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Product name 1-methyl-2-pyrrolidinone
Synonyms NMP
GOST no data
CAS 872-50-4

N-methyl-Pyrrolidone (N-methyl-gamma-butyrolactam) is a keto-pyrrole. 1-Methyl-2-pyrrolidone is a clear liquid, soluble in water, alcohols, acetone, benzene, xylene. It is a typical N-alkylated lactam. Being treated with alkali solutions or concentrated HCl N-methyl-pyrrolidone converts into gamma-(N-methylamino)butyric acid.


In chemical industry 1-methyl-2-pyrrolidone is produced by the reaction of gamma-butyrolactone with CH3NH2 at 200-250°C and 4-20 MPa on Al2O3 or ceolite catalysts.


  • N-methyl-2-pyrrolidone is used as a solvent for paint stripping and resins;
  • cleaner for polymeric residues;
  • metal finishing;
  • printed circuit board manufacturing;
  • SBR latex production;
  • extraction of acetylene and butadiene;
  • dehydration of natural gas;
  • lube oil processing;
  • as intermediate for the synthesis of agrochemicals, pharmaceuticals, textile auxiliaries, plasticizers, stabilizers;
  • pigment dispersant;

  • Manufacturer(s) JSC Novocherkassk plant of synthetic products
    Chemical structure of 1-methyl-2-pyrrolidinone

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