Items

Specification

Appearance:

White crystalline powder.

Identification:

IR

Chloride

Concordant with R.S

Solubility

Meet USP28

Specific rotation:

+43 to +50

pH value(in 1% solution):

2.0-3.0

Cytosine

Not more than 0.1%

a-anomer

Not more than 0.1%

Sum of impurities

Not more than 0.2%

Loss on drying:

Not more than 1.0%

Residue on Ignition:

Not more than 0.1%

Heavy metals (Pb):

Not more than 10ppm

Assay (by HPLC):

97.5-101.5%