Is Acid Blue 74 vegan?
Acid Blue 74
Vegan
Vegan
Vegetarian
Vegetarian
Indigotine (Indigo Carmine, E132) is a synthetic blue azo dye used as a food and cosmetic colorant. Despite its name referencing indigo, it is produced synthetically rather than from the indigo plant.
| Also known as | 2-(1,3-Dihydro-3-oxo-5-sulfo-2H-indol-2-yliden)-2,3-dihydro-3-oxo-1H-indol-5-sulfonsäure-Aluminiumkomplex, 2-(1,3-Dihydro-3-oxo-5-sulfo-2H-indol-2-ylidene)-2,3-dihydro-3-oxo-1H-indole-5-sulfonic acid aluminium complex, 2-(1,3-Dihydro-3-oxo-5-sulfo-2H-indol-2-ylidene)-2,3-dihydro-3-oxo-1H-indole-5-sulfonic acid aluminium complex (CI 73015), 5,5'-Indigodisulfonic acid sodium salt, Acid Blue 74, Acid Blue 74 Aluminiumlack, Acid Blue 74 Aluminum Lake, Blue 2, Blue No. 2, CI 75781, Disodium 5,5'-(2-(1,3-dihydro-3-oxo-2H-indazol-2-ylidene)-1,2-dihydro-3H-indol-3-one)disulphonate, Disodium 5,5'-(2-(1,3-dihydro-3-oxo-2H-indazol-2-ylidene)-1,2-dihydro-3H-indol-3-one)disulphonate (CI 73015), FD&C Blue No. 2, Food Blue 1, Indigo, Indigo Blue, Indigo carmine, Indigo Carmine (natural), Indigo carmine (synthetic), Indigo Carmine Aluminum Lake, Indigocarmin-Aluminiumlack, indigotindisulfonate sodium, Indigotine, Natural Blue 2, Soluble Indigo |
|---|---|
| INCI name | Acid Blue 74 |
| E number | E132 |
| INS number | 132 |
| CAS number | 860-22-0 |
| EC number | 212-728-8 |
| CI number | CI 73015 |
| CosIng ID | 32793 |
| Last reviewed | 11 June 2026 |
An ingredient is considered vegan if it contains no animal-derived components at any point in its production.
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