Anthelmintic isolated from the dried unexpanded flower heads of Artemisia maritima and other species of Artemisia found principally in Russian and Chinese Turkestan and the Southern Ural region. (From Merck, 11th ed.)

Synonyms: Santonin, 1VL8J38ERO, Naphtho(1,2-b)furan-2,8(3H,4H)-dione, 3a,5,5a,9b-tetrahydro-3,5a,9-trimethyl-, (3S-(3alpha,3aalpha,5abeta,9bbeta))-