We provide access to a shared small molecule collection of over 140 000 drugs and drug-like compounds that are ready to use for screening. The chemical collections can be divided into two major classes: drugs & known bioactives and chemical diversity libraries. The drugs and known bioactives are ideal for biological profiling, drug repositioning and personalized medicine-type screens while the larger chemical diversity collections are best suited for molecular probe discovery screening. In addition, there is access to genomic libraries.