Disodium 5-((4'-((2,4-diamino-5-sulphonatophenyl)azo)-3,3'-dimethyl(1,1'-biphenyl)-4-yl)azo)salicylate

disodium 5-[[4'-[(2,4-diamino-5-sulphonatophenyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]salicylate

5-[[4'-[[2,4-Diamino-5-(sodiosulfo)phenyl]azo]-3,3'-dimethyl-[1,1'-biphenyl]-4-yl]azo]-2-hydroxybenzoic acid sodium salt