Synonyms: [1]Benzopyrano[3,4-b]furo[2,3-h][1]benzopyran-6(6aH)-one,2-[1-(chloromethyl)ethenyl]-1,2,12,12a-tetrahydro-8,9-dimethoxy-, [2R-(2a,6aa,12aa)]-; [1]Benzopyrano[3,4-b]furo[2,3-h][1]benzopyran-6(6aH)-one,2-[1-(chloromethyl)vinyl]-1,2,12,12a-tetrahydro-8,9-dimethoxy- (8CI); 24-Chlororotenone;Rotenone, 24-chloro-