25-HydroxyvitaMin D3-[D3] Calcifediol-D3

25-Hydroxyvitamin D₃ (6,19,19-d₃) can be used as an analytical standard.

25-Hydroxyvitamin D₃?(6,19,19-d₃) can be used as an analytical standard for the quantitative analysis of hydroxyvitamin D₃?concentration in human serum via LC-MS.

25-Hydroxyvitamin D₃ (calcifediol) is a prohormone produced via hydroxylation of vitamin D₃ (cholecalciferol) in the liver. It is a precursor for the synthesis of calcitriol {1,25-dihydroxyvitamin D₃ or [1,25(OH)₂D₃]}. It is also used as a biomarker to determine the status of vitamin D in the body.
25-Hydroxyvitamin D₃?(6,19,19-d₃) is a deuterated 25-hydroxyvitamin D₃ wherein C-6 and C-19 protons are replaced by deuterium.