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lactone

   Also found in: Medical, Encyclopedia, Wikipedia 0.02 sec.
lac·tone  (lktn)
n.
An anhydride formed by the removal of a water molecule from the hydroxyl and carboxyl radicals of hydroxy acids.


lac·tonic (-tnk) adj.

lactone [ˈlæktəʊn]
n
(Chemistry / Elements & Compounds) any of a class of organic compounds formed from hydroxy acids and containing the group -C(CO)OC-, where the carbon atoms are part of a ring
lactonic  [lækˈtɒnɪk] adj

lactone  (lktn)
Any of various organic esters derived from organic acids by removal of water. Lactones are formed when the carboxyl (COOH) group of the acid reacts with a hydroxyl (OH) group in the same acid, releasing water and causing the carbon atom to join to the hydroxyl's remaining oxygen atom, forming a ring. Vitamin C, the antibiotic erythromycin, and many commercially important substances are lactones.


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? Mentioned in ? References in periodicals archive
 
These low-color additive blends are non-lactone replacements for Irganox XP blends of phenolic and lactone stabilizers, which Ciba Specialty Chemicals will phase out of production this year.
These complexes are chemisorbed oxygen groups in the form of carboxy, quinone, lactone and phenolic groups (ref.
The term macrolide was originally applied to specific compounds produced by various Streptomyces species containing, as part of their structure, a macrocyclic lactone to which various deoxy sugars are attached.
 
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