4-((2,6-Diamino-3-((p-sulfophenyl)azo)phenyl)azo)-4'-(5-salicylazo)-3,3'-dimethyl-1,1'-biphenyl, dilithium salt

dilithium 5-[[4'-[[2,6-diamino-3-[(4-sulphonatophenyl)azo]phenyl]azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]salicylate

5-[[4'-[[2,6-Diamino-3-[[4-(lithiooxysulfonyl)phenyl]azo]phenyl]azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-2-hydroxybenzoic acid lithium salt