Trisodium 4-amino-3-{4-[4-(4-amino-2-hydroxyphenylazo)anilino]-3-sulfonatophenylazo}-5-hydroxy-6-phenylazo-2,7-naphthalenedisulfonate

trisodium 4-amino-3-[[4-[[4-[(4-amino-2-hydroxyphenyl)azo]phenyl]amino]-3-sulphonatophenyl]azo]-5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonate

4-Amino-3-[4-[4-(4-amino-2-hydroxyphenylazo)anilino]-3-(sodiooxysulfonyl)phenylazo]-5-hydroxy-6-phenylazo-2,7-naphthalenedisulfonic acid disodium salt

4-Amino-3-[[4-[[4-[(4-amino-2-hydroxyphenyl)azo]phenyl]amino]-3-(sodiooxysulfonyl)phenyl]azo]-5-hydroxy-6-(phenylazo)-2,7-naphthalenedisulfonic acid disodium salt