3-Methyl-2-butanone (methyl isopropyl ketone) is a colorless, transparent, low-viscosity and highly flammable aliphatic ketone liquid with a camphoraceous odor similar to acetone. It is highly volatile, can form an azeotrope with water, and is chemically stable. It is an important organic solvent and fine chemical intermediate.

1. Organic solvent: Used for the dissolution and dilution of coatings, inks, adhesives, resins, nitrocellulose and synthetic rubber.
2. Pharmaceutical intermediate: Used in the synthesis of certain drugs, vitamins and perfume precursors.
3. Pesticide intermediate: Used in the synthesis of agricultural chemicals such as insecticides and herbicides.
4. Metal cleaning and electronics industry: Used as a degreasing cleaning agent for precision instruments and electronic components.
5. Organic synthesis: Used as a solvent and raw material for alkylation and condensation reactions.