2-Methyl-3-((5-(aminosulfonyl)-2-hydroxyphenyl)azo)pyrazolo(2,3-a)benzimidazole, chromium complex (2:1), sodium salt 72906-13-9 83732-99-4 94276-40-1 Chromate(1-), bis(4-(hydroxy-kappaO)-3-((2-methyl-4H-pyrazolo(1,5-a)benzimidazol-3-yl-kappaN4)azo-kappaN1)benzenesulfonamidato(2-))-, sodium EINECS 276-988-4 Sodium bis(4-hydroxy-3-((2-methyl-4H-pyrazolo(1,5-a)benzimidazol-3-yl)azo)benzene-1-sulphonamidato(2-))chromate(1-)