Professor Yan Zhang from School of Basic Medical Sciences, Zhejiang University visited the Chinese National Compound Library (CNCL) in the afternoon of November 4, 2019. This is his fourth visit this year. Drs. Ming-Wei Wang (Director, the National Center for Drug Screening/CNCL and Dean, School of Pharmacy, Fudan University) and Dehua Yang (Professor, Shanghai Institute of Materia Medica, Chinese Academy of Sciences) warmly received him. They discussed the current status of several collaborative research projects and agreed upon the follow-up plans.