Led by Professor Douwe D. Breimer (Former Director of the Leiden Academic Center for Drug Research), 40 undergraduate students majoring biopharmaceutical sciences visited the Chinese National Compound Library (CNCL) in the afternoon of April 10, 2019. They toured the state-of-the-art facility of CNCL with tremendous enthusiasm, interacted with the hosting technicians and took home with a lot of fond memories.