Barbituric acid Synonyms:2,4,6(1H,3H,5H)-Pyrimidinetrione;2,4,6-Trihydroxy-1,3-diazine; Malonylurea Description: Molecular Formula C4H4N2O3 Molecular Weight 128.09 CAS NO: 67-52-7 Purity: ≥99% Melting point 253?℃ Characteristics: Propinquity white crystalline power Loss on drying: ≤0.5% Sulphated ash: ≤0.1% Packing:25kg/paper drum