Acetone is an organic chemical compound from the group of ketones (alkanones). Acetone is an organic compound with the formula (CH3)2CO. It is the simplest and smallest ketone and has a pungent, fruity odor. Learn more about its chemical structure, properties, uses, hazards and synthesis. Learn about acetone, a simple and common ketone with the formula (CH3)2CO, also known as propanone or dimethyl ketone. Find out its IUPAC name, molecular weight, properties, uses, and reactions in chemistry. Acetone is also known by its chemical name propanone, has a simple molecular structure consisting of three carbon atoms, six hydrogen atoms, and one oxygen atom, represented by the chemical formula C₃H₆O. At the center of the acetone molecule, there is a carbonyl group (C=O), where a carbon atom is double-bonded to an oxygen atom. This carbonyl group is flanked on either side by a methyl group (CH₃), making the overall structure symmetrical. The presence of the carbonyl group makes ...