Acetone (also known as propanone) is a clear, volatile, highly flammable liquid with a sharp, distinctive odor. It is the simplest and most commonly used ketone, with the molecular formula C₃H₆O. Acetone is miscible with water and most organic solvents, making it an extremely versatile solvent across numerous industries.

Produced primarily via the cumene hydroperoxide process, acetone is known for its fast evaporation rate, low boiling point, and excellent solvency power, especially for resins, polymers, and adhesives.