Welcome to Shanghai Yeexin Biochem&tech co,.Ltd .A diversified biochemical company. Shanghai Yeexin Biochem&tech co,.Ltd (YEEXIN BIOCHEM)is dedicated to the research, development, manufacture and marketing of diverse biochemicals and fine chemicals.It has owned a lot of senior researchers, including doctors, professors and experts of organic chemistry for R&D and process control..YEEXIN BIOCHEM can manufacture custom-made products from grams to tons. Our approach is based upon the strength in...