6428-33-7 7,7-Iminobis[3-[[4-[(2,4-diaminophenyl)azo]-3-sodiosulfophenyl]azo]-4-hydroxynaphthalene-2-sulfonic acid sodium] salt
6428-42-8 5-[[4-[[8-[[6-[(2,4-Diaminophenyl)azo]-1-hydroxy-3-sodiosulfo-2-naphthalenyl]azo]-1-hydroxy-3,6-bis(sodiosulfo)-2-naphthalenyl]azo][1,1-biphenyl]-4-yl]azo]-2-hydroxybenzoic acid sodium salt