Cellulose, 2-hydroxyethyl ether (CAS 9004-62-0) — Citrus Non-aromatic Note Fragrance Ingredient
Cellulose, 2-hydroxyethyl ether
CAS 9004-62-0
What Is Cellulose, 2-hydroxyethyl ether?
Cellulose, 2-hydroxyethyl ether is a modified cellulose polymer commonly used as a thickener and stabilizer in cosmetics and personal care products. You’ll find it in lotions, shampoos, and other creamy formulations where texture control is important. While not a fragrance ingredient itself, it plays a crucial supporting role by modifying how fragrances release from products. Its ability to create smooth, stable emulsions helps fragrance oils disperse evenly and last longer on skin and hair.
Safety Profile
GENERALLY SAFEWhat Does Cellulose, 2-hydroxyethyl ether Smell Like?
This material is odorless, serving purely as a functional ingredient rather than contributing aromatic qualities. As a modified cellulose derivative, it provides viscosity control and emulsion stabilization without interfering with fragrance profiles. Its neutral character makes it compatible with virtually all scent families, from delicate florals to robust orientals.
In Famous Fragrances
Fragrance associations may not reflect actual formulations.
Chemistry, Properties & Perfumer Guide
The Chemistry
Cellulose, 2-hydroxyethyl ether is produced by reacting cellulose with ethylene oxide, introducing hydroxyethyl groups that increase water solubility while maintaining the polymer backbone. The degree of substitution determines its thickening properties. Unlike pure cellulose, this ether derivative forms clear solutions in water and can stabilize oil-water interfaces, making it valuable for fragrance delivery systems.
Physical & Chemical Properties
| Appearance | White to off-white powder |
|---|---|
| Solubility | Water-soluble |
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Lotions | 0.5-2% | Up to 5% | Viscosity modifier |
| Shampoos | 0.2-1% | Up to 3% | Stabilizer |
Classic Accords
Tip: Use to modify fragrance release rates in water-based systems without affecting scent profile.
Alternatives & Comparisons
Offers similar thickening properties with slightly different solubility characteristics.
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 cosmetic applications by RIFM.
Sustainability
Derived from renewable cellulose sources, this synthetic polymer offers an eco-friendly alternative to petroleum-based thickeners. The production process can be optimized for minimal environmental impact through controlled reaction conditions and efficient purification methods.
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