Simplest and most important ketone (CH3COCH3). It is a colourless, flammable liquid, boiling at 133 °F (56.2 °C). Many fats, resins, and organic materials dissolve easily in it, so it is used to make artificial fibres, explosives, resins, paints, inks, cosmetics (including nail-polish remover), coatings, and adhesives. Acetone is used as a chemical intermediate in pharmaceuticals and many other compounds.
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One of its trade names is Topanol A. It is found in antioxidant mixtures AO-30, AO-31, AO-32, IONOL K72, IONOL K78, IONOL K98, and others.
It is a suspected respiratory toxicant and is suspected to be neurotoxic.