Professor Chuanjie Guo, former vice president of Chinese Academy of Sciences (CAS), visited the Chinese National Compound Library (CNCL) in the afternoon of October 14, 2013. He was accompanied by Mr. Jun Li, Deputy Director of Shanghai Institute of Materia Medica, Chinese Academy of Sciences. Professor Guo highly appreciated the development status, operating model and the state-of-the-art facility at CNCL.