Professor Yan Zhang from School of Basic Medical Sciences, Zhejiang University visited the Chinese National Compound Library (CNCL) in the morning of June 15, 2019. This is his second 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 and Fudan University School of Pharmacy reported their project progresses in class B G protein-coupled receptor cryo-EM structure determination. Professor Zhang reacted with them by answering their questions and providing detailed technical guidance.