Qingdao Sigma Chemical Co., Ltd.
Country: China (Mainland)
Business Type: Trading Company
High Quality Maytansine, O3-de2-(acetylmethylamino)-1-oxopropyl-CAS NO.: 57103-68-1
High Quality 1,2,3,4-Butanetetracarboxylic acidCAS NO.: 1703-58-8
High Quality 2-Methyl-3-(3,4-methylenedioxyphenyl)propanalCAS NO.: 1205-17-0