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lactone |
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lactone /lac·tone/ (lak´tōn) a cyclic organic compound in which the chain is closed by ester formation between a carboxyl and a hydroxyl group in the same molecule.
lactone (lakˑ·tōn), n a compound with a high molecular mass that comprises an ester linked to a ring structure of carbon atoms. Significant members of this group are coumarin and its derivatives. It is found in expressed oils and some absolutes. It has been used as an anticoagulant, sedative, and antipyretic. Harmful effects include skin allergies and potential toxicity to the nervous system. lactone, n an organic anhydride formed from a hyroxyacid by the loss of water between an 2OH and a 2COOH group. lactone 1. an aromatic liquid from lactic acid. 2. a cyclic organic compound in which the chain is closed by ester formation between a carboxyl and a hydroxyl group in the same molecule. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Broadly FDA-approved with low migration, it synergizes with sulfur and phenolic antioxidants and lactones and is not deactivated by fillers such as talc. Bioassay-directed chemical analysis of ambient samples and environmental chamber reactions of PAHs led to the identification of mutagenic nitrophenanthrene lactones (Helmig et al. These tin-zeolite catalysts produced the desired esters and lactones from the Baeyer-Villiger oxidation when the researchers substituted hydrogen peroxide for the typical acid ingredient. |
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