IUPAC:(1S,11S,12R,13R,15R,16R,19S)-8,19-dimethyl-14,17-dioxahexacyclo[13.3.1.0^{1,11}.0^{4,10}.0^{9,13}.0^{12,16}]nonadeca-4,7,9-triene-6,18-dione
IUPAC:(1S,11S,12R,13R,15R,16R,19S)-8,19-dimethyl-14,17-dioxahexacyclo[13.3.1.0^{1,11}.0^{4,10}.0^{9,13}.0^{12,16}]nonadeca-4,7,9-triene-6,18-dione