Acetone | CH3-CO-CH3 or C3H6O | CID 180 - structure , chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. Learn about acetone , a clear, flammable liquid and the simplest ketone, with a chemical formula of C₃H₆O. Find out its structure , preparation, physical and chemical properties, and applications in everyday life and industry. Acetone is an organic chemical compound from the group of ketones (alkanones). What is Acetone ? Acetone is a highly flammable organic compound. This organic solvent has a chemical formula C 3 H 6 O. It is also known as propanone. It is found in the exhaust from vehicles, plants, trees and forest fires. It is also found in the human body usually present in urine and blood. It is colourless and volatile. It is miscible in water, ether, ethanol and has a pungent, floral or irritating smell. It is widely used as an antiseptic and solvent. Alchemists were the first to ...