Description
DTNB;
 5,5'-Dithio-bis(2-nitrobenzoic acid); Ellman’s Reagent; 3-Carboxy-4-nitrophenyl disulfide 
 MOLECULAR BIOLOGY GRADE
 C14H8N2O8S2
 MW: 396.36 g/mol
 PubChem Chemical ID:  6254
 Yellow crystalline powder that is used for the colorimetric determination of thiol groups in biological samples. DTNB is fairly soluble in water.
 Storage/Handling: Store at 2-8°C, and protect from light and humidity.