1-[(2R)-2-prop-1-en-2-yl-2,3-dihydro-1-benzofuran-5-yl]ethanone 1-[(2R)-2-isopropenyl-2,3-dihydrobenzofuran-5-yl]ethanone 4976-25-4 AI3-44563 Ethanone, 1-(2,3-dihydro-2-(1-methylethenyl)-5-benzofuranyl)-, (R)- (9CI) Ketone, 2,3-dihydro-2-isopropenyl-5-benzofuranyl methyl (8CI) NSC 247531 C08992 Tremetone