A compound library is a collection of chemical compounds that are stored and organized for research and development purposes. These libraries are essential in fields like drug discovery, where scientists screen various compounds to identify potential new medications. Each compound in the library can be tested for its biological activity, helping researchers find effective treatments for diseases. Typically, compound libraries are created through methods such as combinatorial chemistry or high-throughput screening, which allow for the rapid synthesis and evaluation of numerous compounds. They can be either small molecule libraries or biologics, depending on the type of compounds included. Access to a diverse compound library accelerates the innovation process in pharmaceutical research.