PHTHALIDEisobenzofuran-1(3H)-one苯酞2-苯并呋喃酮1-IsobenzofuranonePhthalolactonePhthalide1(3H)-Isobenzofuranone1-Phthalanone3-oxo-1,3-dihydro-isobenzofuranisobenzofuranonephthalide2-benzofuran-1(3H)-one2-Hydroxymethylbenzoic acid, gamma-lactone1(3H)-isobenzofuranonePhthalolactone