CAS: 67-52-7 Molecular Formula: C4H4N2O3 Molecular Weight (g/mol): 128.09 InChI Key: HNYOPLTXPVRDBG-UHFFFAOYSA-N Synonym: 1,3-Diazinane-2,4,6-trione, Malonylurea, 2,4,6-Pyrimidinetrione IUPAC Name: 1,3-diazinane-2,4,6-trione SMILES: O=C1CC(=O)NC(=O)N1