57692-73-6
chromium(3+) hydrogen 7-(dioxidoamino)-3-oxo-4-[(2-oxonaphthalen-1(2h)-ylidene)hydrazinylidene]-3,4-dihydronaphthalene-1-sulfonate 7-nitro-4-[2-(2-oxidonaphthalen-1-yl)diazan-2-id-1-ylidene]-3-oxo-3,4-dihydronaphthalene-1-sulfonate(1:3:1:1)