N-Nitroso Indigo carmine

Name of Impurity/Standard N-Nitroso Indigo carmine
CAS No. NA
Molecular Formula C16H7N3O9S2 : 2Na
Molecular Weight 449.4 : 2(23.0) g/mol
Synonyms: Sodium (E)-1-nitroso-3,3'-dioxo-[2,2'-biindolinylidene]-5,5'-disulfonate