UNDECYLENIC ACID- ▸ Fragrances: Fragrance ingredient
- ▸ Flavorings: Flavoring agent (JECFA-listed)
- ▸ Cosmetics: Preservative and cleansing component
- ▸ Chemical synthesis: Reactive intermediate for derivatives
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
Request SDS →Undecylenic acid (CAS 112-38-9), or 10-undecenoic acid, is an unsaturated C11 fatty acid bearing a terminal double bond. It is used as a fragrance and flavoring ingredient, as a preservative and cleansing component in cosmetic formulations, and as a reactive chemical intermediate for downstream synthesis.
Frequently Asked Questions
What is another name for undecylenic acid?
Undecylenic acid (CAS 112-38-9) is also called 10-undecenoic acid. It is an unsaturated C11 fatty acid bearing a terminal carbon-carbon double bond, formula C11H20O2.
What is undecylenic acid used for?
As an industrial ingredient it is used as a fragrance and flavoring agent (JECFA-listed), as a preservative and cleansing component in cosmetic formulations, and as a reactive chemical intermediate for downstream synthesis of derivatives.
Is undecylenic acid an acid, and what is its structure?
Yes, it is a carboxylic acid, specifically an unsaturated C11 monocarboxylic fatty acid (10-undecenoic acid) with a terminal double bond. The formula is C11H20O2, CAS 112-38-9.
What is the HS code for undecylenic acid?
Undecylenic acid is generally classified under HS 2916.19 (unsaturated acyclic monocarboxylic acids, other). Confirm the final classification with your customs broker against the as-shipped grade and country of import.
How is undecylenic acid supplied in bulk?
It is typically supplied as a liquid fatty acid in drums or totes, with grade selected by application (fragrance/flavor, cosmetic, or technical intermediate). Request a bulk quote from RawSource for current packaging, lead time, and CoA/SDS documentation.