4-methyl-2-pentanol is an excellent medium boiling solvent. It is mainly used as the solvent of dyes, petroleum, rubber, resin, paraffin, nitrocellulose and ethyl cellulose, and as the inert solvent of nitrocellulose paint, which can increase the gloss and smoothness of the paint and improve the reddening performance; It is used as solvent in the manufacture of lubricating oil additive. Raw materials for organic synthesis, mineral flotation reagents, such as extraction of silicon and copper sulfate; It can also be used for brake fluid. It can also be used as foaming agent, dispersant, detergent, plasticizer, surfactant, lubricant, cosmetics and pharmaceutical for photographic industry.