Impurity B of Calcitriol is one of the impurities of Calcitriol(1,25-Dihydroxyvitamin D3; Rocaltrol ) which is is the metabolically/hormonally active form of vitamin D and a vitamin D receptor (VDR) agonist. Calcitriol is converted to metabolites more potent and rapidly acting than other forms of Vitamin D. Calcitriol has played an important role in mineral and skeletal homeostasis by regulating the differentiation, growth and the function of the cell immune system.

纯度：≥98%

CAS：66791-71-7