The Reaxys database is an online chemical information retrieval database provided by the Elsevier Publishing Group. It covers all aspects of organic chemistry, inorganic chemistry, and metal organic chemistry. Over 16,000 journals related to chemistry and pharmacy were included, and the reactions, physicochemical properties, and experimental processes involving substances in the full text of the periodicals were excerpted, allowing users to obtain the most needed information at the same time as inquiring. With Reaxys, you can quickly get synthesis routes, find physicochemical properties, obtain material analysis data (HPLC/NMR/UV, etc.) and obtain detailed information on patents.