Qingdao Sigma Chemical Co., Ltd.
Country: China (Mainland)
Business Type: Trading Company
High Quality 1-Naphthalenesulfonicacid, 4-amino-, sodium salt (1:1)CAS NO.: 130-13-2
High Quality Phosphoric acid, zincsalt (2:1)CAS NO.: 13598-37-3
High quality Nootropics powder Sunifiram , Dm-235CAS NO.: 314728-85-3
High quality 4-Phenyl-2-pyrrolidone-1-acetamide/nootropics powder Phenylpiracetam / CarphedonCAS NO.: 77472-70-9