9-UNDECENAL

Fragrance

48

Caution

CAS Number: 143-14-6

About 9-UNDECENAL

A fragrance aldehyde with notable irritation and allergy potential, especially for sensitive skin.

Detailed Analysis

9-Undecenal is an unsaturated fragrance aldehyde used to add waxy, floral notes. The batch lists H315, H317, and H319, showing irritation and sensitization potential, plus aquatic-toxicity codes. For topical use it is best treated as a higher-risk fragrance material rather than a skin benefit ingredient.

What It Does

PERFUMING

Known Concerns

  • ⚠ Skin irritant and sensitizer
  • ⚠ Eye irritation potential
  • ⚠ Aquatic toxicity concern

Safety Score

48

Caution

Based on EU regulatory data, published safety research, and ingredient function analysis.

References

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EU CosIng Database

European Commission cosmetic ingredient registry

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This information is for educational purposes only and does not constitute medical advice. Always consult a healthcare professional for skin concerns or allergies.