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Fragrance

NONANAL

CAS 124-19-6
82

Safety score · 0–100

Good

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

Nonanal (aldehyde C-9) — a nine-carbon aldehyde with fresh rose-citrus character. Naturally present in rose and citrus oils; well-studied perfumery aldehyde.

Nonanal (pelargonaldehyde, aldehyde C-9, CAS 124-19-6) is a saturated nine-carbon aldehyde widely used in perfumery and as FEMA GRAS flavor (FEMA 2782). Naturally occurring in rose, citrus, and many other essential oils. Pure material carries mild GHS skin/eye irritation labels; cosmetic use is at trace levels with a robust RIFM/IFRA safety record. Not on EU Annex II.

Function

PERFUMING

Skin benefits

  • Fresh rose-citrus fragrance note
  • Naturally abundant
  • Well-characterized dossier

Known concerns

  • Mild irritation if neat
  • Aldehyde class oxidation stability

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.