Professor Benjamin Cravatt from the Scripps Research Institute, La Jolla, California visited the Chinese National Compound Library (CNCL) in the afternoon of June 27, 2012. He was accompanied by Professor Guangcai Yang. Dr. Ming-Wei Wang warmly welcomed this American colleague and briefly introduced the history and development plan of the library. Professor Cravatt was deeply impressed by this world-class facility and its cultural environment, and wish to promote bilateral academic collaboration and personnel exchange.