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Fragrance

DIMETHYL DECADIENAL

CAS 762-26-5 Updated
55

Safety score · 0–100

Moderate

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

About

A floral-citrus fragrance aldehyde (5,9-dimethyl-4,8-decadienal). Adds aroma in tiny amounts. Listed as a skin sensitizer and very toxic to aquatic life, so used at strict IFRA limits.

Function

FRAGRANCEPERFUMING

Skin benefits

  • Citrus-floral fragrance aldehyde
  • Provides scent in low %
  • Volatile aroma chemical

Known concerns

  • May cause allergic skin reaction (H317)
  • Very toxic to aquatic life (H400/H410)
  • Reactive aldehyde sensitizer
  • IFRA use limits typically apply

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.