Ketone
A ketone is an organic compound containing a carbonyl group bonded to two carbon atoms. Ketones are widely used in pharmaceuticals, solvents, and chemical synthesis due to their reactivity and stability.
What is a ketone?
A ketone is a class of organic compounds characterised by a carbonyl functional group (C=O) attached to two carbon atoms. The general formula is R–CO–R', where R and R' are alkyl or aryl groups. Common examples include acetone (propanone), which is used as a solvent and in the production of plastics, and cyclohexanone, used in nylon synthesis.
How are ketones used in industry and research?
In biotechnology and pharmaceutical manufacturing, ketones serve as intermediates in the synthesis of active pharmaceutical ingredients (APIs). Their ability to undergo nucleophilic addition reactions makes them valuable in organic synthesis. Acetone, for example, is used in lab-scale purification and as a cleaning agent due to its high volatility and low toxicity. In analytical chemistry, ketones are detected using techniques such as GC-MS and HPLC, and their purity is verified via NMR and IR spectroscopy.
What safety and regulatory considerations apply?
Ketones are generally flammable and may pose health risks if inhaled or absorbed through the skin. Safety data sheets (SDS) and regulatory frameworks such as REACH, GHS, and TSCA govern their handling and disposal. High-purity ketones, such as those meeting ACS or USP standards, are required for pharmaceutical and diagnostic applications.
Related concepts
Ketones are closely related to aldehydes, which also contain a carbonyl group but are bonded to at least one hydrogen. They are also key intermediates in metabolic pathways, such as ketogenesis, and are used in the synthesis of polymers, resins, and fragrances.