NEP full name is N-Etl Pyrrolidone. It can be used as a highly selective solvent, catalyst and cationic surfactant, and also as a basic raw material for the production of pharmaceutical intermediates. It can be used to refine oil products and produce gunpowder, medicine, dye, pesticide, daily chemical, coating and heat-resistant resin.CAS is 2687-91-4; Package is 200kg/drum