Synonyms: Chromate(1-), bis((4-(2-(5-chloro-2-(hydroxy-kappaO)phenyl)diazenyl-kappaN1)naphth(2,1-d)-1,3-oxathiazol-5-ol-kappaO5) 3,3-dioxidato(2-))-, sodium (1:1);Naphth(2,1-d)-1,3-oxathiole, 5-hydroxy-4-((5-chloro-2-hydroxyphenyl)azo)-, S,S-dioxide, chromium complex, sodium salt;Chromate(1-), bis((4-((5-chloro-2-(hydroxy-kappaO)phenyl)azo-kappaN1)naphth(2,1-d)-1,3-oxathiazol-5-ol-kappaO5) 3,3-dioxidato(2-))-, sodium;Chromate(2-), bis(4-((5-chloro-2-hydroxyphenyl)azo)naphth(2,1-d)-1,3-oxathiazol-5-ol 3,3-dioxidato(2-))-, sodium;Sodium bis(4-((5-chloro-2-hydroxyphenyl)azo)naphth(2,1-d)-1,3-oxathiazol-5-ol 3,3-dioxidato(2-))chromate(2-)