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Fragrance

D-TRIMETHYL-3-CYCLOPENTENE-1-ACETALDEHYDE

CAS 4501-58-0
60

Safety score · 0–100

Fine

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

A woody-sandalwood fragrance aldehyde from alpha-pinene. Building block for sandalwood-style scents. Used at low ppm — concentrated form is a skin and eye irritant.

Skin benefits

  • Woody-sandalwood scent
  • Used as fragrance building block
  • Synthetic alternative to sandalwood oil

Known concerns

  • Possible skin sensitizer per IFRA monographs
  • Eye and skin irritant in concentrated form
  • Use within IFRA category limits

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.