dimethyl-2-pyrrolidone, 1,3-Dimethyl-pyrrolidin-2-on, 1,3-Dimethyl-2-pyrrolidone, 2-Pyrrolidinone,1,3-diMethyl, dimethylpyrrolidone; 1,3-Dimethylpyrrolid-2-one; 1,3-dimethyl-pyrrolidin-2-one; 1,3-Dimethyl-2-oxopyrrolidine; 1,3-dimethylpyrrolidone; 1,3-dimethyl-pyrrolidine-2-one;