C.I. 20250; Trifo Brown CG; Koranil Brown CGG; Baygenal Brown CGG; C.I. Acid Brown 83; sodium [3-[[3-[(3-amino-4-nitrophenyl)azo]-2,4-dihydroxyphenyl]azo]-4-hydroxybenzenesulphonato(3-)]cuprate(1-); copper,sodium,3-[[(3Z)-3-[(3-amino-4-nitrophenyl)hydrazinylidene]-2-oxido-4-oxocyclohexa-1,5-dien-1-yl]diazenyl]-4-oxidobenzenesulfonate
