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TETRAMETHYL-4-METHYLENEHEPTAN-2-ONE

CAS 81786-75-6
44

Safety score · 0–100

Moderate

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

About

TETRAMETHYL-4-METHYLENEHEPTAN-2-ONE is a cosmetic ingredient used in product formulation. Exercise caution due to limited available safety data.

Tetramethyl-4-methyleneheptan-2-one carries H317 (skin sensitizer), H411 (aquatic chronic toxicity), and H412 (aquatic chronic toxicity) classifications. It is not formally listed in EU Annex III restrictions but its H317 classification requires allergen declaration above threshold. The methylene group adds unsaturation, potentially increasing reactivity. IFRA guidelines would typically apply concentration limits for this type of fragrance material.

Known concerns

  • Skin sensitizer (H317)
  • Aquatic chronic toxicity (H411, H412)
  • Fragrance allergen declaration required

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.