Barbituric acid/2,4,6-Trihydroxy pyrimidine/Malonylurea/2,4,6-Trioxohexahydropyrimidine

English Name: barbituric acid; 2,4,6-Trihydroxy pyrimidine； Malonylurea； 2,4,6-Trioxohexahydropyrimidine； 2,4,6-(1H,3H,5H) Pyrimidinetrione

Other names: malonyl urea; 2,4,6-trihydroxypyrimidine; Pyrimidine trione; Malonyl urea; Barbituric acid

CAS No.: 67-52-7

C4H4N2O3=128.09

Grade: CP

Content: ≥ 99.0%

Burning residue (calculated by sulfate): ≤ 0.1%

Drying loss: 21.0 ～ 23.0%

Sodium hydroxide dissolution test: acceptable

 Physicochemical Properties: white crystalline powder. It is strongly acidic. Salt is formed when meeting metal. Soluble in hot water and dilute acid, soluble in ether, slightly soluble in cold water. The melting point is about 248 ℃ (partial decomposition). Boiling point 260 ℃ (decomposition). Flash point >150 ℃. LD50 (male rats, oral) >5000mg/kg. Irritating.

Purpose: biochemical research. Colorimetric determination of furfural and pentosan. Organic synthesis

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