Synonyms: 4H-1-Benzopyran-4-one,3-[5-(1,1-dimethyl-2-propenyl)-2-hydroxy-3,4-dimethoxyphenyl]-2,3-dihydro-7-hydroxy-,(3R)- (9CI); 4H-1-Benzopyran-4-one,3-[5-(1,1-dimethyl-2-propenyl)-2-hydroxy-3,4-dimethoxyphenyl]-2,3-dihydro-7-hydroxy-,(R)-; Pervilleanone