Methylheptenone (isomer unspecified)

At a glance

Synthetic 6‑methyl‑5‑hepten‑2‑one, a clear liquid with fresh citrus‑fruit, pineapple‑green notes used in perfumery for bright top‑notes. It is valued by perfumers for this distinctive character and used as a building block within larger fragrance compositions.

Category
⚗️ Synthetic
Origin
synthetic production
Extraction
Chemical synthesis
Chemical family
Unsaturated ketone
CAS number
409-02-9
Profile
fresh, green, woody
IFRA status
Not restricted
● drafted · last checked 2026-09-01