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(1R,4E,9S)-4,11,11-- Trimethyl- 8-methylenebicyclo [7.2.0]undec- 4-ene

CAS 87-44-5
28

Safety score · 0–100

Caution

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

A cosmetic ingredient used in product formulation. Exercise caution due to limited available safety data.

(1R,4E,9S)-4,11,11-Trimethyl-8-methylenebicyclo[7.2.0]undec-4-ene is a sesquiterpene found in clove, rosemary, and cannabis. It carries EU CLP classifications H304 (aspiration toxicity) and H317 (skin sensitization). IFRA restricts its use due to sensitization. Not recommended for use in lip or oral care products.

Skin benefits

  • Fragrance ingredient
  • Anti-inflammatory properties reported in literature

Known concerns

  • Aspiration toxicity hazard (H304)
  • Skin sensitization hazard (H317)
  • IFRA restriction applies
  • Not for use in lip/oral products

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.