6-Amino-3-[[4-[[7-[(2,4-diaminophenyl)azo]-1-hydroxy-3-sodiosulfo-2-naphthalenyl]azo]phenyl]azo]-4-hydroxynaphthalene-2-sulfonic acid sodium salt | 6-Amino-3-[[4-[[7-[(2,4-diaminophenyl)azo]-1-hydroxy-3-sodiosulfo-2-naphthalenyl]azo]phenyl]azo]-4-hydroxynaphthalene-2-sulfonic acid sodium salt | |