CAS: 90-16-4 Molecular Formula: C7H5N3O Molecular Weight (g/mol): 147.137 MDL Number: MFCD00052387 InChI Key: DMSSTTLDFWKBSX-UHFFFAOYSA-N Synonym: 1,2,3-benzotriazin-4 3h-one,1,2,3-benzotriazin-4 1h-one,benzazimidone,benzazimide,1,2,3-benzotriazin-4-ol,4-ketobenzotriazine,benzoketotriazine,usaf ma-2,3h-1,2,3-benzotriazin-4-one,4-ketobenz-1,2,3-triazine PubChem CID: 7006 IUPAC Name: 1H-1,2,3-benzotriazin-4-one SMILES: C1=CC=C2C(=C1)C(=O)N=NN2