2-Phenyl-1,3,4-oxadiazol-2-in-5-one is a chemical compound that contains a phenyl group (C6H5) attached to a 1,3,4-oxadiazole ring. Specifically, it's a 1,3,4-oxadiazole with a phenyl substituent at the 2-position and a carbonyl group (C=O) at the 5-position.