103833-72-3

LEVETIRACETAM ACID (R)-Etiracetam Acid Levetiracetam Carboxylic Acid (R)-Levetiracetam EP Impurity A Levetiracetam R-Carboxylic Acid (2R)-2-(2-oxopyrrolidin-1-yl)butanoicaci (R)-2-(2-oxopyrrolidin-1-yl)butyric acid (R)-α-Ethyl-2-oxo-1-Pyrrolidineaceticacid (R)-2-(2-oxopyrrolidin-1-yl)butanoic acid (2R)-2-(2-oxo-1-pyrrolidinyl)butanoic acid (R)-α-Ethyl-2-oxo-1-Pyrrolidineacetic acid (2R)-2-(2-oxopyrrolidin-1-yl)butanoic acid (R)-alpha-Ethyl-2-oxo-1-pyrrolidineacetic acid 1-Pyrrolidineacetic acid, α-ethyl-2-oxo-, (αR)- (.alpha.R)-.alpha.-ethyl-2-oxo-1-Pyrrolidineacetic acid (R)-alpha-Ethyl-2-oxo-1-pyrrolidineacetic acid (LevetiracetaM acid) Levetiracetam impurity 3/(R)-Levetiracetam EP Impurity A/Levetiracetam R-Carboxylic Acid/(R)-2-(2-oxopyrrolidin-1-yl)butanoic acid