https://wiki.tiffa.net/w/index.php?action=history&feed=atom&title=Translations%3ACholecalciferol%2F28%2FenTranslations:Cholecalciferol/28/en - Revision history2026-09-11T14:24:15ZRevision history for this page on the wikiMediaWiki 1.43.0https://wiki.tiffa.net/w/index.php?title=Translations:Cholecalciferol/28/en&diff=137820&oldid=prevFuzzyBot: Importing a new version from external source2024-04-11T12:28:33Z<p>Importing a new version from external source</p>
<p><b>New page</b></p><div>==Industrial production==<br />
Cholecalciferol is produced industrially for use in [[multivitamin|vitamin supplement]]s and [[food fortification|to fortify foods]]. As a [[pharmaceutical drug]] it is called cholecalciferol ([[United States Adopted Name|USAN]]) or colecalciferol ([[International Nonproprietary Name|INN]], [[British Approved Name|BAN]]). It is produced by the [[ultraviolet]] irradiation of [[7-dehydrocholesterol]] extracted from [[lanolin]] found in sheep's [[wool]]. Cholesterol is extracted from wool grease and wool wax alcohols obtained from the cleaning of wool after shearing. The cholesterol undergoes a four-step process to make 7-dehydrocholesterol, the same compound that is produced in the skin of animals. The 7-dehydrocholesterol is then irradiated with ultraviolet light. Some unwanted [[isomers]] are formed during irradiation: these are removed by various techniques, leaving a resin which melts at about room temperature and usually has a potency of 25,000,000 to 30,000,000 International Units per gram.</div>FuzzyBot