Qingdao Sigma Chemical Co., Ltd.
Country: China (Mainland)
Business Type: Trading Company
High Quality N-PHENYLCARBAZOLE HYDROCHLORIDECAS NO.: 1150-62-5
High Quality 4-Chloro-4'-hydroxybenzophenoneCAS NO.: 42019-78-3
High Quality 2-(2-thienyl)ethyl toluene-p-sulphonateCAS NO.: 40412-06-4