Is Acid Orange 7 vegetarian?
Acid Orange 7
Tropaeolin OOO2 (Orange II) is a synthetic azo dye belonging to the acid dye group, used as a pH indicator. It is part of the tropaeolin series of dyes, named after the botanical name Tropaeolum for nasturtiums. It is produced entirely from synthetic precursors.
| Also known as | 2-Naphthol Orange, 2-napththol orange, Acid Orange 7, CI Acid Orange 7, Natrium-4-[(2-hydroxy-1-naphthyl)azo]benzolsulfonat, Orange II, Sodium 4-[(2-hydroxy-1-naphthyl)azo]benzene sulfonate, Sodium 4-[(2-hydroxy-1-naphthyl)azo]benzenesulphonate, Sodium 4-[(2-hydroxy-1-naphthyl)azo]benzenesulphonate (CI 15510) |
|---|---|
| INCI name | Acid Orange 7 |
| CAS number | 633-96-5 |
| EC number | 211-199-0 |
| CI number | CI 15510 |
| CosIng ID | 98860 |
| Last reviewed | 3 June 2026 |
An ingredient is considered vegetarian if it avoids components derived from killing an animal.
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