4-Amino-3-[[4-[(2,4-diaminophenyl)azo]phenyl]azo]-6-[[4-[(2,4-diaminophenyl)azo]-2-methylphenyl]azo]-5-hydroxynaphthalene-2,7-disulfonic acid disodium salt
4-Amino-3-[[4-[(2,4-diaminophenyl)azo]phenyl]azo]-6-[[4-[(2,4-diaminophenyl)azo]-2-methylphenyl]azo]-5-hydroxynaphthalene-2,7-disulfonic acid disodium salt