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1-Methyl-2-pyrrolidinone is a pyrrolidinone compound solvent that has been documented to act a cosolvent and a complexing agent at the same time.
M 2217 (OTTO) 1-Methyl 2-pyrrollidone, GR 99%+ Cas 872-50-4 - used in the petrochemical and plastics industries as a solvent, exploiting its nonvolatility and ability to dissolve diverse materials.