Vitamin D
Vitamin D is an essential fat-soluble vitamin. It encompasses vitamins D2 (ergocalciferol) and D3 (cholecalciferol), as well as the hydroxylated forms of vitamin D (e.g., 25-hydroxyvitamin D, 1,25-dihydroxyvitamin). These vitamin Ds are obtained from natural/dietary sources, supplements, or synthetic routes. Their collective importance to the biological function of endocrine/autocrine systems helps mitigate the susceptibility to metabolic/endocrine abnormalities (e.g., multiple sclerosis, rheumatoid arthritis). To aid research in this area, CIL offers a variety of vitamin D standards in their stable isotope-labeled and unlabeled form. These are available as neat compounds and/or in solution at specified concentrations (e.g., 50 µg/mL in ethanol) for research use applications. For additional information on these vitamin D standards and other reagent offerings, please refer to our Stable Isotope Standards for Mass Spectrometry catalog.
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