5-[[4-[[7-[4,5-dihydro-3-methyl-5-oxo-4-(phenylazo)-1H-pyrazol-1-yl]-3-hydroxy-1-sulpho-2-naphthyl]azo]-3-methoxy-7-sulpho-1-naphthyl]azo]salicylic acid

5-[[4-[[7-[[4,5-Dihydro-3-methyl-5-oxo-4-(phenylazo)-1H-pyrazol]-1-yl]-3-hydroxy-1-sulfo-2-naphtyl]azo]-3-methoxy-7-sulfo-1-naphtyl]azo]-2-hydroxybenzoic acid