Sigma-Aldrich
Telephone021-61415566 800-8193336
Websitehttps://www.sigmaaldrich.cn
Shanghai YuanYe Biotechnology Co., Ltd.
Telephone021-61312847; 18021002903
Websitehttp://www.shyuanye.com
Bejing Famous Pharmaceutical Technology Co., Ltd.
Telephone 15811073878
Websitehttp://www.peking-pharmacy.com
Hangzhou Taorui Biotechnology Co., Ltd
Telephone4000-360-990 15268198094
Websitehttp://www.torreybio.com/
Shanghai Aladdin Biochemical Technology Co.,Ltd.
Telephone400-6206333 13167063860
Websitehttp://www.aladdin-e.com/
Merck KGaA
Telephone21-20338288
Websitehttp://www.sigmaaldrich.cn
Aikon International Limited
Telephone025-58851090 13408877820
Websitehttps://www.aikonchem.com/
Aromsyn Co., Ltd.
Telephone+86-0571-85585865 +8613336024896
Websitehttps://www.aromsyn.com/