英文别名1,3-Dihydro-1-oxoisobenzofuran-6-carbonitrile; 3-oxo-1,3-dihydro-2-benzofuran-5-carbonitrile; Chlortalidone Impurity 18; Chlortalidone Impurity 8; 3-oxo-1H-2-benzofuran-5-carbonitrile; 5-Isobenzofurancarbonitrile, 1,3-dihydro-3-oxo-; 3-Oxo-phthalan-5-carbonitril; 3-oxo-phthalan-5-carbonitrile; 6-cyanoisobenzofuran-1(3H)-one; 5-Isobenzofurancarbonitrile,1,3-dihydro-3-oxo; 1-oxo-1,3-dihydroisobenzofuran-6-carbonitrile 
