4-Amino-3-[4'-(2,4-diaminophenyl)azo-3,3'-dimethyl-4-biphenylylazo]-5-hydroxy-6-(4-sodiosulfophenylazo)-2,7-naphthalenedisulfonic acid disodium salt

trisodium 4-amino-3-[[4'-[(2,4-diaminophenyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-5-hydroxy-6-[(4-sulphonatophenyl)azo]naphthalene-2,7-disulphonate

4-Amino-3-[[4'-[(2,4-diaminophenyl)azo][3,3'-dimethyl-1,1'-biphenyl]-4-yl]azo]-5-hydroxy-6-[(4-sulfophenyl)azo]-2,7-naphthalenedisulfonic acid, trisodium salt

2,7-Naphthalenedisulfonic acid, 4-amino-3-[[4'-[(2,4-diaminophenyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-5-hydroxy-6-[(4-sulfophenyl)azo]-, trisodium salt