Chemical name: N, N-dimethylacetamide Dimethylacetamide is a strong polar aproton solvent, can dissolve a variety of compounds, completely miscible with water, ether, ketone, ester, etc., has the characteristics of high thermal stability, not easy to hydrolyze, low corrosion, low toxicity, etc., has good dissolution ability to a variety of resins, especially polyurethane resin, polyimide resin, can be used as heat-resistant synthetic fiber Dimensions, plastic films, coatings, pharmaceuticals , solvent for acrylonitrile spinning. Dimethylacetamide, as a low-toxicity, high-boiling point and high-polarity amorphous solvent and chemical intermediate, has a wide range of applications in the fields of synthetic materials, pharmaceuticals, pesticides, chemical fibers, petroleum processing and organic pigments. Dimethylacetamide is a colorless transparent liquid that can be mixed with organic solvents such as water, alcohol, ether, etc., and is a polar solvent. Dimethylacetamide has good thermal stability, is stable and does not decompose even at the boiling point, and can be refined by distillation; it is stable in aqueous solutions, but hydrolysis is promoted in the presence of acids and alkalis. Due to the introduction of ethyl in the molecular structure, the boiling point of dimethylacetamide is more than 10℃ higher than that of dimethylformamide (DMF) (the boiling point of dimethylformamide is 153℃), so it has better thermal stability and chemical stability than dimethylacetamide. In organic synthesis, dimethylacetamide is an excellent catalyst that accelerates cyclization, halogenation, cyanidation, alkylation and dehydrogenation reactions, and can improve the yield of major products.