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Is 4-Methylpent-3-En-2-One vegan?

4-Methylpent-3-En-2-One

Vegan

A synthetic α,β-unsaturated ketone, also known as mesityl oxide, a colorless volatile liquid with a honey-like odor, used as a solvent and fragrance ingredient.

Also known as Mesityl Oxide
INCI name 4-Methylpent-3-En-2-One
CAS number 141-79-7
EC number 205-502-5
CosIng ID 40767
Last reviewed 9 July 2026

Sources

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