Undecanoic acid

At a glance

Undecanoic acid (C11 fatty acid) is obtained by oxidation of natural fats or synthetically from petro‑derived precursors; it has a waxy, fatty, slightly rancid odor and is used as a fixative in perfumery.

Category
⚗️ Synthetic
Origin
synthetic or derived from natural fats and oils
Extraction
Chemical synthesis
Chemical family
Acid
CAS number
112-37-8
Profile
fresh, fruity, waxy
IFRA status
Not restricted
● drafted · last checked 2026-09-01