2-((1-(4-Aminophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl)azo)-5-((2-((1-(4-aminophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl)azo)-4-hydroxybenzoyl)amino)benzoic acid 84963-13-3 EINECS 284-813-8