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PERFLUOROHEXYLETHYL TRIETHOXYSILANE

CAS 51851-37-7
25

Safety score · 0–100

Caution

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

Perfluorohexylethyl Triethoxysilane is a cosmetic ingredient. Exercise caution due to limited available safety data.

Perfluorohexylethyl Triethoxysilane is a perfluoroalkyl silane coupling agent with GHS hazard statements H315, H319, and H335 indicating skin, eye, and respiratory irritation. More critically, the perfluorohexyl (C6F13) chain is a PFAS precursor with environmental persistence concerns. The EU has been progressively restricting PFAS compounds in consumer products, making this class increasingly controversial in cosmetics.

Known concerns

  • H315 — skin irritation
  • H319 — eye irritation
  • H335 — respiratory irritation
  • PFAS — environmental persistence and bioaccumulation concern
  • EU regulatory scrutiny on perfluoro compounds

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.