9-Octadecenoic acid (Z)-, monoester with 1,2,3-propanetriol (CAS 25496-72-4) — Citrus Non-olfactive Note Fragrance Ingredient
9-Octadecenoic acid (Z)-, monoester with 1,2,3-propanetriol
CAS 25496-72-4
What Is 9-Octadecenoic acid (Z)-, monoester with 1,2,3-propanetriol?
This synthetic compound is a monoester derived from oleic acid and glycerol, primarily used as an emollient in skincare and cosmetic formulations. While not a fragrance ingredient itself, it appears in perfumed products as part of the base formulation. Its importance lies in providing texture and skin-feel benefits while being compatible with fragrance oils.
Safety Profile
GENERALLY SAFEWhat Does 9-Octadecenoic acid (Z)-, monoester with 1,2,3-propanetriol Smell Like?
This material has negligible odor impact in fragrance applications, functioning primarily as a carrier or texture-modifying agent. Its chemical structure suggests it would have minimal olfactory contribution even at high concentrations, making it useful for formulations requiring neutral base materials.
Chemistry, Properties & Perfumer Guide
The Chemistry
This monoester is synthesized through esterification of oleic acid (cis-9-octadecenoic acid) with glycerol (1,2,3-propanetriol). The Z-configuration of the double bond is preserved during synthesis. As an oleochemical derivative, it belongs to the class of fatty acid esters commonly used in cosmetic formulations. Industrial production typically involves acid-catalyzed reactions under controlled temperature conditions.
Physical & Chemical Properties
| Appearance | Typically viscous liquid |
|---|---|
| Function | Emollient/carrier |
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Cosmetic Bases | 5-20% | Up to 30% | Texture modification |
| Perfume Carriers | 2-10% | Up to 15% | Neutral base |
Classic Accords
Tip: Use as a neutral carrier for fragrance oils requiring enhanced skin adhesion.
Alternatives & Comparisons
Similar monoester composition with equivalent functionality in formulations.
Alternative ester carrier with lighter texture and faster absorption.
Safety, Regulatory & Sustainability
⚠ Regulatory Disclaimer
General reference only. Consult current IFRA Standards Library before formulating.
IFRA Status
Not restricted by IFRA – primarily functions as non-fragrance ingredient.
RIFM Assessment
Not evaluated by RIFM as it is not a fragrance material.
Sustainability
Synthesized from renewable oleochemical feedstocks, primarily derived from vegetable oils. Production typically follows green chemistry principles with high atom economy. Biodegradability profile is favorable compared to petrochemical alternatives.
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References
- Cosmetic Ingredient Review (Year). Safety Assessment of Monoesters. Journal.
- Oleochemical Manufacturers Association (Year). Production Guidelines.
Data: PubChem (NIH), PubMed, RIFM, IFRA. Last reviewed: Apr 2026.
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