(Z)-4-[(1S,2S,8S,15S,16S,17S,19R)-12,16-dihydroxy-8,21,21-trimethyl-5-(3-methylbut-2-enyl)-8-(4-methylpent-3-enyl)-14,18-dioxo-3,7,20-trioxahexacyclo[15.4.1.02,15.02,19.04,13.06,11]docosa-4(13),5,9,11-tetraen-19-yl]-2-methylbut-2-enoic acid

Chemical details from database.