Levetiracetam Impurity - A

Etiracetam Carboxylic Acid; α-Ethyl-2-oxo-1-pyrrolidineacetic Acid; 2-Pyrrolidone-N-butyric Acid; (2RS)-2-(2-Oxopyrrolidin-1-yl)butanoic Acid; Levetiracetam Impurity A (IP);