Test the anti-cancer activity of the molecule X (MW. 400 g/mol) in HeLa cells. This molecule is provided as a solution of 100 mg/mL in pyrogen-free water. The concentrations to be tested are: 100, 50, 10, 5 and 1 M in triplicate into 12-well plates (1 mL of media per well). Prepare the solutions required to test the above-mentioned concentrations in media.