C.I. Direct Brown 6,
5-[[4'-[[2,4-Dihydroxy-3-[(4-sulfophenyl)azo]phenyl]azo]-1,1'-biphenyl-4-yl]azo]-2-hydroxybenzoic acid disodium salt,
Trisulfon Brown 3R
Benzenesulfonic acid,5-[ethyl(phenylmethyl)amino]-2-[2-[4-[2-(3-sulfophenyl)diazenyl]-1-naphthalenyl]diazenyl]-,sodium salt (1:2), Benzenesulfonicacid,5-[ethyl(phenylmethyl)amino]-2-[[4-[(3-sulfophenyl)azo]-1-naphthalenyl]azo]-,disodium salt (9CI), DISODIUM 5-[ETHYLTOLYLAMINO]-2-[[4-[(3-SULFONATOPHENYL)AZO]-NAPHTHALEN-1-YL]AZO]BENZENESULFONATE