5-Cyanophthalide Product Name: 5-Cyanophthalide Synonyms: 5-CYANO-3H-ISOBENZOFURANONE;5-CYANOPHTHALIDE;1,3-DIHYDRO-1-OXO-5-ISOBENZOFURANCARBONITRILE;1,3-DIHYDRO-1-OXOISOBENZOFURAN-5-CARBONITRILE;1-OXO-1,3-DIHYDRO-2-BENZOFURAN-5-CARBONITRILE;5-Phthalidenitrile;5-CYANO- ...