Glycerides, mixed decanoyl and octanoyl (CAS 73398-61-5) — Citrus None Note Fragrance Ingredient
Glycerides, mixed decanoyl and octanoyl
CAS 73398-61-5
What Is Glycerides, mixed decanoyl and octanoyl?
Mixed decanoyl and octanoyl glycerides are synthetic compounds used primarily as emollients and texture enhancers in cosmetics and skincare products. You’ll find them in moisturizers, creams, and some fragrance bases where they help stabilize other ingredients. While not a fragrance material itself, this ingredient plays a supporting role in product formulations by improving spreadability and skin feel.
Safety Profile
GENERALLY SAFEWhat Does Glycerides, mixed decanoyl and octanoyl Smell Like?
Mixed decanoyl and octanoyl glycerides are essentially odorless, functioning primarily as a carrier rather than an aromatic component. In formulations, they may impart a faint waxy or fatty character at high concentrations, but this is typically masked by other fragrance materials. Their neutral olfactory profile makes them valuable as a non-interfering base for fragrance delivery systems.
Chemistry, Properties & Perfumer Guide
The Chemistry
These glycerides are synthetic esters formed by the reaction of glycerol with decanoic (capric) and octanoic (caprylic) acids. The mixed composition results in a blend of mono-, di-, and triglycerides with varying chain lengths. This structural diversity contributes to their versatile physical properties. Production typically involves esterification of fatty acids with glycerol under controlled conditions, followed by purification to achieve the desired ratio of acyl groups.
Physical & Chemical Properties
| Appearance | Colorless to pale yellow liquid |
|---|---|
| Solubility | Soluble in oils, insoluble in water |
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Skin Care | 2-10% | Up to 20% | Emollient and texture modifier |
| Fragrance Bases | 1-5% | Up to 8% | Carrier for volatile components |
Classic Accords
Tip: Use as a neutral base to improve the longevity of top notes without altering fragrance character.
Alternatives & Comparisons
Similar functionality with slightly different viscosity profile, often used interchangeably in formulations.
Provides comparable emollient properties but with higher melting point for solid formulations.
Safety, Regulatory & Sustainability
⚠ Regulatory Disclaimer
General reference only. Consult current IFRA Standards Library before formulating.
IFRA Status
Not restricted by IFRA
RIFM Assessment
Considered safe for use in cosmetics based on existing safety data.
Sustainability
As synthetic materials, these glycerides offer consistent quality without relying on agricultural resources. Their production can be optimized for minimal environmental impact through efficient catalytic processes and renewable energy sources. The synthetic origin eliminates concerns about land use change or biodiversity impacts associated with some natural emollients.
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References
- Cosmetic Ingredient Review Expert Panel (2007). Safety Assessment of Glycerides as Used in Cosmetics. CIR Report
- Personal Care Products Council. International Cosmetic Ingredient Dictionary. INCI Database
Data: PubChem (NIH), PubMed, RIFM, IFRA. Last reviewed: Apr 2026.
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