Source:http://linkedlifedata.com/resource/umls/id/C0022634
CSP: functional group of an organic compound in which a carbon atom is double-bonded to an oxygen; neither of the other substituents attached to the carbon can be a hydrogen.,NCI: A type of chemical substance used in perfumes, paints, solvents, and found in essential oils (scented liquid taken from plants). Ketones are also made by the body when there is not enough insulin.,NCI: Organic compounds with a carbonyl group (C=O) bonded to two other carbon atoms as the skeleton structure. Acetone is the simplest ketone compound.