73507-09-2 EINECS 277-486-8 Hydrogen (2-((4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo)benzoato(2-))(N-(7-hydroxy-8-((2-hydroxy-5-sulphamoylphenyl)azo)-1-naphthyl)acetamidato(2-))chromate(1-)