Shelf Life

4 years

Packing

25kg/drum

Specification

CVP2015/BP2011

Items

Standard

Appearance

Yellow, crystalline powder, hygroscopic.

Solubility

Freely soluble in water, sparingly soluble in alcohol.

Identification

Tin-layer chromatography results.

Colour reaction with sulfuric acid.

Give reaction (a) of chlorides

pH

2.3~2.9

Specific optical rotation

-188~-200

Specific absorbance

270~290

Light-absorbing impurities

430nm =0.50

490nm =0.20

Related substances

Impurity A =0.5%

Impurity B =2.0%

Impurity C =2.0%

Total of impurities D,E and F =2.0%

Disregard limit =0.1%

Heavy metals

=50ppm

Water

=2.0%

Sulphated Ash

=0.5%

Bacterial endotoxins

<0.4IU/mg

Assay (On the anhydrous basis)
It contains C22H24N2O9·HCl

95.0%~102.0%