N-methyl-pyrrolidinone (NMP,872-50-4,1-Methyl-2-pyrrolidinone) abbreviated as NMP, molecular formula :C5H9NO, English: 1-Methyl-2-Pyrrolidinone,NMP appearance is colorless to light yellow transparent liquid, slightly ammonia odor, NMP is miscible with water in any proportion, soluble in ether, acetone and ester, halogenated hydrocarbon, aromatic and other organic solvents, almost completely mixed with all solvents, NMP boiling point 204 ° C, flash point 91 ° C, strong moisture absorption, chemical stability, no corrosion to carbon steel, aluminum, slightly corrosive to copper. NMP has the advantages of low viscosity, good chemical and thermal stability, high polarity, low volatility, and infinite miscibility with water and many organic solvents. NMP is a microdrug with an allowable limit concentration of 100PPM in the air. Medicine & Agriculture First, NMP is widely used as a reaction intermediate in the field of organic synthesis. Due to its high reactivity and good stability, it can participate in a variety of organic synthesis reactions, such…