英文别名1-OXO-1,3-DIHYDRO-2-BENZOFURAN-4-CARBONITRILE; 4-CYANOPHTHALIDE; 1-OXO-1,3-DIHYDRO-ISOBENZOFURAN-4-CARBONITRILE; 4-Isobenzofurancarbonitrile, 1,3-dihydro-1-oxo-; 1-oxo-3H-2-benzofuran-4-carbonitrile; 1-oxo-3H-isobenzofuran-4-carbonitrile; 4-Cyanphthalid; 3-cyano-phthalide