1-Methyl-2-pyrrolidinone 1-Methyl-2-pyrrolidone 1-Methyl-5-pyrrolidinone 1-Methylazacyclopentan-2-one 1-Methylpyrrolidinone 2-Pyrrolidinone, 1-methyl- 872-50-4 M-Pyrol Methylpyrrolidone N-Methyl-.alpha.-pyrrolidinone N-Methyl-.alpha.-pyrrolidone N-Methyl-.gamma.-butyrolactam N-Methyl-2-pyrrolidinone N-Methyl-2-pyrrolidone N-Methylpyrrolidinone N-Methylpyrrolidone NMP NSC4594 Norleucine, 5-oxo-, DL- WLN: T5NVTJ A