2-PYRROLIDONE 

alpha-Pyrrolidone; gamma-Butyrolactam; 2-Pyrrolidinone; alpha-Pyrrolidone; gamma-Aminobutyric lactam; gamma-Aminobutyrolactam; Butyrolactam; 2-Oxopyrrolidine; 2-Pyrol; 4-Aminobutyric acid lactam; gamma-aminobutyric acid lactam;pyrrolidin-2-one tetrahydropyrrolone 2- pyrrolidinone alpha- pyrrolidone gamma- aminobutyrolactam; butyrolactam CAS 616-45-5