Chemical Name : Calcifediol/calcidiol, 25-hydroxycholecalcifer,Didrogyl,Hidroferol
CAS : 19356-17-3
Synonyms: 25-HYDROXYCHOLECALCIFEROL (6,19,19-D3)
Storage:at -20℃ 2 years
the 25-hydroxy vitamin D (calcidiol) blood test is used to determine how much vitamin D is in the body. The blood concentration of calcidiol is considered the best indicator of vitamin D status. It is the most sensitive measure, though experts have called for improved standardization and reproducibility across different laboratories. According to MedlinePlus the normal range of calcidiol is 30.0 to 74.0 ng/mL. The normal range varies widely depending on several factors, including age and geographic location. A broad reference range of 20�C150 nmol/L has also been suggested, while other studies have defined levels below 80 nmol/L as indicative of vitamin D deficiency.
1.^ "Nomenclature of Vitamin D. Recomendations 1981. IUPAC-IUB Joint Commission on Biochemical Nomenclature (JCBN)" reproduced at the Queen Mary University of London website. Retrieved 21 March 2010. 2.^ Bender, David A.; Mayes, Peter A (2006). "Micronutrients: Vitamins & Minerals". in Victor W. Rodwell; Murray, Robert F.; Harper, Harold W.; Granner, Darryl K.; Mayes, Peter A.. Harper's Illustrated Biochemistry. New York: Lange/McGraw-Hill. pp. 492�C3. ISBN 0-07-146197-3. http://books.google.com.br/books?id=QrJCZ1v5T6AC. Retrieved December 10, 2008 through Google Book Search.