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2,6-DIMETHYL-4-HEPTANONE

CAS 108-83-8
67

Safety score · 0–100

Fine

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

About

A branched-chain ketone fragrance with a citrusy, herbal odor profile, widely used in perfumery as a fragrance component with no major EU restrictions.

2,6-Dimethyl-4-heptanone (diisobutyl ketone, DIBK) is a symmetrical ketone with a citrusy, herbal, slightly woody odor profile. It is used both as a fragrance ingredient and as a solvent in cosmetic formulations. It has a long history of industrial and fragrance use with no significant EU cosmetic restrictions. It is not listed in any EU Annex requiring prohibition or special restrictions.

Skin benefits

  • Provides citrus, herbal fragrance notes
  • Used as fragrance modifier and component
  • Functions as fragrance fixative at low levels

Known concerns

  • May cause mild skin irritation at high concentrations
  • Generally safe at normal use levels
  • Low-level respiratory tract irritation possible in aerosol products
  • Requires allergen declaration if derived from natural sources

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.