68966-99-4 Chromate(1-), (2-((4,5-dihydro-3-methyl-1-(2-methyl-4-sulfophenyl)-5-oxo-1H-pyrazol-4-yl)azo)-4-sulfobenzoato(4-))-, hydrogen EINECS 273-463-1 Hydrogen (2-((4,5-dihydro-3-methyl-5-oxo-1-(4-sulpho-o-tolyl)-1H-pyrazol-4-yl)azo)-4-sulphobenzoato(4-))chromate(1-)