11,16,18,19-Tetraoxapentacyclo(12.2.2.1(sup 6,9).0(sup 1,15).0(10,12))nonadeca-6,8-diene-7-carboxaldehyde, 2-(acetyloxy)-12-methyl-4-(1-methylethenyl)-17-oxo-, (1R-(1R*,2S*,4S*,10R*,12R*,14R*,15R*))- 11,16,18,19-Tetraoxapentacyclo(12.2.2.16,9.01,15.010,12)nonadeca-6,8-diene-7-carboxaldehyde, 2-(acetyloxy)-12-methyl-4-(1-methylethenyl)-17-oxo-, (1R,2S,4S,10R,12R,14R,15R)- 11,16,18,19-Tetraoxapentacyclo(12.2.2.16,9.01,15.010,12)nonadeca-6,8-diene-7-carboxaldehyde, 2-(acetyloxy)-12-methyl-4-(1-methylethenyl)-17-oxo-, (1R-(1R*,2S*,4S*,10R*,12R*,14R*,15R*))- 78697-56-0 BRN 4339458 Lophotoxin