CheckVegan

Is 2-Methyl-2-butenal vegetarian?

2-Methyl-2-butenal

Vegetarian Vegetarian
Vegan Vegan

2-Methyl-2-butenal (also known as 2-isopentenal or 3-methyl-2-butenal) is a synthetic organic aldehyde used as a flavoring and fragrance ingredient.

Also known as 2-Isopentenal, 3-Methyl-2-butenal
INCI name 2-Methyl-2-butenal
CAS number 107-86-8
EC number 203-527-6
CosIng ID 39677
Last reviewed 9 July 2026

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

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