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Molecular Formula:C8H14N2O2
Molecular Weight:170.2106
CAS Registry No: 102767-28-2
Systematic Name:
  • (S)-alpha-Ethyl-2-oxo-1-pyrrolidineacetamide
  • 1-Pyrrolidineacetamide, alpha-ethyl-2-oxo-, (S)-
StoragePreserve in well-closed containers, and store at room temperature
Shelf Life2 year(s)
Appearance white to almost white powder
Solubility very soluble in water; soluble in acetonitrile; practically insoluble in hexane
Identification a) Infrared Absorption
b) The retention time of the major peak for levetiracetam from the Sample solution corresponds to that of the levetiracetam S-enantiomer from the System suitability solution, as obtained in the test for Limit of Levetiracetam R-Enantiomer
Residue on Ignition Not More Than 0.1%
Heavy Metals20 ppm
Water DeterminationNot More Than 0.5%
ASSAYNot Less Than 98.0% and Not More Than 102.0%
1)calculated on the anhydrous and solvent-free basis
Pharmacopoeial QualityUSP