1a-Isopropyl-4,7-dimethyl-1a,3,4,4a,5,7b-hexahydro-2H-1-oxa-cyclopropa[e]azulen-6-one 6beta,7beta-Epoxyguai-4-en-3-one InChI=1/C15H22O2/c1-8(2)15-6-5-9(3)11-7-12(16)10(4)13(11)14(15)17-15/h8-9,11,14H,5-7H2,1-4H3/t9-,11-,14-,15?/m0/s azuleno[4,5-b]oxiren-6(2H)-one, 1a,3,4,4a,5,7b-hexahydro-4,7-dimethyl-1a-(1-methylethyl)-, (1aS,4S,4aS,7bS)- rel-(1aR,4R,4aR,7bR)-1a-isopropyl-4,7-dimethyl-1a,3,4,4a,5,7b-hexahydroazuleno[4,5-b]oxiren-6(2H)-one