Qingdao Sigma Chemical Co., Ltd.
Country: China (Mainland)
Business Type: Trading Company
High Quality 9,9-Bis(4-broMophenyl)fluoreneCAS NO.: 128406-10-0
High Quality 4-AMINO-2-CHLOROPYRIMIDINE-5-CARBONITRILECAS NO.: 94741-69-2
High Quality 2-Chloro-4-methyl-5-nitropyridineCAS NO.: 23056-33-9