Shanghai Hanhong Chemical Co. Ltd. , established by a group of professors and doctors, is a high-tech. enterprise specialized in the research, development and technology service of unnatural amino acids and their derivatives,nucleosides,nucleotides and their derivatives ,and other pharmaceutical intermediates.It has owned a lot of senior researchers, including doctors,post-doctors and professors of organic chemistry for R&D and process control. The company has built several united labs in the Un...