Qingdao Sigma Chemical Co., Ltd.
Country: China (Mainland)
Business Type: Trading Company
High Quality Spectinomycin dihydrochloride pentahydrateCAS NO.: 22189-32-8
High Quality SodiuM bis(trifluoroMethylsulfonyl)iMideCAS NO.: 91742-21-1
High Quality Diethyl 2-ethyl-2-phenylmalonateCAS NO.: 76-67-5