Shanghai Gsyn Chemical Co.,Ltd. is a innovative company engaged in organic intermediates, pharmaceutical ingredients, fine chemicals, Fluorides and custom synthesis. Gsyn have lab in Shanghai and pilot plant in Jiangsu and Shandong Province. Gsyn have rich experience in providing custom synthesis and contract manufacturing from grams to metric tons according to clients' requirements with all modern analysis equipment (HPLC, GC, MS, IR, UV, H'NMR ) to trace the p...