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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