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experimental UV absorber

3-Diethylaminopropyl cinnamate

CAS 538-66-9
38

Safety score · 0–100

Caution

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

A diethylamino cinnamate ester explored as a UV absorber. It is not on the EU list of approved sunscreen filters, and the amine plus cinnamate structure carries sensitisation concerns.

Skin benefits

  • Cinnamate scaffold provides some UV-absorbing capacity
  • Studied historically as an experimental UV filter

Known concerns

  • Tertiary amine plus cinnamate raises sensitisation and irritation risk
  • Not an SCCS-approved UV filter under EU cosmetics regulation
  • Diethylamine residues are a known impurity concern
  • Cinnamate esters are a frequent contact allergen class

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.