="384">Touchscreen precision balances with advanced weighing functions and data connectivity.</li>
<li data-section-id="1uqcy5z" data-start="385" data-end="528" data-is-last-node="">Precision balance series from leading manufacturers, including Accuris and Radwag, for research, education, and quality control laboratories.</li>
</ul>
&nbsp;
<h2>How to Choose a Precision Balance</h2>
&nbsp;
Readability and capacity: matching both parameters
Precision balance selection requires matching both readability and capacity to the application. For weighing 0.5 to 5 g samples into vials for dissolution testing (where 1 mg accuracy is needed but a 520 g capacity is insufficient for the tare container), a 600 g x 0.01 g balance is the correct choice. For preparing 500 mL to 2 L media batches where 0.01 g accuracy is adequate, a 2 kg x 0.1 g balance covers the full range. For piece counting or check-weighing of bulk tablet batches, a 3 to 6 kg x 0.1 g precision balance handles the total weight of a tray or container of units.
Draft shield options
Precision balances at 1 mg (0.001 g) readability are affected by air currents and require either a full draft shield (as found on analytical balances) or, at a minimum, a three-sided windscreen to stabilize readings. Most 1 mg readability models in the 120 g to 620 g range include a removable glass draft shield. At 0.01 g readability, most models are used open-air on the bench, as air currents introduce errors of approximately 0.01 g, within the resolution tier of the instrument. Confirm the precision balance's recommended environmental conditions (maximum air velocity for stable readings) for the intended installation location.
Internal vs. external calibration
Precision balances with built-in internal calibration (a motorized weight that deploys automatically on temperature change or user command) maintain calibration between periodic external verification intervals without operator intervention. This is important in high-use labs where temperature fluctuates by 2 to 3 degrees C during the day. External calibration balances are lower cost and suitable when calibration is performed on a defined schedule (daily or weekly before use) using a certified reference weight. Most precision balance models at 0.01 g readability and above are available in both internal and external calibration configurations.
Advanced weighing functions
Research-grade precision balances include built-in weighing functions beyond standard mass measurement: piece counting (estimating the number of identical parts from a known sample weight); percentage deviation weighing (displaying the difference from a target mass as a percentage); formulation mode (guided dispensing of multiple ingredients to target masses with running total); and density determination (Archimedes method via an under-pan hook and optional kit). Confirm which functions are required and built in (not requiring a separate software purchase) for the intended application.
GLP features and connectivity
Precision balances for pharmaceutical QC, food testing, and accredited analytical labs require GLP documentation features: automatic printing of date, time, balance ID, operator ID, calibration status, and weighing result. RS-232 or USB output to a LIMS, balance printer, or PC is standard. For regulated environments, 21 CFR Part 11 software with an electronic audit trail and access control is available on premium models.
&nbsp;
<h2>Specifications Context</h2>
&nbsp;
Precision balance repeatability is specified as the standard deviation of 10 consecutive weighings of the same load at mid-range, typically 0.5 to 1 mg for models with 1 mg readability, and 0.01 to 0.05 g for models with 0.1 g readability. Environmental sensitivity is lower than for analytical balances: a 0.001 g precision balance in a vibration-affected environment may show repeatability of 1 to 5 mg in practice versus 0.5 mg in a stable environment. For the most demanding 1 mg-readability precision balance applications, place the balance on an anti-vibration mat and away from air vents. Pan size selection: precision balances at 1 mg to 0.01 g readability typically have pans of 130 to 200 mm; at 0.1 g readability, pans of 200 to 300 mm accommodate larger vessels.&nbsp;
&nbsp;
Require assistance in selecting the appropriate model? Contact the <a href="https://mbpinc.net/contact-us">MBP team</a> for a tailored quote and professional guidance.

Precision Balances

Precision Balance

Radwag 60Kg Capacity 1g Readability 16x20" Precision Balance

Radwag WLC 60/C2/R (WL-206-0063) — 60 kg capacity, 1 g readability, 16×20 inch stainless steel pan, RS232, internal battery, backlit LCD, IP43. For industrial QC, shipping weight verification, and large-format bulk dispensing.

Model

NTEP certified

Power requirements

Operation time on batteries

Maximum capacity

Minimum load

Readability

Tare range

Repeatability

Linearity

Stabilization time

Protection class

Communication interface

Operating temperature

Relative humidity

Weighting pan dimensions

Package dimensions

Unit/shipping weight

Warranty

<h2>What Are Analytical Balances?</h2>
&nbsp;
An analytical balance is a high-precision weighing instrument that measures mass to a resolution of 0.1 mg (0.0001 g), one tenth of a milligram. The weighing mechanism uses electromagnetic force restoration (EMFR): the weighing pan is suspended by an electromagnet that applies just enough force to maintain the pan in a fixed reference position; the current required to restore this position is proportional to the mass placed on the pan, providing extremely high accuracy and repeatability across the full capacity range. A glass or polycarbonate draft shield enclosing the weighing pan prevents air currents from displacing the pan and introducing measurement errors; at 0.1 mg sensitivity, an air movement of less than 0.1 m/s can produce a reading error of 0.1 mg or more. Analytical balances cover capacities from 80 g (semi-micro models, with 0.01 mg readability in some configurations) to 520 g maximum, which accommodates weighing into standard laboratory glassware, plastic weighing boats, and small containers. They are used in quantitative chemistry (stoichiometric reagent weighing for accurate molarity calculations), pharmaceutical development (API and excipient weighing), environmental analysis (gravimetric filter weighing), food science, and materials research. An analytical balance is required whenever mass accuracy at the 0.0001 g (0.1 mg) level is needed; if the protocol reports mass to three or four decimal places or requires a minimum weighing quantity specification, an analytical balance is the correct instrument.
&nbsp;
<h2>What you will find:</h2>
&nbsp;
<ul>
<li>Analytical balances for high-precision weighing in research, analytical, and quality control laboratories.</li>
<li>Balance series with internal or external calibration options for maintaining measurement accuracy.</li>
<li>Touchscreen analytical balances with advanced weighing functions and intuitive operation.</li>
<li><a href="https://mbpinc.net/equipments/microscopes-balances-and-analytical-equipment/laboratory-balances/analytical-balance/accessories">Analytical Balance Accessories</a>, including precision vacuum gauges for monitoring vacuum levels and supporting laboratory vacuum applications.</li>
</ul>
&nbsp;
<h2>How to Choose an Analytical Balance</h2>
&nbsp;
Readability and accuracy
Readability (resolution, smallest displayable increment) for standard analytical balances is 0.1 mg. Semi-micro balances with 0.01 mg readability are specified for trace weighing, where mass differences of 0.01 mg must be detected, used in pharmaceutical microformulation, impurity weighing, and environmental particulate filter gravimetry. Accuracy (how closely the displayed value matches the true mass) is related to but distinct from readability: a well-maintained, calibrated analytical balance should show repeatability (standard deviation of 10 repeat weighings) of 0.05 mg to 0.1 mg at mid-range loads.
Internal vs. external calibration
Analytical balances with internal calibration contain a motorized calibration weight that deploys automatically when triggered by a temperature change (typically 1.5 to 2 degrees C change), a scheduled time interval, or an operator command. The balance calibrates itself and documents the event without requiring the operator to handle external weights; the preferred configuration for regulated environments and high-throughput labs. Externally calibrated balances require the operator to place a certified external weight on the pan and initiate calibration manually, appropriate for lower-frequency calibration schedules and labs where calibration is an explicitly documented QC step.
Draft shield design
Motorized sliding glass doors that open automatically when a sample is placed near the sensor and close after removal reduce the time the draft shield is open, minimize drafts around the pan during the stability period, and improve operator ergonomics. Manual sliding or hinged doors require the operator to open and close the shield for each weighing, adequate for moderate use but slower in high-throughput environments. Confirm that the door opening dimensions (width and height of the access openings) are sufficient for the weighing vessels used in your workflow.
Capacity and sample vessel compatibility
Choose capacity based on the maximum combined mass of the sample plus any tare container placed on the pan. For analytical chemistry, weighing reagents in 50 mL beakers or weighing boats, 200 g capacity covers most scenarios. For pharmaceutical weighing of larger API or excipient batches, a 520 g capacity with 0.1 mg readability is specified. Never exceed the stated maximum capacity of an analytical balance; even brief overloading can permanently damage the electromagnetic force restoration mechanism.
GLP and GMP compliance features
Analytical balances for regulated pharmaceutical and food testing environments require GLP/GMP compliance features: automatic time and date stamping of each weighing record; user login and operator ID in the printout; balance identification code; calibration status and last calibration date; minimum sample weight display (calculated from balance performance and the USP minimum weight requirement); and connectivity for data export to a LIMS or validated computer system. Confirm that the software and interface meet the regulatory requirements of the intended use.
&nbsp;
<h2>Specifications Context</h2>
&nbsp;
The minimum weighing quantity (MWQ) for an analytical balance is the minimum sample mass that can be weighed with an acceptable relative uncertainty, typically defined as 1000 times the standard deviation of repeatability, per USP 41 chapter 41 and OIML R 111 guidance. For a balance with 0.05 mg standard deviation, the minimum weighing quantity is 50 mg. Samples below this mass have a relative weighing error that exceeds the acceptable limit (commonly 0.1% relative uncertainty). Confirm the balance's MWQ specification for your smallest sample masses, and document this parameter in the balance qualification records for GLP and GMP environments.
&nbsp;
To discuss product availability or get selection guidance,&nbsp;<a href="https://mbpinc.net/contact-us">contact the MBP team</a>.

Analytical Balance

Radwag Analytical Balance R2 Series

Radwag AS R2 PLUS series (SYNERGY LAB): 60 g/0.01 mg (WL-104-1052), 120 g/0.01 mg (WL-104-0191), and 220 g/0.1 mg (WL-104-0177) analytical balances. Auto internal calibration, color touchscreen, RS-232/USB. Made in Poland.

Radwag 60g Capacity 0.01mg Readability Ã¸3.5" Analytical Balance

Radwag 120g Capacity 0.01mg Readability Ã¸3.5" Analytical Balance

Radwag 220g Capacity 0.1mg Readability Ã¸4" Analytical Balance

Radwag Readability 8x8 Precision Balance

Radwag 1000g Capacity 0.001g Readability 5×5" Precision Balance

Radwag 1000g Standard Package

Radwag Precision Balance R2 Series

Radwag PS R2 series MONOBLOCK precision balances — single-point pan fastening minimizes eccentricity error. Three variants: PS 1000.R2 (1,000 g / 0.001 g, 5×5" pan), PS 2100.R2.M (2,100 g / 0.01 g, 8×8" pan), PS 8100.R2.M (8,100 g / 0.1 g).

Radwag 1000g Capacity 0.001g Readability 5x5" Precision Balance

Radwag 2100g Capacity 0.01g Readability 8x8" Precision Balance

Radwag R2 Series 8100g Capacity 0.01g Readability 8x8" Precision Balance

Radwag Readability 5×5″ Precision Balance

Radwag WLC 2/A2 Precision Balance

Radwag WTC precision balances available in 600 g and 2000 g capacities with 0.01 g readability, 128×128 mm pan, RS232/USB connectivity, IP43 rating, and up to 15-hour battery operation.

Radwag 600g Capacity 0.01g Readability 5x5" Precision Balance

Radwag 2000g Capacity 0.01g Readability 5x5" Precision Balance

Radwag Readability 8x8-inch Precision Balance

Radwag 2000g Capacity 0.01g Readability 8x8" Precision Balance

Radwag 2000g Standard Package

Radwag 6000g Capacity 0.1g Readability 8x8" Precision Balance

Radwag 6000g Standard Package

Radwag Readability 8x8" Precision Balance

Radwag WLC series 8×8" stainless steel pan precision balances with backlit LCD and internal rechargeable battery. Three variants: WLC 2/A2 (2,000 g / 0.01 g), WLC 6/A2 (6,000 g / 0.1 g), and WLC 20/A2 (20 kg / 0.1 g).

Radwag 20kg Capacity 0.1g Readability 8x8" Precision Balance

<h2 dir="ltr"> What Are Miscellaneous PCR Items?</h2>
 Miscellaneous Items groups supporting reagents used alongside core PCR enzymes, master mixes, and nucleotide components, covering essential but non-core materials required for PCR and RT-PCR workflows. This includes nuclease-free water for reaction setup and dilution, Random Primer (6N) and Oligo(dT)18 primers for cDNA synthesis, and ionic solutions such as MgCl₂, MgSO₄, NaCl, and MnCl₂ used for reaction optimisation. The category also includes certified nuclease-free water options from suppliers such as BIOLOGIX for sensitive molecular biology applications. Use this category to source essential supporting reagents that complete PCR-based experimental workflows alongside primary amplification products. 
&nbsp;
<h2 data-start="432" data-end="459">What you will find:</h2>
&nbsp;
<ul data-start="461" data-end="1220">
<li data-section-id="b5abnd" data-start="461" data-end="635">Nuclease-Free Water: DNase/RNase-free water suitable for PCR, RT-PCR, qPCR, and nucleic acid preparation workflows, including certified molecular biology-grade options.</li>
<li data-section-id="n5mfl0" data-start="636" data-end="789">Primers &amp; Oligos: Random Primer (6N) and Oligo(dT)18 formats for reverse transcription, cDNA synthesis, and related molecular biology applications.</li>
<li data-section-id="1x29qzm" data-start="790" data-end="932">Reaction Components: Molecular biology-grade MgCl₂, MgSO₄, MnCl₂, and NaCl solutions for reaction preparation and protocol optimisation.</li>
<li data-section-id="16hzrat" data-start="933" data-end="1075">Workflow Support Reagents: Essential supporting materials used alongside PCR enzymes, master mixes, and nucleic acid amplification kits.</li>
<li data-section-id="4t6tsy" data-start="1076" data-end="1220">Research-Ready Formats: Convenient reagent sizes suitable for routine academic, biotechnology, and molecular biology laboratory workflows.</li>
</ul>
<h2 dir="ltr"> How to Choose Miscellaneous PCR Items</h2>
 Gel Loading Dyes Loading dyes add density and colour to PCR products for gel electrophoresis, allowing visual tracking of sample migration. Some 2x master mixes include loading dye pre-formulated, but a separate loading dye is needed when using dye-free master mixes or individual-component PCR setups. PCR Enhancers and Additives Additives such as betaine, DMSO, or proprietary enhancer formulations can improve amplification of GC-rich or otherwise difficult templates by reducing secondary structure or improving primer annealing specificity -- useful as a troubleshooting tool when a standard reaction underperforms on a specific target. Nuclease-Free Water Grade Nuclease-free water is used for reaction dilutions, resuspending primers and probes, and as a no-template control in PCR and qPCR setups. Confirm the water is certified free of detectable RNase and DNase activity, particularly for RNA-handling workflows. PCR Tube and Plate Format PCR tubes, strips, and plates are available in formats matching common thermal cycler block configurations -- 0.2 mL individual tubes, 8-well or 12-well strips, and 96-well plates -- select the format matching your thermal cycler and throughput needs. Compatibility with Primary Reagents When ordering supporting consumables alongside primary PCR reagents, confirming tube/plate compatibility with both your thermal cycler and any downstream automation (liquid handlers, plate readers) avoids workflow bottlenecks from mismatched formats. 
<h2 dir="ltr"> Specifications Context</h2>
&nbsp;
Nuclease-free water used in molecular biology workflows is typically certified through DNase/RNase activity testing and supplied in formats suitable for routine PCR, RT-PCR, and nucleic acid dilution applications. Random Primer (6N) and Oligo(dT)18 primers are used in reverse transcription workflows to support cDNA synthesis from RNA templates. Ionic solutions such as MgCl₂, MgSO₄, NaCl, and MnCl₂ are used to support and optimise polymerase activity under different reaction conditions. Most items in this category are stable under standard laboratory storage conditions, with product-specific handling and storage requirements provided by the manufacturer.
&nbsp;
Ensure your experimental stability&mdash;<a href="https://mbpinc.net/contact-us" style="color: #236fa1;">reach out to the MBP team</a> now for a quote on our expert PCR accessories

Miscellaneous Items

Miscellaneous items

MSDS

Random Primer (6N)

Random Primer (6N) G139 — 10 µM random hexamers in ddH₂O, 500 µl. For reverse transcription cDNA synthesis from total RNA or mRNA. Recommended final concentration: 0.5–1 µM. Store at −20 °C up to 60 months; avoid freeze–thaw cycles.

Unit Quantity

Recommended Protocol

Storage Condition

Shipping condition

<h2 data-section-id="v1drft" data-start="0" data-end="43">What are cloning chemicals and reagents?</h2>
&nbsp;
Cloning chemicals and reagents cover the enzymes, buffers, and molecular biology-grade chemicals used in DNA fragment preparation, modification, and purification within a cloning workflow, including restriction endonucleases, T4 DNA ligase and other DNA-modifying enzymes (phosphatases, polymerases), reaction buffers, and plasmid extraction reagents. Related entities include restriction enzyme digestion, DNA dephosphorylation/phosphorylation, plasmid DNA purification (column-based and magnetic bead-based), and enzyme unit definitions.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif;" role="presentation">Targeted XJa and XJb strains for faster recovery of proteins.</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif;" role="presentation">Mix &amp; Go! solutions for optimized and dependable bacterial transformation.</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif;" role="presentation">Culture Media &amp; Supplements used for yeast research, and include YPD Plus and mating pheromones.</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif;" role="presentation">Extraction and Lysis Reagents include reliable genomic preparation and yeast protein kits.</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif;" role="presentation">Chromogenic Substrates and Enzymatic Inducers with highly pure X-GAL and IPTG for cloning and blue-white screening.</li>
</ul>
&nbsp;
<h2 data-section-id="1daajgc" data-start="866" data-end="913">How to choose cloning chemicals and reagents</h2>
&nbsp;
Restriction enzyme selection and buffer compatibility
Restriction enzymes require specific reaction buffers, and many modern enzyme lines use a single universal buffer compatible across multiple enzymes to simplify double-digest reactions; confirm buffer compatibility when combining enzymes from different suppliers or using older single-buffer-per-enzyme formulations.
Enzyme unit definitions and reaction scale
Restriction enzyme and ligase activity is defined in units per microliter, with one unit typically defined as the amount needed to digest or ligate a defined quantity of standard substrate DNA under specified conditions in a set time; scale enzyme quantity to the amount of DNA being processed rather than assuming a fixed volume works for all reaction sizes.
Plasmid purification grade
Plasmid DNA extraction reagents range from molecular biology grade, suitable for general cloning and sequencing, to transfection-grade or endotoxin-free formulations required for applications such as lentiviral packaging or mammalian cell transfection, where endotoxin contamination can reduce transfection efficiency or cause cell stress.
Dephosphorylation for preventing vector self-ligation
Alkaline phosphatase treatment of a linearized vector before ligation removes 5' phosphate groups, preventing vector self-ligation and improving the ratio of recombinant clones; this step is particularly useful when the vector and insert share compatible sticky ends that could otherwise religate without insert incorporation.
&nbsp;
<h2 data-section-id="1fljvas" data-start="3459" data-end="3484">Specifications context</h2>
&nbsp;
Restriction enzymes and ligases are supplied at defined unit concentrations (commonly 10&ndash;20 units per microliter for restriction enzymes), with reaction buffers formulated for specific pH and salt conditions optimized for enzyme activity. Plasmid purification kits are differentiated by yield (micrograms of DNA recovered), purity (A260/A280 ratio), and endotoxin level (endotoxin units per microgram), with endotoxin-free kits specifying levels below a defined threshold suitable for transfection applications.&nbsp;
This sub-category is part of MBP's cloning catalog alongside ligation independent cloning kits and transformation kits and competent cells, used downstream of enzyme-based fragment preparation. Labs producing custom lentivirus for immortalization can also review MBP's cell immortalization catalog. MBP's specialist team can help confirm enzyme buffer compatibility and plasmid purification grade for a specific downstream application before order placement.
<a href="https://mbpinc.net/contact-us">Contact the expert team </a>at MBP today to request a quote for high-purity chemicals and reagents.

Chemicals/Reagents

DataSheet

Rattler Plating Beads

Rattler Plating Beads by Zymo Research — 4.5 mm solid glass beads for spreading bacteria and yeast on agar plates without a spreader or flame. Reusable after bleach wash and autoclaving. Available as S1001 (1×230 g, sterile), S1001-5 (5×230 g, sterile), and S1001-B (25 kg bulk bag, non-sterile).

Material

Packaging

Product Storage

Rattler™ Plating Beads (230 g Bottle)

Rattler™ Plating Beads (5 x 230 g Bottles)

Rattler™ Plating Beads, Bulk (25 kg Bag)

<h2 dir="ltr">What Are Adenoviral Cloning Vectors?</h2>
 An adenoviral shuttle plasmid (transfer vector) contains a transgene expression cassette flanked by adenoviral genomic sequences that mediate recombination into the full adenoviral backbone genome. This shuttle plasmid is the starting point for constructing any custom recombinant adenovirus. Successful adenoviral studies begin with the appropriate cloning backbone. Choose a vector compatible with your development workflow.
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<h2 dir="ltr">What you will find:</h2>
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pShuttle backbone vectors, including pShuttle(+), pShuttle(-), and pShuttle-His variants for gene insertion and adenoviral construct assembly&nbsp;
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Tagged expression vectors such as pShuttle-His-18x and pShuttle-2A-RFP for co-expression and protein labeling studies
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Functional assay and reporter vectors, including pPromoter and pSiShuttle for transcriptional analysis and gene regulation&nbsp;
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Ready-to-use adenoviral DNA for simplified preparation of constructs
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<h2 dir="ltr"> How to Choose an Adenoviral Cloning Vector</h2>
 Promoter Selection CMV, EF1&alpha;, and CAG promoter options are available for driving transgene expression &mdash; CMV offers strong, broadly active expression, while EF1&alpha; and CAG can provide more consistent expression in certain cell types. Cloning Method Compatibility Gateway-compatible backbones enable site-specific recombination cloning without restriction enzymes, useful for parallel construct generation. Standard multiple cloning sites (MCS) with conventional restriction sites remain available for traditional cloning workflows. Deletion Configuration E1/E3-deleted Ad5 backbones are the standard configuration &mdash; E1 deletion renders the virus replication-deficient, while E3 deletion provides additional cloning capacity. Downstream Production Pathway The shuttle plasmid recombines into the full adenoviral genome during virus production &mdash; selecting a shuttle vector compatible with your packaging cell line and downstream amplification approach avoids compatibility issues later in the workflow. Reporter/Selection Inclusion Shuttle vectors with fluorescent reporters (GFP) or selection markers built into the cassette simplify confirmation of successful cloning and subsequent virus packaging steps. 
<h2 dir="ltr"> Specifications Context</h2>
 After cloning the transgene into an adenoviral shuttle plasmid, the construct is recombined into the full adenoviral backbone genome in packaging systems or recombination-based workflows, followed by amplification in complementing cell lines to generate recombinant adenoviral stocks. Gateway-compatible shuttle vectors enable transfer of validated entry clones into the adenoviral system without re-cloning. Sequence verification of the shuttle construct by restriction analysis or sequencing is recommended before recombination to ensure construct integrity. Product availability reflects MBP&rsquo;s catalogue as of mid-2026. 
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<a href="https://mbpinc.net/contact-us">Contact the expert team </a>at MBP for guidance on shuttle vector selection based on promoter configuration and experimental design requirements.

Cloning Vectors

Selection-Drug Killing Curve

Adenovirus-2-Expression-Protocol

Ready-to-Use Adeno DNA (Pre-linearized by I-Ceul/PI-SceI)

A001 by Applied Biological Materials is Ready-to-Use Adeno DNA pre-linearized with I-CeuI/PI-SceI — no user restriction digest required. Direct ligation with compatible shuttle plasmid inserts for rapid recombinant E1-deleted adenoviral vector construction. Compatible with A003, A008, A020 shuttle vectors. Store at −20°C or below.

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<h2 data-section-id="pdko8n" data-start="0" data-end="50">What are recombinant proteins for cell culture?</h2>
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Recombinant proteins for cell culture are biologically active growth factors, cytokines, and signaling molecules produced using recombinant DNA technology to control specific cellular functions in vitro. Growth factors such as FGF (fibroblast growth factor), EGF (epidermal growth factor), and TGF-&beta; (transforming growth factor beta) regulate cell growth, proliferation, survival, and differentiation. Cytokines including IL-2, IL-7, IL-15, and IL-21 influence immune cell activation, expansion, and function. These proteins are widely used in serum-free and chemically defined media, stem cell and iPSC culture, immune cell expansion, organoid development, hybridoma production, and cell and gene therapy workflows where precise control over cellular signaling is required.
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<h2 dir="ltr">What you will find:</h2>
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<ul>
<li>Includes cytokines, chemokines, growth factors, and signaling proteins to support proliferation, differentiation, and maintenance of&nbsp;mammalian cells</li>
<li>Rat, human, and mouse recombinant proteins compatible with translational research models and diverse mammalian cell culture&nbsp;</li>
<li>Optimizing cell metabolic activity, signalling pathways, and experimental reproducibility in vitro using recombinant proteins&nbsp;</li>
<li>Suitable for organoid development, expansion of cells, activation of immune cells, neuronal studies, and protein expression workflow optimization.</li>
</ul>
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<h2 data-section-id="4x59d8" data-start="1050" data-end="1118">How to choose recombinant proteins, cytokines, and growth factors</h2>
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Quality grade: RUO vs. preclinical vs. GMP
Research-use-only (RUO) proteins are suitable for most academic and industrial research applications. Preclinical-grade proteins provide enhanced documentation and quality control for studies supporting clinical development. GMP-grade proteins are manufactured under controlled quality systems with complete traceability and lot-to-lot bioactivity verification, making them appropriate for cell therapy, gene therapy, and other regulated applications.
Expression system and post-translational modifications
The production system can significantly affect protein activity. HEK293 and other mammalian expression systems preserve native human post-translational modifications such as glycosylation and phosphorylation, which are often necessary for full biological function. Bacterial expression systems such as E. coli may offer lower cost and higher yields but cannot reproduce many of these modifications.
Carrier-free formulation
Carrier-free recombinant proteins are formulated without stabilizing proteins such as bovine serum albumin (BSA). This eliminates potential experimental interference from carrier proteins and supports serum-free, animal-component-free, and GMP-compatible workflows. Carrier-free formulations are especially important when studying sensitive signaling pathways or developing clinical manufacturing processes.
Endotoxin level and purity
Endotoxins can stimulate inflammatory responses and alter cell behavior, particularly in immune cell cultures. For T-cell expansion, stem cell culture, and other sensitive applications, low-endotoxin or endotoxin-free proteins with documented purity above 95% are preferred to ensure reproducible results.
Stability format: standard vs. thermostable
Standard recombinant proteins gradually lose activity during prolonged incubation at 37&deg;C. Thermostable variants, such as engineered FGF2 formulations, maintain biological activity for longer periods and reduce the need for frequent media supplementation. These products can improve workflow efficiency in stem cell maintenance and differentiation protocols.
Storage and reconstitution
Lyophilized recombinant proteins offer extended shelf life and are typically stored frozen until use. After reconstitution, proteins should be aliquoted into single-use portions whenever possible to minimize repeated freeze-thaw cycles that can reduce activity. Proper storage conditions vary by product and should follow the manufacturer's recommendations.
<h2 data-section-id="rxnuuy" data-start="3659" data-end="3704">&nbsp;</h2>
<h2 data-section-id="1fljvas" data-start="4451" data-end="4476">Specifications context</h2>
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Modern recombinant cytokines and growth factors are available in a wide range of formats including carrier-free, low-endotoxin, animal-component-free, and GMP-grade formulations. Many GMP-grade cytokines such as IL-2, IL-7, IL-15, and IL-21 undergo lot-specific bioactivity testing using validated reference standards to ensure consistent biological performance. Mammalian-cell-expressed proteins are increasingly preferred for applications requiring native structure and maximum biological activity.
As of 2026, carrier-free, low-endotoxin recombinant proteins produced in mammalian expression systems have become the preferred choice for stem cell culture, immune cell expansion, organoid development, and advanced biomanufacturing workflows.
For basal media used alongside recombinant proteins, see Classic Media. For additional supplementation reagents, see Cell Culture Supplements &amp; Additives. Browse Mammalian Cell Culture for the broader category.
<a href="https://mbpinc.net/contact-us">Contact the expert team</a> at MBP today and get optimized recombinant proteins for your lab.

Recombinant Proteins

Growth Factor-eFlyer

Growth Factors and Cytokines-Brochure

Growth Factors and Cytokines-FAQ

Role of Growth Factors in Cell Differentiation-Poster

Recombinant Human 4-1BB Receptor (TNFRSF9)

Z101085 by Applied Biological Materials is recombinant human 4-1BB Receptor (TNFRSF9/CD137), expressed in E. coli and purified to >95% by SDS-PAGE. This 18 kDa co-stimulatory TNF receptor has an ED50 of &lt;0.5 ng/mL in a cell-based proliferation assay. Endotoxin &lt;1.0 EU/µg; lyophilized from PBS pH 7.5; reconstitute in distilled water at ≥0.1 mg/mL.

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Recombinant Human 4-1BB Receptor (TNFRSF9), 20 µg

Recombinant Human 4-1BB Receptor (TNFRSF9), 1.0 mg

Recombinant Human 4-BBL (TNFSF9)

Recombinant Human 4-BBL/CD137L (Z102255) by ABM — 19.6 kDa E. coli-expressed TNFSF9, >95% pure, 4-1BB T-cell co-stimulatory ligand, <1.0 EU/µg. Order from MBP INC.