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. TRIS Ultra PC, 1 Kilogram CAS# 77-86-1
    Manufacturer: Research Products International
    Mol. Wt:121.14 Common Name: [Tris (Hydroxymethyl) Aminomethane] [Tromethamine] Formula: C4H11NO3 Dimensions: 4.88 x 6.00 x 4.88, Weight: 2.41, Cas#: 77-86-1 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $191.00
  2. Lithium Dodecyl Sulfate, LDS, 500 Grams CAS# 2044-56-6
    Manufacturer: Research Products International
    Mol. Wt:272.33 Common Name: LDS Formula: C12H25LiO4S Dimensions: 3.50 x 7.00 x 3.50, Weight: 1.24, Cas#: 2044-56-6 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $640.15
  3. L-Cystine, Dihydrochloride, 1 Kilograms CAS# 10601352
    Manufacturer: Research Products International
    Mol. Wt:313.2 Common Name: Formula: C6H12N2O4S2 - 2HCl Dimensions: 4.88 x 7.25 x 4.88, Weight: 2.42, Cas#: 10601352 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $535.20
  4. Pyruvic Acid Sodium Salt, Sodium Pyruvate, 2.5 Kilograms CAS# 113-24-6
    Manufacturer: Research Products International
    Mol. Wt:110.04 Common Name: Sodium Pyruvate Formula: C3H3NaO3 Dimensions: 8.13 x 7.25 x 8.13, Weight: 6.23, Cas#: 113-24-6 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $620.30
  5. Fluridon, 250 MG CAS# 59756-60-4
    Manufacturer: Research Products International
    Slightly soluble in methanol and diethylether. Store at 0-5°C Cas No.?59756-60-4 Product This product is sold for laboratory research use only. Mol. Wt:329.3 Common Name: Formula: C19H14F3N2O2 Dimensions: 1.25 x 1.75 x 1.25, Weight: 0.03, Cas#: 59756-60- (1 per EA)
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    $373.15
  6. Potassium Acetate, 2.5 Kilograms CAS# -647360
    Manufacturer: Research Products International
    Mol. Wt:98.14 Common Name: Formula: C2H3O2K Dimensions: 8.13 x 7.25 x 8.13, Weight: 6.23, Cas#: -647360 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $215.95
  7. Pepstatin A, 25 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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    $231.00
  8. L-Cystine, 1 Kilograms CAS# 56-89-3
    Manufacturer: Research Products International
    Product usually ships within 24 hours. This product is sold for laboratory research use only. Mol. Wt:240.3 Common Name: Formula: C6H12N2O4S2 Dimensions: 8.13 x 7.25 x 8.13, Weight: 2.9, Cas#: 56-89-3 Research or further manufacturing use only, not for (1 per EA)
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    $189.85
  9. D-Glucuronic Acid Sodium Salt Monohydrate, 25 Grams CAS# 207300-70-7
    Manufacturer: Research Products International
    Mol. Wt:234.14 Common Name: Formula: C6H9NaO7 - H2O Dimensions: 1.63 x 3.00 x 1.63, Weight: 0.25, Cas#: 207300-70-7 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $112.40
  10. Mycophenolic Acid, 100 MG CAS# 24280-93-1
    Manufacturer: Research Products International
    Purity: >95% Soluble in methnol. Store at 0-5°C Cas No.?24280-93-1 Usually ships within 24 hours. This product is sold for laboratory research use only. Mol. Wt:320.3 Common Name: Formula: C17H20O6 Dimensions: 1.25 x 1.75 x 1.25, Weight: 0.03, Cas#: 242 (1 per EA)
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    $182.50
  11. PMSF, Phenylmethylsulfonyl fluoride, 5 Grams CAS# 329-98-6
    Manufacturer: Research Products International
    Mol. Wt:174.2 Common Name: Phenylmethylsulfonyl fluoride Formula: C7H7FO2S Dimensions: 1.00 x 3.00 x 1.00, Weight: 0.12, Cas#: 329-98-6 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $61.60
  12. PPT, 250 MG CAS# 77182-82-2
    Manufacturer: Research Products International
    Mol. Wt:198.2 Common Name: PPT Formula: C5H15N2O4P Dimensions: 3.38 x 4.63 x 3.38, Weight: 0.11, Cas#: 77182-82-2 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $285.20
  13. 2'-Deoxycytidine Hydrochloride, 5 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: 3.38 x 4.63 x 3.38, Weight: 0.12, Cas#: 3992-42-5 Research or further manufacturing use only, not fo (1 per EA)
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    $137.10
  14. PHLOROGLUCINOL, 1,3,5-THRIHYDROXYBENZENE, , 100 GM CAS# 108-73-6
    Manufacturer: Research Products International
    Mol. Wt:126.1 Common Name: 1,3,5-Trihydroxybenzene Formula: C6H6O3 Dimensions: 3.50 x 3.75 x 3.50, Weight: 0.32, Cas#: 108-73-6 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $107.55
  15. 2'-Deoxycytidine Hydrochloride, 1 Gram 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: 1.25 x 1.75 x 1.25, Weight: 0.03, Cas#: 3992-42-5 Research or further manufacturing use only, not fo (1 per EA)
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    $50.80
  16. FK-506, 25 MG CAS# 104987-11-3
    Manufacturer: Research Products International
    Mol. Wt:804.0 g/mol Common Name: [Tacrolimus] [Fujimycin] Formula: C44H69NO12 Dimensions: 1.25 x 1.75 x 1.25, Weight: 0.03, Cas#: 104987-11-3 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $250.00
  17. AMP, Adenosine-5-Monophosphate, Free Acid, 10 Grams 18422-05-4
    Manufacturer: Research Products International
    Dimensions: 3.38 x 4.63 x 3.38, Weight: 0.31, Cas#: 16178-48-6 Research or further manufacturing use only, not for food or drug use. (1 per EA )
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    $125.15
  18. L-Lysine Monohydrate, 500 Grams CAS# 13793727
    Manufacturer: Research Products International
    Mol. Wt:164.21 Common Name: Formula: C6H14N2O2-H2O Dimensions: 3.50 x 7.00 x 3.50, Weight: 1.24, Cas#: 13793727 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $489.50
  19. Acid Fuchsin Calcium Salt, 25 Grams CAS# 123334-10-1
    Manufacturer: Research Products International
    Mol. Wt:579.64 Common Name: Formula: C20H17N3O9S3Ca Dimensions: 1.63 x 3.00 x 1.63, Weight: 0.25, Cas#: 123334-10-1 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $88.55
  20. Sodium Diatrizoate Dihydrate, 100 Grams CAS# 737-31-5
    Manufacturer: Research Products International
    Mol. Wt:671.9 Common Name: Formula: C11H8I3N2NaO4 - 2H2O Dimensions: 3.50 x 3.75 x 3.50, Weight: 0.32, Cas#: 737-31-5 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $164.60
  21. 6-Phosphogluconic Acid Trisodium Salt Dihydrate, 500 MG CAS# 53411-70-4
    Manufacturer: Research Products International
    Mol. Wt:378.1 Common Name: Formula: C6H10Na3O10P - 2H2O Dimensions: 1.25 x 1.75 x 1.25, Weight: 0.03, Cas#: 53411-70-4 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $275.55
  22. ACES, N-, 2-Acetamido, -2-aminoethane, 100 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 3.75 x 3.50, Weight: 0.32, Cas#: 7365-82-4 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $109.00
  23. Bluo-Gal, 5-Bromo-3-indolyl-B-D-galactopyranoside, 1 Gram 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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    $348.20
  24. L-Aspartic Acid Monopotassium Salt, 250 Grams CAS# 1115-63-5
    Manufacturer: Research Products International
    Mol. Wt:171.2 Common Name: Formula: C4H6KNO4 Dimensions: 3.50 x 3.75 x 3.50, Weight: 0.65, Cas#: 1115-63-5 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $171.40
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