73018-73-2 Chromate(3-), bis(4,6-dihydroxy-5-((2-hydroxy-5-chlorophenyl)azo)-2-naphthalenesulfonato(3-))-, trihydrogen Chromate(3-), bis(5-((5-chloro-2-(hydroxy-kappaO)phenyl)azo-kappaN1)-4-hydroxy-6-(hydroxy-kappaO)-2-naphthalenesulfonato(3-))-, trihydrogen