Synonyms:

[3aR-(3aa,5b,8ab,9aa)]-3a,5,6,7,8,8a,9,9a-Octahydro-5,8a-dimethyl-3-methylenenaphtho-[2,3-b]furan-2(3H)-one; 8b-hydroxy-4aH-eudesm-5-en-12-oic acid; gamma-lactone; Helenin; Alant camphor; Elecampane camphor; Inula camphor; Eupatal.

Uses:

Sesquiterpene lactone present in, e.g., species of Chrysanthemum plants (Helenin).