Product name

Benserazide Hydrochloride

Appearance:

White or almost white crystal or powder. Freely soluble in water, slightly soluble in ethanol, insoluble in acetone.

pH value(in 1% solution):

4.0-5.0

Specific rotation:

-0.05 to +0.05

Impurity:

Impurity A

Individual other impurity

Total impurities

Not more than  0.5%

Not more than 0.5%

Not more than 1.0%

Loss on drying:

Not more than 1.0%

Residue on Ignition:

Not more than 0.1%

Heavy metals (Pb):

Not more than 10ppm

Assay

Not less than 98.5%