2-Propenoic acid, 3-(4-hydroxy-5-benzofuranyl)-, delta-lactone 2H-Furo(2,3-H)-1-benzopyran-2-one 2H-Furo(2,3-h)(1)benzopyran-2-one 3-(4-Hydroxy-5-benzofuranyl)-2-propenoic acid gamma-lactone 39310-13-9 4-Hydroxy-5-benzofuranacrylic acid gamma-lactone 5-19-04-00447 (Beilstein Handbook Reference) 523-50-2 Angecin Angelicin Angelicin (VAN) Angelicin (coumarin deriv) Angelicin (coumarin derivative) Angelicin plus ultraviolet A radiation [Angelicins] BRN 0153970 CCRIS 4276 Furo(2,3-h)coumarin Furo(5',4':7,8)coumarin HSDB 3554 ISOPSORALEN NSC 404563