Enzo Life Sciences introduces the SCREEN-WELL Cancer Library, a collection of 275 ready-to-use compounds for use in cancer inhibitor screening and assay development, comprised of compounds that are dissolved at 10 mM in DMSO and aliquoted at 100 µL per well in deep 96-well plates. Each contains small molecules affecting mTOR, aurora kinases, tyrosine kinases, PI3K, HDAC, and other differing compound classes. The structural and mechanistic differences between compounds, as well as the inclusion of nontoxic controls, make the library a vital tool in cancer screening.