Cytosine
Cytosine 胞核嘧啶

Appearance White fine crystals

Assay 98.0 to 101.0%

Specific Rotation [20/D] °～°

Melting point

Chloride (Cl) Not more than 0.10%

Heavy Metals (Pb) Not more than 10 PPM

Loss on Drying Not more than 0.20%

Residue on Ignition (Sulfate) Not more than 0.20%