CAS number: 55268-74-1

Molecular formula: C19H24N2O2

molecular weight: 312.41

Chemical structure:

Name of Product:Praziquantel
Shelf Life:2 years
Test Items
SpecificationResults of Analysis
DescriptionWhite or almost white crystalline powderAlmost white crystalline powder
Identification (IR)The IR spectrum of the sample corresponds to the IR spectrum of the RSComplies
Ientification (HPLC)The retention time of the major peak from the sample solution corresponds to that of the standard solutionComplies
Loss on drying≤0.5%0.04%
Sulphated ash≤0.1%0.05%
Heavy metals≤20ppmComplies
Related substancesImpurity A≤0.2%0.08%
Impurity B≤0.2%0.04%
Any individual unspecified impurity≤0.1%0.07%
Total impurities ≤0.5%0.2%
Assay (on the anhydrous basis)97.5-102.0%100.1%
Residual solventsMethylene chloride ≤600ppm<25ppm
Acetone ≤5000ppm270ppm