Synonyms: 2-Butenoicacid, 2-methyl-,8,9-dihydro-8-[1-methyl-1-[(2-methyl-1-oxo-2-butenyl)oxy]ethyl]-2-oxo-2H-furo[2,3-h]-1-benzopyran-9-ylester, [8S-[8a(Z),9a(Z)]]-; Archangelicin (6CI,7CI);Crotonic acid, 2-methyl-, diester with 8,9-dihydro-9-hydroxy-8-(1-hydroxy-1-methylethyl)-2H-furo[2,3-h]-1-benzopyran-2-one,stereoisomer (8CI); 2H-Furo[2,3-h]-1-benzopyran, 2-butenoic acid deriv.;Archangelicine