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Risperidal
Name:risperidone
CAS:106266-06-2
MF:C23H27FN4O2
MW:410.48
Boiling point:572.4oC at 760 mmHg
Item of testing  Standard
Appearance  White or almost white powder
Solubility Practically insoluble in water;freely soluble in 
methylene chloride,sparingly soluble in ethanol(96%).
It  dissolves in dilute acid solutions 
Identification  Conforms to spectrum of Risperidone CRS 
Appearance of solution  The solution is clear and colorless 
Loss on drying  Not more than 0.5% 
Sulphate ash Not more than 0.1%
Residue solvents Ethanol : Not more than 0.5%
  N,N-dimethylformamide: Not more than 0.088%
Related substances       Impurity A: ≤ 0.2%
Impurity B: ≤ 0.2%
Impurity C: ≤ 0.2%
Impurity D: ≤ 0.2%
Impurity E: ≤ 0.2%
Impurity K: ≤ 0.15%
Single unknown impurity: ≤ 0.10%
Total impurities: ≤ 0.3%
Assay  99.0-101.0% (dried substances)
Uses: antipsychotic
Packing: 1kg/can, 5kg/can
Storage: Sealed, in dark place