67827-63-8

2-[[1-(4-aminophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-5-[[3-[[1-(4-aminophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-4-hydroxybenzoyl]amino]benzoic acid