Items

Standards

Results

Appearance

White crystal powder

Complies

Solubility

Soluble in DMF, insoluble in ether

Complies

NMR and MS

Should comply

Comply

Identification

IR and HPLC

Complies

Appearance of solution

Dissolve0.5 gin 10 ml of DMF,

and the solution should be clear

Complies

Loss weight on drying

Max.0.5%

0.1%

Heavy metal

Max. 20ppm

Complies

p-Nitrophenol

Max. 50ppm

Complies

Assay by TLC

Min. 98%

99.4%