Cyclopentadecanone

Cyclopentadecanone (CAS 502-72-7) is a macrocyclic musk ketone commercially known as Exaltone, Exalton, or Musk 15. It carries no assigned E-code and is identified under EC 207-951-2. The compound belongs to the macrocyclic musk family, distinguished from nitromusks and polycyclic musks by its 15-membered carbocyclic ring structure.

In fine fragrance and personal care formulations, cyclopentadecanone contributes a clean, animalic musk note with strong diffusion and fixative properties, extending the longevity of top and heart notes. It is also incorporated into coatings and printing ink systems where its low volatility helps anchor fragrance components and mask solvent odors during application and drying.

The material is supplied as a white crystalline powder meeting cosmetic and fragrance industry purity standards and falls under REACH registration requirements for EU market supply. Procurement quantities typically range from kilogram to multi-tonne lots. Buyers should confirm supplier documentation against IFRA guidelines and relevant REACH compliance records prior to formulation use.