Poly(oxy-1,2-ethanediyl), -isodecyl–hydroxy- (CAS 61827-42-7) — Citrus N/A Note Fragrance Ingredient
Poly(oxy-_1,_2-_ethanediyl)_, _-_isodecyl-__-_hydroxy-
CAS 61827-42-7
What Is Poly(oxy-_1,_2-_ethanediyl)_, _-_isodecyl-__-_hydroxy-?
Poly(oxy-1,2-ethanediyl), α-isodecyl-ω-hydroxy- is a synthetic polymer used primarily as an emulsifier and stabilizer in cosmetic formulations. Consumers may encounter it in lotions, creams, and hair care products where it helps blend oil and water components. While not a fragrance ingredient itself, this compound plays a supporting role in scent delivery systems by improving the longevity and diffusion of fragrance oils in personal care products.
Safety Profile
GENERALLY SAFEWhat Does Poly(oxy-_1,_2-_ethanediyl)_, _-_isodecyl-__-_hydroxy- Smell Like?
This polymer is odorless and does not contribute directly to fragrance profiles. Its primary function is to modify the physical properties of fragrance formulations, enhancing texture and stability without altering scent characteristics.
Chemistry, Properties & Perfumer Guide
The Chemistry
Poly(oxy-1,2-ethanediyl), α-isodecyl-ω-hydroxy- is a polyethylene glycol derivative with a hydrophobic isodecyl group and hydrophilic hydroxyl termination. This amphiphilic structure allows it to function as a nonionic surfactant. It’s synthesized through ethoxylation of isodecyl alcohol under controlled conditions. The polymer’s molecular weight distribution depends on the degree of ethoxylation during production.
Physical & Chemical Properties
| Appearance | Colorless to pale yellow liquid |
|---|---|
| Solubility | Soluble in water and most organic solvents |
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Emulsions | 1-5% | 0.5-10% | Stabilizes fragrance oils |
| Hair Care | 2-8% | 1-15% | Improves scent deposition |
Classic Accords
Tip: Use as a co-emulsifier with primary surfactants for optimal fragrance oil incorporation.
Alternatives & Comparisons
Alternative emulsifier with similar HLB properties, often used when natural-derived ingredients are preferred.
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 evaluated by RIFM as it is not a fragrance ingredient.
Sustainability
As a synthetic polymer, this material is petroleum-derived but requires relatively low energy inputs during manufacturing. Its high efficiency at low usage levels reduces overall environmental impact compared to some natural emulsifiers. Biodegradability depends on the degree of ethoxylation.
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References
- Cosmetic Ingredient Review Expert Panel (2012). Safety Assessment of Alkyl PEG Ethers as Used in Cosmetics. CIR Report
- EPA Chemical Data Access Tool record EPA Record
Data: PubChem (NIH), PubMed, RIFM, IFRA. Last reviewed: Apr 2026.
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