2H-FURO(2,3-H)(1)BENZOPYRAN-2-ONE, 5-METHYL- 4-Hydroxy-6-methyl-5-benzofuranacrylic acid gamma-lactone 5-Methyl-2H-furo(2,3-h)-1-benzopyran-2-one 5-Methylangelicin 5-Methylangelicin plus ultraviolet A radiation [Angelicins] 73459-03-7 BRN 4428822