2,7-Naphthalenedisulfonic acid, 4-amino-3-((4-((2-amino-4-hydroxyphenyl)azo)phenyl)azo)-5-hydroxy-6-(phenylazo)-, disodium salt 4-Amino-3-(4-((2-amino-4-hydroxyphenyl)azo)phenylazo)-5-hydroxy-6-(phenylazo)naphthalene-2,7-disulfonic acid, disodium salt 68460-07-1 Disodium 4-amino-3-((4-((2-amino-4-hydroxyphenyl)azo)phenyl)azo)-5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonate EINECS 270-629-5