IUPAC:7,16,18-trichloro-11,22-dihydroxy-4,19,19-trimethyl-8-methylidene-20-oxatetracyclo[11.7.1.1^{10,14}.0^{1,16}]docosa-3,10,12,14(22)-tetraene-15,21-dione
IUPAC:7,16,18-trichloro-11,22-dihydroxy-4,19,19-trimethyl-8-methylidene-20-oxatetracyclo[11.7.1.1^{10,14}.0^{1,16}]docosa-3,10,12,14(22)-tetraene-15,21-dione