Poly(oxy-1,2-ethanediyl), a-tridecyl-w-hydroxy-, branched (CAS 69011-36-5) — Citrus Non-volatile Note Fragrance Ingredient
Poly(oxy-1,2-ethanediyl), a-tridecyl-w-hydroxy-, branched
CAS 69011-36-5
What Is Poly(oxy-1,2-ethanediyl), a-tridecyl-w-hydroxy-, branched?
This synthetic polymer is commonly used as a surfactant and emulsifier in personal care products. You’ll find it in shampoos, conditioners, and liquid soaps where it helps blend oil and water components. While not a fragrance ingredient itself, it plays a crucial role in stabilizing scent compositions and ensuring even distribution of aromatic compounds in cosmetic formulations.
Safety Profile
GENERALLY SAFEWhat Does Poly(oxy-1,2-ethanediyl), a-tridecyl-w-hydroxy-, branched Smell Like?
As a non-volatile polymer, this material has no detectable odor of its own. Its primary function is structural rather than aromatic, serving as an invisible scaffold that helps maintain the integrity of fragrance compositions without contributing to the scent profile.
Chemistry, Properties & Perfumer Guide
The Chemistry
This polyethylene glycol derivative is classified as a nonionic surfactant. The ‘a-tridecyl-w-hydroxy-‘ designation indicates a branched C13 alkyl chain terminated by a hydroxyl group. Such polymers are typically synthesized through base-catalyzed ethoxylation reactions of fatty alcohols. The branching pattern affects the surfactant’s cloud point and solubility characteristics.
Physical & Chemical Properties
| Appearance | Colorless to pale yellow viscous liquid |
|---|---|
| Solubility | Soluble in water and most organic solvents |
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Shampoos | 1-5% | 0.5-10% | Primary surfactant |
| Conditioners | 0.5-3% | 0.1-5% | Emulsifier |
Classic Accords
Tip: Use as a base for creating stable microemulsions of fragrance oils.
Alternatives & Comparisons
When more natural derivation is preferred for marketing purposes.
Safety, Regulatory & Sustainability
⚠ Regulatory Disclaimer
General reference only. Consult current IFRA Standards Library before formulating.
IFRA Status
Not restricted by IFRA as it is not a fragrance material.
RIFM Assessment
Not assessed by RIFM as it is not a direct fragrance ingredient.
Sustainability
As a petrochemical derivative, its environmental impact comes from fossil fuel extraction. However, its high efficiency at low usage levels partially offsets this concern. Biodegradability studies show moderate environmental persistence.
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References
- PubChem Compound Summary for Poly(oxy-1,2-ethanediyl), a-tridecyl-w-hydroxy-, branched PubChem
Data: PubChem (NIH), PubMed, RIFM, IFRA. Last reviewed: Apr 2026.
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