Synonyms: 2H-3,11c-(Epoxymethano)phenanthro(10,1-bc)pyran, picras-3-en-21-oic acid deriv. (9CI);Picras-3-en-21-oic acid, 15-[ (3,4-dimethyl-1-oxo-2-pentenyl)oxy]-13,20-epoxy-3,11, 12-trihydroxy-2,16-dioxo-, methyl ester, (11.beta.,12.alpha., 15.beta.(E))-;15-[(3,4-Dimethyl-1-oxo-2-pentenyl)oxy]-13,20-epoxy-3,11,12-trihydroxy-2,16-dioxopicras-3-en-21-oic acid methyl ester;Picras-3-en-21-oic acid,15-[[(2E)-3,4-dimethyl-1-oxo-2- pentenyl]oxy]-13,20-epoxy-3,11,12-trihydroxy- 2,16-dioxo-,methyl ester,(11a,12R,15a)-;2H-3, 11c- (Epoxymethano)phenanthro[10,1-bc]pyran, picras-3-en-21-oic acid deriv.;Quassinoid;Picras-3-en-21-oic acid, 15-((3,4-dimethyl-1-oxo-2-pentenyl)oxy)-13,20-epoxy-3,11,12-trihydroxy-2,16-dioxo-, methyl ester, (11beta,12alpha,15beta(E))- (9CI);Picras-3-en-21-oic acid, 15-[(3, 4-dimethyl-1-oxo-2-pentenyl)oxy]-13,20-epoxy-3,11,12-trihydroxy-2, 16-dioxo-, methyl ester, [11.beta.,12.alpha.,15.beta.(E)]-;Picras-3-en-21-oic acid, 15-[(3, 4-dimethyl-1-oxo-2-pentenyl)oxy]-13,20-epoxy-3,11,12-trihydroxy-2, 16-dioxo-, methyl ester [11.beta.,12.alpha.,15.beta.(E]-;BRUCEANTIN, 99%;Brucea Javanica Oil;