Not Less Than - 95%
1-Methyl-5-pyrrolidinone; 1-Methylazacyclopentan-2-one; 1-Methylpyrrolidone; N-Methyl-2-ketopyrrolidine ; N-Methylbutyrolactam; 1-Methyl-2-pyrrolidinone; N-Methyl-2-pyrrolidone; 1-Methyl-2-pyrrolidone; Pyrrolidin, 1-methyl-2-one-; 1-Methylpyrrolidin-2-one; N-Methyl-γ-butyrolactam; N-Methyl tetrahydropyrrolone; 1-Methyl-2-oxopyrrolidine; N-Methyl-1-oxotetramethyleneamine; 2-Methyl-2-azacyclopentanone