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Sigma-Aldrich

Coomassie protein assay reagent

MDL number:
PubChem Substance ID:
NACRES:
NA.21

form

liquid

Quality Level

density

~1.31 g/mL at 20 °C

storage temp.

2-8°C

SMILES string

[Na+].CCOc1ccc(Nc2ccc(cc2)C(\c3ccc(cc3C)N(CC)Cc4cccc(c4)S([O-])(=O)=O)=C5/C=CC(\C=C5C)=[N+](\CC)Cc6cccc(c6)S([O-])(=O)=O)cc1

InChI

1S/C47H49N3O7S2.Na/c1-6-49(31-35-11-9-13-43(29-35)58(51,52)53)40-21-25-45(33(4)27-40)47(37-15-17-38(18-16-37)48-39-19-23-42(24-20-39)57-8-3)46-26-22-41(28-34(46)5)50(7-2)32-36-12-10-14-44(30-36)59(54,55)56;/h9-30H,6-8,31-32H2,1-5H3,(H2,51,52,53,54,55,56);/q;+1/p-1

InChI key

RWVGQQGBQSJDQV-UHFFFAOYSA-M

General description

Coomassie protein assay reagent is a protein analysis reagent used for the determination of total protein concentration. The Coomassie dye in the Coomassie (Bradford) reagent binds to protein in the sample leading to an immediate shift in absorption with a concomitant color change of the solution from red to blue. This spectrophotometric measurement of the intensity of this resulting blue color is used to determine the concentration of protein in solutions.

Packaging

250 mL in glass bottle

Application

Suitable for the determination of protein according to Bradford. Five-fold concentrate for tests in microtiter plates; ten-fold concentrate for tests in photometric cuvettes (d=1cm); dilute with H2O

Legal Information

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Met. Corr. 1 - Skin Corr. 1B - STOT SE 1

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

109.4 °F

Flash Point(C)

43 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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