5-((4'-((8-((2,4-Dihydroxy-3-((2-methoxy-5-sulphophenyl)azo)phenyl)azo)-1-hydroxy-3,6-disulpho-2-naphthyl)azo)-3,3'-dimethoxy(1,1'-biphenyl)-4-yl)azo)salicylic acid;5-[4-[4-[[8-[2,4-dihydroxy-3-(2-methoxy-5-sulfo-phenyl)azo-phenyl]azo-1-hydroxy-3,6-disulfo-2-naphthyl]azo]-3-methoxy-phenyl]-2-methoxy-phenyl]azo-2-hydroxy-benzoic acid
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