2-Pentanone（Cat No.:R021587）, also known as methyl propyl ketone (MPK), is a colorless, flammable liquid with the molecular formula C<sub>5</sub>H<sub>10</sub>O. It features a ketone functional group located at the second carbon of a five-carbon linear chain. With a mild, sweet odor, it is used as a solvent in coatings, adhesives, and cleaning formulations, especially where moderate evaporation rates are desired. 2-Pentanone is also employed in chemical synthesis and occasionally as a flavoring agent. Its solvent properties are similar to methyl ethyl ketone (MEK) but with slightly lower volatility and reduced reactivity.