This category covers everyday reagents for molecular and cell biology work. It includes buffers and buffer components such as Tris base, MOPS, CAPS, Bicine, glycine, 0.5 M EDTA solution at pH 8.0 and PBS tablets; detergents including Triton X-100, Tween 20, Tween 80, CHAPS and sodium deoxycholate; bovine serum albumin as Fraction V powder and 20 mg/ml solution; polymers like PEG 1000, PEG 8000 and Ficoll 400; and DNase- and RNase-free molecular biology grade water, along with enzymes, cofactors and amino acids. Pack sizes run from milligrams to kilograms and from milliliters to multi-liter containers.

Check the grade first: molecular biology grade material is tested for nucleases, while ultra pure and reagent grades are defined by each manufacturer's specification. Then compare purity, form (powder, solution or tablet), pack size against how fast you use the material, and storage conditions. Review the SDS before use and request a Certificate of Analysis when you need lot-level records.

Molecular Biology Reagents: common questions

What are life science or biological reagents?

Biological or life science reagents are the chemicals and biological materials used to prepare, grow, separate or analyze cells, proteins and nucleic acids. Examples include buffers, detergents, salts, proteins such as BSA, enzymes, nucleotides and cofactors, and specially purified water. They are graded by purity and testing, which determines whether they suit routine work or sensitive applications.

What does molecular biology grade mean?

Molecular biology grade generally means the material has been tested for, and found free of detectable, DNase, RNase and often protease activity, so it will not degrade DNA, RNA or proteins in your samples. The exact tests vary by manufacturer, so check the specification sheet or Certificate of Analysis for what was tested and the limits used.

What is a lyophilized reagent?

A lyophilized reagent has been freeze-dried: frozen, then dried under vacuum so the water sublimes. The dry product is usually more stable in storage and shipping than a liquid. Before use it is reconstituted with the volume and type of liquid the manufacturer specifies. After reconstitution, follow the stated storage conditions and shelf life.

Can I get pricing for bulk quantities of reagents?

Yes. Volume and quote pricing is available through the Contact Us page, and approved business accounts can pay by purchase order. Chemicals ship only to business addresses, with a company name required at checkout. Many items ship directly from the manufacturer, so lead times vary by item.

Molecular Biology Reagents

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  1. Trans-Cinnamic Acid, B-Phenylacrylic acid, 25 Grams CAS# -642549
    Manufacturer: Research Products International
    Mol. Wt:148.2 Common Name: B-Phenylacrylic acid Formula: C9H8O2 Dimensions: 1.63 x 3.00 x 1.63, Weight: 0.22, Cas#: -642549 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $30.65
  2. Myricetin, 250 MG CAS# 529-44-2
    Manufacturer: Research Products International
    Product usually ships within 24 hours. This product is sold for laboratory research only. Mol. Wt:318.24 Common Name: Formula: C15H10O8 Dimensions: 1.25 x 1.75 x 1.25, Weight: 0.03, Cas#: 529-44-2 Research or further manufacturing use only, not for food (1 per EA)
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    $705.15
  3. DL-Isoleucine, 100 Grams CAS# 443-79-8
    Manufacturer: Research Products International
    Mol. Wt:131.17 Common Name: Formula: C6H13NO2 Dimensions: 3.38 x 4.63 x 3.38, Weight: 0.13, Cas#: 443-79-8 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $374.85
  4. Coenzyme A Trilithium Salt, 250 MG CAS# 18439-24-2
    Manufacturer: Research Products International
    Product usually ships within 24 hours. This product is sold for laboratory research use only. Mol. Wt:785.4 Common Name: Formula: C21H33N7O16P3SLi3 Dimensions: 1.25 x 1.75 x 1.25, Weight: 0.06, Cas#: 18439-24-2 Research or further manufacturing use only (1 per EA)
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    $665.15
  5. Triton Lysis Buffer Solution, 500 Milliliters
    Manufacturer: Research Products International
    Dimensions: 2.75 x 6.75 x 2.75 Weight: 0.27 - Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $160.35
  6. 5-Bromo-2'-Deoxyuridine, 1 Gram CAS# 59-14-3
    Manufacturer: Research Products International
    Mol. Wt:307.1 Common Name: Formula: C9H11BrN2O5 Dimensions: 1.25 x 1.75 x 1.25, Weight: 0.03, Cas#: 59-14-3 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $83.45
  7. Pepstatin A, 100 MG CAS# 8913806
    Manufacturer: Research Products International
    Mol. Wt:685.9 Common Name: Formula: C34H63N5O9 Dimensions: 1.25 x 1.75 x 1.25, Weight: 0.03, Cas#: 8913806 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $833.10
  8. Coelenterazine-H, 10 MG CAS# 50909-86-9
    Manufacturer: Research Products International
    Mol. Wt:407.5 Common Name: Formula: C26H21N3O2 Dimensions: 1.25 x 1.75 x 1.25, Weight: 0.03, Cas#: 50909-86-9 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $805.30
  9. Coenzyme A, 100 MG CAS# 85-61-0
    Manufacturer: Research Products International
    Mol. Wt:767.5 Common Name: Formula: C21H36N7O16P3S Dimensions: 1.25 x 1.75 x 1.25, Weight: 0.03, Cas#: 85-61-0 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $304.75
  10. Digitonin, 500 MG CAS# 11024-24-1
    Manufacturer: Research Products International
    Mol. Wt:1229.3 Common Name: Formula: C56H92O29 Dimensions: 1.25 x 1.75 x 1.25, Weight: 0.03, Cas#: 11024-24-1 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $764.15
  11. Dicamba, 250 MG CAS# 1918-00-9
    Manufacturer: Research Products International
    Product usually ships within 3-5 days. This product is sold for laboratory research use only. Mol. Wt:221.04 Common Name: 3,6-Dichloro-o-anisic acid Formula: C8H6Cl2O3 Dimensions: 1.25 x 1.75 x 1.25, Weight: 0.03, Cas#: 1918-00-9 Research or further ma (1 per EA)
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    $198.65
  12. MOPS [3-(N-morpholino)-propanesulfonic acid], 5 Kilograms CAS# 1132-61-2
    Manufacturer: Research Products International
    Mol. Wt:209.3 Common Name: 3-(N-Morpholino)propanesulfonic acid Formula: C7H15NO4S Dimensions: 10.00 x 7.50 x 10.00, Weight: 12.4, Cas#: 1132-61-2 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $859.20
  13. Bluo-Gal, 5-Bromo-3-indolyl-B-D-galactopyranoside, 5 Grams CAS# 97753-82-7
    Manufacturer: Research Products International
    Protect from light and moisture. Purity: >98% Soluble in: DMSO and DMFO Store at: -20°C Allow to warm to room temperature before using. Product usually ships within 24 hours. This product is sold for laboratory research use only. Mol. Wt:374.2 Common Name (1 per EA)
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    $1,550.70
  14. Pepstatin A, 10 MG CAS# 8913806
    Manufacturer: Research Products International
    Mol. Wt:685.9 Common Name: Formula: C34H63N5O9 Dimensions: 1.25 x 1.75 x 1.25, Weight: 0.03, Cas#: 8913806 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $97.05
  15. ACES, N-, 2-Acetamido, -2-aminoethane, 500 Grams CAS# 7365-82-4
    Manufacturer: Research Products International
    Mol. Wt:182.2 Common Name: N-(2-Acetamido)-2-aminoethane Formula: C4H10N2O4S Dimensions: 3.50 x 7.00 x 3.50, Weight: 1.24, Cas#: 7365-82-4 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $344.20
  16. Aprotinin, 50 MG CAS# 9087-70-1
    Manufacturer: Research Products International
    Mol. Wt:6512 Common Name: Formula: C284H432N84O79S7 Dimensions: 1.25 X 1.75 X 1.25, Weight: 0.03, Cas#: 9087-70-1 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $489.50
  17. PIPES FREE ACID ULTRAPURE, 250 GM CAS# 5625-37-6
    Manufacturer: Research Products International
    Mol. Wt:302.4 Common Name: Piperazine-N-N'-bis(2-ethanesulfonic acid) Formula: C8H18N2O6S2 Dimensions: 3.50 x 3.75 x 3.50, Weight: 0.65, Cas#: 5625-37-6 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $246.90
  18. Trifluralin, 250 MG CAS# -115895
    Manufacturer: Research Products International
    Soluble in acetone Store at room temperature Cas No.?1582-09-8 Usually ships within 3-5 days. This product is sold for laboratory research use only. Mol. Wt:335.3 Common Name: a-a-a-Trifluoro-2,6,dinitro- -N,N-dipropyl-P-toluidine Formula: C13H16F3N3O4 (1 per EA)
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    $268.45
  19. Triethanolamine, Free Base, 2,2',2in-Nitrilothriethanol, 4 Liter CAS# 102-71-6
    Manufacturer: Research Products International
    Mol. Wt:149.2 Common Name: 2,2',2"-Nitrilothriethanol Formula: C6H15NO3 Dimensions: 6.75 x 11.50 x 3.50, Weight: 0.11, Cas#: 102-71-6 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $328.60
  20. Sodium Diatrizoate Dihydrate, 25 Grams CAS# 737-31-5
    Manufacturer: Research Products International
    Mol. Wt:671.9 Common Name: Formula: C11H8I3N2NaO4 - 2H2O Dimensions: 1.63 x 3.00 x 1.63, Weight: 0.5, Cas#: 737-31-5 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $55.05
  21. Leupeptin Hemisulfate, 100 MG CAS# 103476-89-7
    Manufacturer: Research Products International
    Mol. Wt:475.6 Common Name: Formula: C20H38N6O4 - 1/2H2SO4 Dimensions: 3.38 x 4.63 x 3.38, Weight: 0.11, Cas#: 103476-89-7 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $620.30
  22. 2'-Deoxycytidine Hydrochloride, 25 Grams CAS# 3992-42-5
    Manufacturer: Research Products International
    Product usually ships within 24 hours. This product is sold for laboratory research use only. Mol. Wt:263.68 Common Name: Formula: C9H13N3O4 Dimensions: 1.63 x 3.00 x 1.63, Weight: 0.22, Cas#: 3992-42-5 Research or further manufacturing use only, not fo (1 per EA)
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    $550.20
  23. D-Melibiose Monohydrate, 500 Grams CAS# 585-99-9
    Manufacturer: Research Products International
    Product usually ships within 24 hours. This product is sold for laboratory research use only. Mol. Wt:360.31 Common Name: Formula: C12H22O11-H2O Dimensions: 1.62 x 3.00 x 1.62, Weight: 0.22, Cas#: 585-99-9 Research or further manufacturing use only, not (1 per EA)
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    $6,685.15
  24. PEPSTATIN A, 250 MG CAS# 8913806
    Manufacturer: Research Products International
    Mol. Wt:685.9 Common Name: Formula: C34H63N5O9 Dimensions: 1.25 x 1.75 x 1.25, Weight: 0.03, Cas#: 8913806 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $1,937.75
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