Guangzhou Isun Pharmaceutical Co., Ltd is a chemistry-oriented R&D outsourcing company focused on broad outsourcing services including custom synthesis, process development, pilot production and manufacturing of APIs and intermediates. And we also provides a wide range of research chemicals including novel reference compounds and Natural compounds for laboratory and scientific use. The volume of our products ranges from milligrams to kilograms scale. Our customers come from pharmaceutical and biotech companies, universities, research institutions.