Q1: Calculate how much DMSO you will need to add to the tubes to bring the concentration to 100 nM.
PC-009 (test compound): molecular weight of 392.41 g/mol and there is a total amount of 6.7 mg in the tube.
PC-012 (test compound): molecular weight of 496.35 g/mol and there is a total amount of 7 mg in the tube.
PC-013 (test compound): molecular weight of 445.51 g/mol and there is a total amount of 7.9 mg in the tube.
Q2: Once you bring the concentration to 100 mM, you will then set up a plate where you test at a final concentration of 100 uM, 50 uM, 10 uM, and 5 uM. So you will also need to figure out how much of the 100 mM stock you will need to add to the wells in your plate for each of those concentrations.