Synonyms: NSC140643;AC1L9LR3;MolPort-003-698-926;NSC-140643;OR28547;S13996;3,7-dimethyl-11,16-dioxapentacyclo[6.5.5.0~1,6~.0~9,13~.0~14,18~]octadec-6-ene-10,12,15,17-tetrone;32251-38-0;3H-4,4']-Furanonaphtho[1,2-c]furan-1,3,11,13(4H)-tetrone, 3a,6,7,8,9,9b,10,14-octahydro-5,8-dimethyl-;3H-4,9a[3',4']-Furanonaphtho[1,2-c]furan-1,3,11,13(4H)-tetrone, 3a,6,7,8,9,9b,10,14-octahydro-5,8-dimethyl-