2H-Furo(2,3-h)(1)benzopyran-2-one, 4,8-dimethyl- 4,5'-Dimethyl angelicin 4,5'-Dimethylangelicin 4,5'-Dimethylangelicin plus ultraviolet A radiation [Angelicins] 4,8-DIMETHYL-2H-FURO(2,3-h)-1-BENZOPYRAN-2-ONE 4,8-Dimethylisopsoralen 4063-41-6 5-19-04-00467 (Beilstein Handbook Reference) 5-Benzofuranacrylic acid, 4-hydroxy-beta,2-dimethyl-, delta-lactone BRN 0189530