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.