Synonyms: 2H-1-Benzopyran-6-propanoicacid,3,4-dihydro-5-hydroxy-7-methoxy-2,3-dimethyl-8-(3-methyl-2-butenyl)-4-oxo-b-pentyl-, (bR,2S,3R)- (9CI);2H-1-Benzopyran-6-propanoic acid,3,4-dihydro-5-hydroxy-7-methoxy-2,3-dimethyl-8-(3-methyl-2-butenyl)-4-oxo-b-pentyl-, [2S-[2a,3a,6(S*)]]-; Isopapuanic acid