IUPAC:(2S,5R,6S,9R,13S,16S,18R)-5,16-dihydroxy-2,6,13,17,17-pentamethyl-6-(4-methylpentyl)-7-oxapentacyclo[10.8.0.0^{2,9}.0^{5,9}.0^{13,18}]icosa-1(20),11-dien-8-one
IUPAC:(2S,5R,6S,9R,13S,16S,18R)-5,16-dihydroxy-2,6,13,17,17-pentamethyl-6-(4-methylpentyl)-7-oxapentacyclo[10.8.0.0^{2,9}.0^{5,9}.0^{13,18}]icosa-1(20),11-dien-8-one