Use of Methyl Ethyl Ketone (CAS 78-93-3)
Methyl ethyl ketone (MEK), also known as butanone or 2-butanone, is a widely used industrial solvent with the molecular formula C₄H₈O and CAS number 78-93-3.
MEK is especially favored in large-scale industrial applications where efficient dissolution, rapid drying, and stable performance are critical.

Main Industrial Uses of Methyl Ethyl Ketone
Industrial Applications
Methyl ethyl ketone plays an important role in multiple fields. It is widely used as a solvent for cellulose acetate, acrylic resins, alkyd resins, coatings, and printing inks. In addition, it serves as a key component in dye binders, lubricating oil dewaxing agents, and vulcanization accelerators.
In scientific research, methyl ethyl ketone is also used as a reagent for the determination of cadmium, copper, and mercury, as well as a standard substance in chromatographic analysis.
Food and Electronics Industry Applications
Methyl ethyl ketone is even listed as an approved food flavoring, commonly used in the formulation of cheese, coffee, and banana-type flavorings, and it can also be applied as an extraction solvent.
In the electronics industry, methyl ethyl ketone is widely used as a developer after photolithography in integrated circuit manufacturing, highlighting its significant industrial value.
Agricultural Applications
Methyl ethyl ketone is a key raw material for the acaricide pyridaben, reflecting its important application potential in the agricultural sector.
Safety and Handling Considerations
Methyl ethyl ketone is highly flammable, and its vapors can form explosive mixtures with air. During storage and use:
- Keep away from heat, sparks, and open flames
- Use proper ventilation
- Follow SDS guidelines and local chemical regulations





