Iupac name: 3-Cyanobenzoic acid CAS: 1877-72-1 EINECSú¦217-511-1 Synonyms: 3-Cyano Benzoic Acid; 3-Carboxybenzonitrile M-Cyano Benzoic Acid; Cyanobenzoicacid Molecular Formula: C8H5NO2 Molecular weight: 147.1332 Melting Point (C): 217 ¿C 222 Appearance: yellow crystalline powder.