2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-3-((4'-((4-hydroxyphenyl)azo)-3,3'-dimethoxy(1,1'-biphenyl)-4-yl)azo)-6-((4-sulfophenyl)azo)-, trisodium salt 4-((1-Amino-3,6-disulfo-7-((p-sulfophenyl)azo)-8-hydroxy-2-naphthyl)azo)-4'-((p-hydroxyphenyl)azo)-3,3'-dimethoxybiphenyl, trisodium salt 70632-07-4 EINECS 274-706-4 Trisodium 4-amino-5-hydroxy-3-((4'-((4-hydroxyphenyl)azo)-3,3'-dimethoxy(1,1'-biphenyl)-4-yl)azo)-6-((4-sulphonatophenyl)azo)naphthalene-2,7-disulphonate