A leading manufacturer of research chemicals, metals and materials including high purity inorganics, organics and organometallics, precious compounds and catalysts, rare earth compounds and metals, labware and more.
URL: http://www.alfa.com/en/product/a11000 in English [Translate]
Nanjing T.N.C. Bioengineering Co., Ltd is a plant dealing in fine chemical and bio-synthesis. Mainly produce L-tryptophan, carbadox, L-theanine, indole and its derivates.
URL: http://www.ntnc.cn in English [Translate]
