5-[[4'-[[8-[[2,4-Diamino-5-[(4-sodiosulfophenyl)azo]phenyl]azo]-1-hydroxy-3,6-bis(sodiosulfo)-2-naphthalenyl]azo][1,1'-biphenyl]-4-yl]azo]-2-hydroxybenzoic acid sodium salt C.I.35720 C.I.Direct Brown 215 Diamine Dark Brown G Benzoic acid, 5-((4'-((8-((2,4-diamino-5-((4-sulfophenyl)azo)phenyl)azo)-1-hydroxy-3,6-disulfo-2-naphthalenyl)azo)(1,1'-biphenyl)-4-yl)azo)-2-hydroxy-, tetrasodium salt C.I.Direct Brown 215:C.I.35720 Direct Brown 215