Professor Yan Zhang from School of Basic Medical Sciences, Zhejiang University visited the Chinese National Compound Library (CNCL) in the morning of September 16, 2019. This is his third 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. Several postgraduate students from University of Chinese Academy of Sciences, ShanghaiTech University, Fudan University School of Pharmacy and Korea Research Institute of Bioscience & Biotechnology reported their project progresses in class B G protein-coupled receptor and another bioactive macromolecule cryo-EM structure determination. Professor Zhang reacted by answering their questions and providing detailed technical guidance.