title: Ellman's reagent: 5,5'-dithiobis(2-nitrobenzoic acid)--a reexamination.
mesh_terms: D000042:Absorption; D002021:Buffers; D055598:Chemical Phenomena; D002621:Chemistry; D003116:Color; D003545:Cysteine / Q000032:analysis; D004228:Dithionitrobenzoic Acid / Q000138:chemical synthesis; D006863:Hydrogen-Ion Concentration; D006868:Hydrolysis; D009579:Nitrobenzoates / Q000138:chemical synthesis; D012492:Salts; D013053:Spectrophotometry; D013696:Temperature
chemical_list: D002021:Buffers; D009579:Nitrobenzoates; D012492:Salts; D004228:Dithionitrobenzoic Acid; D003545:Cysteine