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Indigo Carmine (C.I. 73015)

Indigo carmine, or 5,5′-indigodisulfonic acid sodium salt, is an organic salt derived from indigo by sulfonation, which renders the compound soluble in water. It is approved for use as a food colourant in the U.S and E.U., It has the E number E132. It is also a pH indicator.

Product Details

Category Dyes, Stains & Indicators
Price POA
CAS Number 860-22-0
Formula C16H8N2O8S2Na2
Molecular Weight 466.35
Appearance dark blue to purple powder
Availability In Stock
Storage Conditions Room temperature

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