Uracil / 2,4-dihydroxypyrimidine / 2,4 - (1H, 3H) - pyrimidine Dione / Yuxue / 2,6-Dihydroxy

English name：Uracil；2,6-Dihydroxypyrimidine；2,4-(1H,3H)-Pyrimidinedione ；2,4-Dihydroxypyr-imidine；2,4-Dioxopyrimidine；2,4-Pyrimidinediol  

Other names:2,4 - (1H, 3H) - pyrimidinedione; By snow; 2,6-Dihydroxy; 1,3-diazobenzene; Cytosine; Killing Kuding; Cytosine; Withered leaves

CAS No.: 66-22-8

C4H4N2O2=112.09

Grade: high putty grade

Content: ≥ 98.0%

Melting point: > 300 ℃

Loss on drying: ≤ 1.0%

Heavy metal: ≤ 20ppm

Physicochemical properties: white or light yellow crystal. Dissolve 0.358 part of this product in 100 parts of water at 25 ℃. It is easily soluble in hot water, soluble in ammonium hydroxide and other alkalis, slightly soluble in cold water, and almost insoluble in ethanol and ether. Maximum absorption wavelength (pH 7.0) 202.5, 259.5nm（ ε× 10-3 9.2、8.2)。

Purpose: biochemical research. Organic synthesis

Saving: RT