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.
Related categories: Tissue Culture · PCR Supplies · Dyes and Stains · Antibiotics · Electrophoresis · Cell Culture Media · DNA Reagents · Cell Spreaders, Strainers · All Life Science
Top brands: Research Products International · Spectrum Chemical · 710 Spirits Rocky Mtn Reagents
Popular Molecular Biology Reagents:
Molecular Biology Reagents
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L-Phenylalanine, 1 Kilogram CAS# 63-91-2SKU: P20260-1000.0-EAManufacturer: Research Products InternationalMol. Wt:165.2 Common Name: Formula: C9H11NO2 Dimensions: 4.88 x 6.00 x 4.88, Weight: 2.4, Cas#: 63-91-2 Research or further manufacturing use only, not for food or drug use. (1 per EA)Learn More$489.50 -
L-Lysine Acetate, 500 Grams CAS# 57282-49-2SKU: L37020-500.0-EAManufacturer: Research Products InternationalMol. Wt:206.2 Common Name: Formula: C8H18N2O4 Dimensions: 3.50 x 7.00 x 3.50, Weight: 1.24, Cas#: 57282-49-2 Research or further manufacturing use only, not for food or drug use. (1 per EA)Learn More$453.75 -
L-Isoleucine, 1 Kilogram CAS# 73-32-5SKU: I54020-1000.0-EAManufacturer: Research Products InternationalMol. Wt:131.18 Common Name: Formula: C6H13NO2 Dimensions: 4.88 x 7.25 x 4.88, Weight: 2.4, Cas#: 73-32-5 Research or further manufacturing use only, not for food or drug use. (1 per EA)Learn More$1,097.30 -
Blotto-Tween 20 Blocking Solution in TBS with Azide, 500 MillilitersSKU: B81000-500.0-EAManufacturer: Research Products InternationalDimensions: 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)Learn More$307.35 -
URACIL, 250 GRAMS CAS# 66-22-8SKU: U32000-250.0-EAManufacturer: Research Products InternationalMol. Wt:112.09 Common Name: Formula: C4H4N2O2 Dimensions: 4.88 x 6.00 x 4.88, Weight: 0.75, Cas#: 66-22-8 Research or further manufacturing use only, not for food or drug use. (1 per EA)Learn More$137.10 -
Potassium Phosphate, Dibasic, 25 Kilograms CAS# 7758-11-4SKU: P41300-25000.0-EAManufacturer: Research Products InternationalMol. Wt:174.2 Common Name: Formula: K2HPO4 Dimensions: 13.50 x 13.00 x 16.50, Weight: 60, Cas#: 7758-11-4 Research or further manufacturing use only, not for food or drug use. (1 per EA)Learn More$1,814.90 -
SODIUM ACETATE, ANHYDROUS, 5 KILOGRAM CAS# -647328SKU: S22040-5000.0-EAManufacturer: Research Products InternationalMol. Wt:82 Common Name: Formula: C2H3O2Na Dimensions: 10.00 x 7.50 x 10.00, Weight: 12.4, Cas#: -647328 Research or further manufacturing use only, not for food or drug use. (1 per EA)Learn More$318.40 -
Adenine Sulfate, Adenine Hemisulfate Salt, 100 Grams CAS# 321-30-2SKU: A12575-100.0-EAManufacturer: Research Products InternationalProduct usually ships within 24 hours. This product is sold for laboratory research use only. Mol. Wt:202.18 Common Name: Adenine hemisulfate salt Formula: C5H5N5 Dimensions: 3.50 x 3.75 x 3.50, Weight: 0.32, Cas#: 321-30-2 Research or further manufactur (1 per EA)Learn More$282.35 -
L-Arginine Monohydrochloride, 5 Kilograms CAS# 1119-34-2SKU: A50400-5000.0-EAManufacturer: Research Products InternationalMol. Wt:210.7 Common Name: Formula: C6H14N4O2 - HCl Dimensions: 10.00 X 11.25 X 10.00, Weight: 12, Cas#: 1119-34-2 Research or further manufacturing use only, not for food or drug use. (1 per EA)Learn More$1,302.45 -
Thymine, 1 Kilogram CAS# 65-71-4SKU: T38400-1000.0-EAManufacturer: Research Products InternationalMol. Wt:126.11 Common Name: Formula: C5H6N2O2 Dimensions: 4.88 x 6.00 x 4.88, Weight: 2.13, Cas#: 65-71-4 Research or further manufacturing use only, not for food or drug use. (1 per EA)Learn More$1,936.35 -
HEPES, Free Acid, N-, 2-Hydroxyethyl, piperazine N'-, 2-ethanesulfonic acid, , 5 Kilograms CAS# 7365-45-9SKU: H75030-5000.0-EAManufacturer: Research Products InternationalMol. Wt:238.3 Common Name: [N-(2-Hydroxyethyl) piperazine N'-(2-ethanesulfonic acid)] Formula: C8H18N2O4S Dimensions: 10.00 x 7.50 x 10.00, Weight: 12.4, Cas#: 7365-45-9 Research or further manufacturing use only, not for food or drug use. (1 per EA)Learn More$1,266.10 -
Coelenterazine, Native, 10 MG CAS# 55779-48-1SKU: C70900-0.01-EAManufacturer: Research Products InternationalMol. Wt:423.5 Common Name: Formula: C26H21N3O3 Dimensions: 1.25 x 1.75 x 1.25, Weight: 0.03, Cas#: 55779-48-1 Research or further manufacturing use only, not for food or drug use. (1 per EA)Learn More$356.70 -
L-SERINE, 500 GRAM CAS# 56-45-1SKU: S22020-500.0-EAManufacturer: Research Products InternationalMol. Wt:105.1 Common Name: Formula: C3H7NO3 Dimensions: 3.50 x 7.00 x 3.50, Weight: 1.24, Cas#: 56-45-1 Research or further manufacturing use only, not for food or drug use. (1 per EA)Learn More$472.75 -
Imidazole, Glyoxaline, 1,3-Diaza-2-,4-cyclopentadiene, 1 Kilogram CAS# 288-32-4SKU: I52000-1000.0-EAManufacturer: Research Products InternationalMol. Wt:68.1 Common Name: [Glyoxaline] [1,3-Diaza-2,4-cyclopentadiene] Formula: C3H4N2 Dimensions: 4.88 x 7.25 x 4.88, Weight: 2.42, Cas#: 288-32-4 Research or further manufacturing use only, not for food or drug use. (1 per EA)Learn More$578.30 -
FK-506, 5 MG CAS# 104987-11-3SKU: F22100-0.005-EAManufacturer: Research Products InternationalMol. 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)Learn More$64.15 -
L-SERINE, 100GM CAS# 56-45-1SKU: S22020-100.0-EAManufacturer: Research Products InternationalMol. Wt:105.1 Common Name: Formula: C3H7NO3 Dimensions: 3.50 x 3.75 x 3.50, Weight: 0.32, Cas#: 56-45-1 Research or further manufacturing use only, not for food or drug use. (1 per EA)Learn More$99.90 -
MUG, 250 MG CAS# 6160-80-1SKU: M65900-0.25-EAManufacturer: Research Products InternationalMol. Wt:406.4 Common Name: 4-Methylumbelliferyl-β-D-glucuronide Trihydrate Formula: C16H16O9-3H2O Dimensions: 3.38 x 4.63 x 3.38, Weight: 0.11, Cas#: 6160-80-1 Research or further manufacturing use only, not for food or drug use. (1 per EA)Learn More$137.10 -
L-Aspartic Acid Monopotassium Salt, 1 Kilogram CAS# 1115-63-5SKU: A52100-1000.0-EAManufacturer: Research Products InternationalMol. Wt:171.2 Common Name: Formula: C4H6KNO4 Dimensions: 4.88 X 6.00 X 4.88, Weight: 2.4, Cas#: 1115-63-5 Research or further manufacturing use only, not for food or drug use. (1 per EA)Learn More$677.35 -
L-Glutamic Acid Potassium Salt Monohydrate, 100 Grams CAS# 6382-01-0SKU: G25200-100.0-EAManufacturer: Research Products InternationalMol. Wt:203.23 Common Name: Formula: C5H8KNO4 - H2O Dimensions: 3.50 x 3.75 x 3.50, Weight: 0.32, Cas#: 6382-01-0 Research or further manufacturing use only, not for food or drug use. (1 per EA)Learn More$44.55 -
Potassium Tellurite, 100 Grams CAS# 7790-58-1SKU: P98220-100.0-EAManufacturer: Research Products InternationalMol. Wt:253.79 Common Name: Formula: K2O3Te Dimensions: 3.50 x 3.75 x 3.50, Weight: 0.25, Cas#: 7790-58-1 Research or further manufacturing use only, not for food or drug use. (1 per EA)Learn More$1,191.50 -
n-Octylglucoside [n-Octyl-B-D-glucopyranoside], 5 Grams CAS# 29836-26-8SKU: N02007-5.0-EAManufacturer: Research Products InternationalMol. Wt:292.4 Common Name: n-Octyl-β-D-glucopyranoside Formula: C14H28O6 Dimensions: 3.38 x 4.63 x 3.38, Weight: 0.11, Cas#: 29836-26-8 Research or further manufacturing use only, not for food or drug use. (1 per EA)Learn More$296.00 -
HEPES, Free Acid, N-, 2-Hydroxyethyl, piperazine N'-, 2-ethanesulfonic acid, , 50 Grams CAS# 7365-45-9SKU: H75030-50.0-EAManufacturer: Research Products InternationalMol. Wt:238.3 Common Name: [N-(2-Hydroxyethyl) piperazine N'-(2-ethanesulfonic acid)] Formula: C8H18N2O4S Dimensions: 2.00 x 3.88 x 2.00, Weight: 0.39, Cas#: 7365-45-9 Research or further manufacturing use only, not for food or drug use. (1 per EA)Learn More$61.60 -
L-Asparagine, Anhydrous, 1 Kilogram CAS# 70-47-3SKU: A50035-1000.0-EAManufacturer: Research Products InternationalMol. Wt:132.1 Common Name: Formula: C4H8N2O3 Dimensions: 4.88 x 7.25 x 4.88, Weight: 2.4, Cas#: 70-47-3 Research or further manufacturing use only, not for food or drug use. (1 per EA)Learn More$275.55 -
PIPES SODIUM SALT, 1 KILOGRAM CAS# 10010-67-0SKU: P40150-1000.0-EAManufacturer: Research Products InternationalMol. Wt:324.35 Common Name: Piperazine-N,N'-bis(2-ethanesulfonic acid) sodium salt Formula: C8H17N2NaO6S2 Dimensions: 4.88 x 7.25 x 4.88, Weight: 2.42, Cas#: 10010-67-0 Research or further manufacturing use only, not for food or drug use. (1 per EA)Learn More$674.20
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