Is Acid Red 73 vegetarian?
Acid Red 73
Cotton Scarlet is a synthetic azo dye classified under the Colour Index as Acid Red 73. It is used as a textile dye, particularly for dyeing cellulosic fibres such as cotton. It is a fully synthetic compound with no animal-derived components.
| Also known as | 1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-[[4-(phenylazo)phenyl]azo]-,disodium salt (CI 27290), Acid Red 73, Brilliant Crocein MOO, Cotton Scarlet, Crocein Scarlet 3B, sodium 6-hydroxy-5-(4-phenylazophenylazo)naphthalene-2,4-disulphonate, Woodstain Scarlet |
|---|---|
| INCI name | Acid Red 73 |
| CAS number | 5413-75-2 |
| EC number | 226-507-0 |
| CI number | CI 27290 |
| CosIng ID | 41712 |
| Last reviewed | 3 June 2026 |
An ingredient is considered vegetarian if it avoids components derived from killing an animal.
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