The volume in each vial can be calculated from information provided in the lot specific certificate of analysis found here:
https://www.sigmaaldrich.com/product/sigma/d4943#product-documentation
The specification is that each vial will be provided at a concentration of ≥10ug protein/mL, and that the activity will be ≥ 10units per mg protein. The calculations to make a solution of 0.005U/mL will be dependent on the specific activity of the lot.


