Molecular Formula: C19H20O5 Formula Weight: 328.36
(+)-Decursin;(7S)-7,8-Dihydro-8,8-dimethyl-2-oxo-2H,6H-benzo[1,2-b:5,4-b′]dipyran-7-yl 3-methyl-2-butenoate;3-Methyl-2-butenoic acid (7S)-7,8-dihydro-8,8-dimethyl-2-oxo-2H,6H-pyrano[3,2-g]-1-benzopyran-7-yl ester