3-epi-25-Hydroxy Vitamin D3-d6

3-epi-25-Hydroxy Vitamin D3-d6is the deuterium labeled3-epi-25-Hydroxy Vitamin D3(HY-142140)[1]. 3-epi-25-Hydroxy Vitamin D3 is the vitamin D metabolite, while vitamin D metabolism highly dependent on macrophage polarization. The C3-epimerase pathway for vitamin D is active in macrophages[2].