Is Acid Orange 52 vegan?
Acid Orange 52
Methyl Orange is a synthetic azo dye widely used as a pH indicator in titrations, showing red colour in acidic media and yellow in basic media, with a colour change range of approximately pH 3.1–4.4. It is particularly useful in titrations of strong acids in weak bases and has a sharp, distinct endpoint.
| Also known as | Acid Orange 52, Methyl Orange |
|---|---|
| CAS number | 547-58-0 |
| CI number | CI 13025 |
| Last reviewed | 3 June 2026 |
An ingredient is considered vegan if it contains no animal-derived components at any point in its production.
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