4,7-Octadienoic acid, methyl ester, (4E)-

At a glance

Synthetic methyl (E)-4,7‑octadienoate is a volatile ester with bright fruity‑green notes reminiscent of apple and pineapple, used as a top‑note in perfumery.

Category
⚗️ Synthetic
Origin
Synthetic (lab‑produced)
Extraction
Chemical synthesis
Chemical family
Acid
CAS number
189440-77-5
IFRA status
Not restricted
● drafted · last checked 2026-09-01