previous work has shown that 25-hydroxyvitamin d3 ( 25-oh-d3 ) and 1 alpha , 25-dihydroxyvitamin d3 ( 1,25- ( oh ) 2d3 ) may be metabolized in the mammalian kidney through a side chain oxidation pathway resulting in c23-c24 cleavage , yielding 24,25,26,27-tetranor-23-oh-d3 .
C0006657
25-hydroxyvitamin d3
C2713074
25-oh-d3