Qingdao Sigma Chemical Co., Ltd.
Country: China (Mainland)
Business Type: Trading Company
High Quality (S)-1-Amino-1,2,3,4-tetrahydronaphthaleneCAS NO.: 23357-52-0
High Quality 4,5,6,7-Tetrahydrothieno[3,2,c] pyridine hydrochlorideCAS NO.: 28783-41-7