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DEA-OLETH-5 PHOSPHATE

CAS 58855-63-3
51

Safety score · 0–100

Moderate

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

A DEA-salt form of an ethoxylated oleyl alcohol phosphate ester surfactant subject to EU restrictions due to diethanolamine content and associated nitrosamine formation risk in cosmetic products.

Bis(2-hydroxyethyl)ammonium salt of ethoxylated oleyl alcohol phosphate ester (5 mol EO average). Listed in EU Regulation (EC) No 1223/2009 Annex II under reference II/411, prohibiting its use in cosmetic products. The DEA moiety presents a nitrosation risk, forming N-nitrosodiethanolamine (NDELA), a suspected carcinogen. This restriction supersedes any functional benefit as a phosphate ester emulsifier.

Known concerns

  • EU Annex II restricted — prohibited in cosmetic products
  • DEA content may form carcinogenic nitrosamines
  • Contains a primary/secondary amine susceptible to nitrosation

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, so always read the physical product label and consult a healthcare professional for personal concerns.