CheckVegan

Is Isobutyl Butyrate vegetarian?

Isobutyl Butyrate

Vegetarian Vegetarian
Vegan Vegan

Isobutyl butyrate is a synthetic ester formed from isobutanol and butyric acid, used as a fragrance and flavoring ingredient with a fruity odor.

Also known as 2-Methylpropyl butanoate
INCI name Isobutyl Butyrate
CAS number 539-90-2
EC number 208-729-8
CosIng ID 40335
Last reviewed 4 July 2026

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

Classifications are made to the best of our knowledge based on available scientific and regulatory sources. We cannot guarantee the accuracy of every entry, errors in the sources we draw from can always occur. This tool also cannot account for cross-contamination, which depends entirely on individual suppliers and producers. If you believe a classification is incorrect, you can report an issue.

Report an issue