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OLETH-4 PHOSPHATE

CAS 39464-69-2
82

Safety score · 0–100

Good

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

About

A low-ethoxylation oleyl alcohol phosphate ester emulsifier used in cosmetic formulations, offering a balance between lipophilicity and water dispersibility, with minimal regulatory concerns in the EU at current use concentrations.

Poly(oxy-1,2-ethanediyl), α-9-octadecenyl-ω-hydroxy-(Z)-, phosphate with an average of 4 mol EO. Functions as an anionic emulsifier and co-surfactant. No EU restriction entries in Regulation (EC) No 1223/2009; listed in CosIng without Annex II or III classification. The 4 mol EO chain is similar to the 2 mol EO analogue in overall lipophilic character but provides slightly better water dispersibility. The phosphate ester linkage is hydrolytically stable under cosmetic formulation conditions.

Skin benefits

  • Versatile W/O and O/W emulsifier depending on formulation context
  • Provides stable emulsion performance

References

EU

EU CosIng database

European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.

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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.