Appearance:whiteorpaleyell
Appearance : white or pale yellow crystalline powder
Identification 1) according to JP14
2)UVλmax=282-286;
λmax=242-248
3)IR
Related Substance HPLC;The sum of the areas of
secondary peak (deducting fumaric acid peak)
Is not reater than 1.0 % the sum area of peak.
Water 4.0-5.0% .the method of K.F
Sulphate Ash 0.1 % max
Heavy Metal 20ppm max Complies
Assay It contains not less than 98.5% of
C19H24N2O4.1/2C4H4O4 calculated
With refernce to the anhydrous substance
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