2,7-Naphthalenedisulfonic acid, 4-amino-3-4-4-(8-amino-1-hydroxy-5-sulfo-2-naphthalenyl)azophenylaminocarbonylphenylazo-5-hydroxy-6-(phenylazo)-

4-Amino-3-[[4-[[[4-[(8-amino-1-hydroxy-5-sulfo-2-naphthalenyl)azo]phenyl]amino]carbonyl]phenyl]azo]-5-hydroxy-6-phenylazo-2,7-naphthalenedisulfonic acid

4-amino-3-[[4-[[[4-[(8-amino-1-hydroxy-5-sulpho-2-naphthyl)azo]phenyl]amino]carbonyl]phenyl]azo]-5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonic acid