Shanghai Chemchallenger Biotech Co., Ltd is a comprehensive company in chemical, biological and pharmaceutical field with professional teams in R&D and marketing. We are specialized in contract R&D and custom synthesis including developing innovative processes for the synthesis of pharmaceutical intermediates and derivatives. The production ranges from milligram to kilogram scale can be done in our R&D centre. We also have the close cooperating relationship with several institutes, universities and stable good suppliers, which give us the advantage to provide our customers with wide range of organic chemicals and good services. The total QC equipments give strong support for our reaserch in labs. We have strict quality control system and quality guarantee for all products. " Sincere, professional, creative " is the concept we always persist. Welcome to recive inquiry from you. We will do our best to provide the best products and satisfactory service for you. Hope to build up long-term friendly cooperating relationship with you!