tetrasodium 4-amino-6-[[4'-[(1,8-dihydroxy-3,6-disulphonato-2-naphthyl)azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]-5-hydroxynaphthalene-1,3-disulphonate;Tetrasodium 4-amino-6-((4'-((1,8-dihydroxy-3,6-disulphonato-2-naphthyl)azo)-3,3'-dimethoxy (1,1'-biphenyl)-4-yl)azo)-5- hydroxynaphthalene-1,3-disulphonate;4-Amino-6-[[4'-[(1,8-dihydroxy-3,6-disulfo-2-naphtyl)azo]-3,3'-dimethoxy-[1,1'-biphenyl]-4-yl]azo]-5-hydroxy-1,3-naphthalenedisulfonic acid tetrasodium salt;1,3-Naphthalenedisulfonic acid, 4-amino-6-((4'-((1,8-dihydroxy-3,6-disulfo-2-naphthalenyl)azo)-3,3'-dimethoxy(1,1'-biphenyl)-4-yl)azo)-5-hydroxy-, tetrasodium salt;1,3-Naphthalenedisulfonic acid, 4-amino-6-(2-(4'-(2-(1,8-dihydroxy-3,6-disulfo-2-naphthalenyl)diazenyl)-3,3'-dimethoxy(1,1'-biphenyl)-4-yl)diazenyl)-5-hydroxy-, sodium salt (1:4);Einecs 268-434-5