9,9-Dimethyl-4,5-bis(diphenylphosphino)xanthene

Hangzhou Verychem Science And Technology Co.Ltd was set up in year 2004the company invested several R&D centers and five factories located respectively in Jiangxi and Hubei,Hunan,Henan,Anhui provinces，production and quality management is according to ISO & GMP guideline. In year 2015, it bought some share of a new drug R&D and registration company in China. The company mainly concentrates on R&D, manufacture and sales of pharmaceutical raw materials, material chemicals, special Gas， food &cosmetic ingredients .