Resin acids and rosin acids, hydrogenated, esters with triethylene glycol (CAS 68648-53-3) — Woody Base Note Fragrance Ingredient
Resin acids and rosin acids, hydrogenated, esters with triethylene glycol
CAS 68648-53-3
What Is Resin acids and rosin acids, hydrogenated, esters with triethylene glycol?
Hydrogenated resin acid esters are synthetic ingredients used as fixatives in perfumes and functional fragrances. They help scents last longer on skin and in products like candles. These materials matter because they provide an affordable, stable alternative to natural resinoids while maintaining similar performance characteristics.
Safety Profile
GENERALLY SAFEWhat Does Resin acids and rosin acids, hydrogenated, esters with triethylene glycol Smell Like?
This synthetic fixative has a subtle, woody-balsamic character with faint pine-like undertones. It lacks the sharpness of natural resins, offering instead a smooth, almost creamy background note. Over time, it provides a gentle warmth that blends seamlessly with other materials, enhancing their longevity without dominating the fragrance profile.
Chemistry, Properties & Perfumer Guide
The Chemistry
Hydrogenated resin acid esters are derived from rosin through hydrogenation and esterification processes. The hydrogenation reduces unsaturated bonds, improving stability and odor characteristics. Esterification with triethylene glycol enhances solubility and compatibility with fragrance oils. These modifications create materials with consistent performance compared to variable natural resins.
Physical & Chemical Properties
| Appearance | Viscous liquid to semi-solid |
|---|---|
| Color | Pale yellow to amber |
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Fine Fragrance | 1-3% | Up to 5% | Fixative base note |
| Functional Fragrances | 3-10% | Up to 15% | Enhances longevity |
Classic Accords
Tip: Use as a replacement for natural resinoids when cost stability is important.
Alternatives & Comparisons
Similar properties without esterification, slightly less soluble in fragrance oils.
Safety, Regulatory & Sustainability
⚠ Regulatory Disclaimer
General reference only. Consult current IFRA Standards Library before formulating.
IFRA Status
No IFRA restrictions.
RIFM Assessment
Considered safe for current fragrance uses by RIFM.
Sustainability
Synthetic production allows for consistent quality and reduces pressure on natural resin resources. The hydrogenation process requires energy but creates stable materials with longer shelf life than natural alternatives.
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