N-vinyl-2-pyrrolidone (NVP) is commonly used as a reactive diluent for radiation curing in UV-coating, UV-inks, and UV adhesives. It is used as a monomer to produce water soluble polyvinylpyrrolidone (PVP) with uses in pharmaceuticals, oil field, cosmetics, food additives & adhesives. It is used in the manufacture of copolymers with, for example, acrylic acid, acrylates, vinyl acetate and acrylonitrile and in the synthesis of phenolic resins.