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Fragrance

HEPTANAL

CAS 111-71-7
78

Safety score · 0–100

Fine

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

About

A simple seven-carbon aldehyde (heptaldehyde) with a green-citrus odor. Well-characterized fragrance aldehyde with standard irritation caveats.

Heptanal (heptaldehyde, CAS 111-71-7) is a saturated seven-carbon aldehyde occurring naturally in grapes, olives, and citrus peel oils. Widely used in perfumery for green-fatty-citrus top notes. Pure heptanal carries GHS skin/eye irritation labels, but cosmetic use levels (ppm range in finished products) are safe per RIFM/IFRA evaluations. Food-industry FEMA GRAS status (2540) adds weight to its safety database.

Function

PERFUMING

Skin benefits

  • Green-citrus aldehyde top note
  • Well-studied fragrance material

Known concerns

  • Irritant if neat
  • Oxidation potential
  • Aldehyde class caveats

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.