25,26-Dihydroxyvitamin D3-d3 (25,26-Dihydroxycholecalciferol-d3) is the deuterium labeled 25,26-Dihydroxyvitamin D3. 25,26-Dihydroxyvitamin D3 (25,26-dihydroxycholecalciferol) is a metabolite of vitamin D3 with intestinal calcium transport activity.

Stable heavy isotopes of hydrogen, carbon, and other elements have been incorporated into drug molecules, largely as tracers for quantitation during the drug development process. Deuteration has gained attention because of its potential to affect the pharmacokinetic and metabolic profiles of drugs^[1].

Shanghai Jinpan Biotech Co Ltd has not independently confirmed the accuracy of these methods. They are for reference only.

419.65

C₂₇H₄₁D₃O₃

25,26-二羟基维他命 D3 d3

Room temperature in continental US; may vary elsewhere.

Please store the product under the recommended conditions in the Certificate of Analysis.

• [1]. Russak EM, et al. Impact of Deuterium Substitution on the Pharmacokinetics of Pharmaceuticals. Ann Pharmacother. 2019;53(2):211-216.

  [2]. DeLuca HF, et al. 25,26-dihydroxycholecalciferol, a metabolite of vitamin D3 with intestinal calcium transport activity. Biochemistry. 1970 Nov 24;9(24):4776-80.

  [3]. Miravet L, et al. The biological activity of synthetic 25,26-dihydroxycholecalciferol and 24,25-dihydroxycholecalciferol in vitamin D-deficient rats. Calcif Tissue Res. 1976 Dec 2;21(3):145-52.

  [4]. Fraher LJ, et al. Determination of circulating 25,26-dihydroxycholecalciferol in man by radioimmunoassay. Clin Sci (Lond). 1980 Oct;59(4):257-63.