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INDIGO

I-073001

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Catalogue Number:	I-073001
Compound Name:	Indigo Carmine
Synonyms:	3,3'-dioxo-[2,2'-biindolinylidene]-5,5'-disulfonate, sodium salt (1:2)
CAS#:	860-22-0
Alternate CAS#:	483-20-5 (free acid); 3425-25-0 (Diammonium salt)
Molecular Formula:	C₁₆H₈N₂O₈S₂. 2Na
Molecular Weight:	420.37 2*22.99

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