Chem4s Chemicals focuses on the researching development and manufacturing of Intermediates of APIs, special chemicals, Nutraceuticals. Chem4s uniquely have a multifunctional workshop, whose facility can meet from Kilo scale to Tons scale manufactu

Chem4s Chemicals focuses on the R&D of medical intermediates, fine chemical products and concerned marketing business in HangZhou. have successfully exploited many with our advanced technology rich experience R&D, such as chiral, indole & indazole, pyridine, piperidine pyrimidine ...