IUPAC:(1S,4S,5R,8R,13S,14R,17S,18R)-4,5,9,9,13,20,20-heptamethyl-24-oxahexacyclo[15.5.2.0^{1,18}.0^{4,17}.0^{5,14}.0^{8,13}]tetracos-15-ene-10,23-dione
IUPAC:(1S,4S,5R,8R,13S,14R,17S,18R)-4,5,9,9,13,20,20-heptamethyl-24-oxahexacyclo[15.5.2.0^{1,18}.0^{4,17}.0^{5,14}.0^{8,13}]tetracos-15-ene-10,23-dione