6473-03-6 5,5-[[[4-[(4-Hydroxy-3-sodiooxycarbonylphenyl)azo]-3-methylphenyl]hydroxymethylene]bis[(4,1-phenylene)azo]]bis[2-hydroxybenzoic acid sodium] salt
6473-07-0 4,4-[[1,1-Biphenyl]-4,4-diylbis[azo(2,4-dihydroxy-3,1-phenylene)azo]]bis[benzenesulfonic acid sodium] salt