英文别名DIETHYL PHTHALIDE-3-PHOSPHONATE; 3-diethoxyphosphoryl-3H-2-benzofuran-1-one; Phosphonic acid, P-(1,3-dihydro-3-oxo-1-isobenzofuranyl)-, diethyl ester; 3-diethoxyphosphoryl-3H-isobenzofuran-1-one; diethyl 3-oxo-1,3-dihydro-2-benzofuran-1-ylphosphonate; Diethyl1-oxoisobenzofuran-3-ylphosphonate; Phthalidylphosphonsaeure-diaethylester; diethyl phthalide-3-yl-phosphonate