CheckVegan

Is Trans-5-Octenone vegetarian?

Trans-5-Octenone

Vegetarian Vegetarian
Vegan Vegan

Trans-5-Octenone is a synthetic organic compound, (E)-oct-5-en-2-one, used as a fragrance ingredient.

Also known as (E)-Oct-5-en-2-one
INCI name Trans-5-Octenone
CAS number 19093-20-0
EC number 242-810-9
CosIng ID 40529
Last reviewed 4 July 2026

An ingredient is considered vegetarian if it avoids components derived from killing an animal.

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