Methyl Cedryl Ketone
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Chinese name: 甲基柏木酮
English name: Methyl Cedryl Ketone
Alias: Acetyl Cedrene
CAS No.: 32388-55-9
Key Characteristics
The most distinguished feature of methyl cedryl ketone lies in its extraordinary persistence. With a remarkably stable aroma and exceptionally slow evaporation rate, it acts as a powerful fixative that greatly extends the life of a fragrance. Even after several days or weeks, its elegant drydown remains distinct and perceptible.
This ingredient delivers a persistent and gentle woody base infused with nuances reminiscent of natural ambergris and soft musk. The scent is refined, clean, noble, and approachable—an indispensable cornerstone of modern amber compositions.
Methyl cedryl ketone blends seamlessly with a wide spectrum of fragrance materials, enhancing harmony and balance within the composition. It harmonizes well with floral, fruity, spicy, mossy, and leathery notes, enriching both complexity and depth.
Highly resistant to light, heat, acids, and alkalis, it is suitable for a broad range of product systems. It integrates well with nearly all fragrance types, especially woody, amber, musky, and oriental accords.
Primary Applications
A foundational note in men’s fragrances: Forms the backbone of fougère and woody accords, offering a steady, masculine, and warm character.
An enhancer in women’s fragrances: Adds depth, warmth, and persistence to oriental and unisex creations.
As a fixative: Stabilizes top and middle notes as the fixative, applicable across nearly all perfume categories.
Commonly used in shampoos, shower gels, lotions, powders, and soaps to impart a lasting and comforting woody background.
Widely applied in laundry detergents, fabric softeners, room sprays, candles, and diffusers. Its persistence makes it ideal for fabric adherence and slow ambient diffusion.
Exhibits exceptional stability in soap-making and delivers long-lasting scent, making it a commonly-used premium woody ingredient for soap formulations.
Usage Recommendations and Precautions
Dosage: As a powerful fixative, it is generally used at 1%–10% in final fragrance compositions, or even higher depending on the desired olfactory effect. Finished consumer products contain even lower concentrations.
Safety: Methyl cedryl ketone is safe within the usage limits specified for daily-use fragrances. It has been approved by the International Fragrance Association (IFRA) for usage in essences with no known allergen restrictions. Nevertheless, as a chemical, it is recommended that manufacturers adhere to best industrial hygiene practices during handling.
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- With floral notes: Such as lavender, bergamot (forming the classic fougère structure), rose, and patchouli.
- With other woody notes: Enhances nuance and depth when used with sandalwood, cedarwood, vetiver, and more.
- With spicy and leathery notes: Builds rich and masculine accords when paired with tonka bean, coumarin, birch tar oil, and more.
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