We are offering levetiracetam. levetiracetam is a drug which is used in epilepsy. product feature levetiracetam synonyms: (s)-2-(2-oxopyrrolidin-1-yl)butanamide product specification/models synonyms (s)-2-(2-oxopyrrolidin-1-yl)butanamide molecular formula: c8h14n2o2 molecular weight: 170.21 cas no: 102767-28-2 melting point :118-119 ã�âºc appearance:crystalline white powder purity:nlt 99% application anti convulsant drug.