2-Benzo-furanacetonitrile 2-Benzofuranpropanenitrile, beta-oxo- 2-Benzofuranpropionitrile, beta-oxo- 2-Cyanoacetylcoumarone 4-18-00-05598 (Beilstein Handbook Reference) 5149-69-9 BENZOFURAN, 2-CYANOACETYL- BRN 0146419 USAF KF-4