Qingdao Sigma Chemical Co., Ltd.
Country: China (Mainland)
Business Type: Trading Company
High Quality N,N,N',N'-Tetramethyl-p-phenylenediamine dihydrochlorideCAS NO.: 637-01-4
High Quality 1-(4-Fluorophenyl)piperazine dihydrochlorideCAS NO.: 64090-19-3