6-Amino-5-[[4'-[[2,4-diamino-5-[(4-sodiosulfophenyl)azo]phenyl]azo]-1,1'-biphenyl-4-yl]azo]-4-hydroxynaphthalene-2-sulfonic acid sodium salt | 6-Amino-5-[[4'-[[2,4-diamino-5-[(4-sodiosulfophenyl)azo]phenyl]azo]-1,1'-biphenyl-4-yl]azo]-4-hydroxynaphthalene-2-sulfonic acid sodium salt | |