Fragrance
CYCLOPENTADECANONE
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
Exaltone — a macrocyclic musk fragrance ingredient with a warm, powdery musk character. Biodegradable and RIFM-assessed.
Cyclopentadecanone (CAS 502-72-7), trade name Exaltone, is a 15-membered macrocyclic ketone with a musk odour profile. It is a well-established perfumery ingredient and one of the preferred biodegradable alternatives to nitro and polycyclic musks (which have environmental concerns). RIFM and IFRA have reviewed it and set usage-level guidance for finished products. EU CosIng lists it for fragrance and masking functions. No SCCS restriction as an individual compound. Not a strong sensitizer but, like most fragrance molecules, excessive use can provoke reactions in sensitive users.
Function
Skin benefits
- Musk-like macrocyclic fragrance ingredient
- Biodegradable alternative to nitro musks
- Long history of perfumery use
Known concerns
- Fragrance component — can sensitize at high exposure
- RIFM/IFRA usage limits apply
- Not for leave-on use at high concentrations
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related fragrances
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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.