25 oh vitamin d3 Creative Diagnostics

The assay of vitamin D levels is of increasing interest and is commonly aimed at the 25-hydroxy variants. Such assays can be required to detect both 25-OH D2 and D3 and the availability of antibodies that can recognise both variants is of use in immunoassay design.
http://www.creative-diagnostics.com/Anti-25-OH-Vitam
in-D3-MAb-233791-144.htm