(1R)-(-)-Nopol

Shijiazhuang Dowell Chemical Co.,Ltd., A qualified supplier of Bayer and several global medial enterprises. PROFILE: Shijiazhuang Dowell Chemical Co.,Ltd founded in 2006, we are a fine chemical enterprise of technological development, technological service and industrial production. We consistently devote to new product development and production. We insist to build core competitiveness with scientific and technical innovation. We have cooperative factories in Huanghua, Tianjin, Shijiazhuang, and Gansu.A complete product system has been built: lab for basic research, semi-works for miniature customization, and factory for industrial manufacture. Our research direction and main product are medical and pesticide intermediate, developing prospective medical intermediate. A series of products are formed mainly including medicine and pesticide intermediates, Especially for 2,2-Dimethyl Butyric Acid(DMBA) and 2,2-Dimethylbutyryl chloride(DMBC), our quality is stable and dependable. We have established product line of 3,3-Dimethyl Butyric Acid and 3,3-Dimethylbutyryl chloride, annual capacity reaches 200Mt. Besides some domestic distribution, our products are mainly sold to Europe, USA, India, Korea, etc. THE RESEARCH DIRECTION AND MAIN OPERATION INCLUDES THREE PARTS: (1)Medicine and pesticide intermediates: Main productions including 2,2-Dimethyl Butyric Acid;2,2-Dimethylbutyryl chloride;Dimethylbutyryl-S-Methyl Mercaptopropionate;3,3-Dimethylbutyric acid;3,3-Dimethylbutyryl chloride;Glyoxylic acid monohydrate;Methyl (R)-(-)-3-hydroxybutyrate;4-Chlorophenylhydrazine hydrochloride;1-(4-chlorophenyl)-3-hydroxy-1-h-pyrazole;1-(4-Chlorophenyl)-3-[(2-nitrophenyl)methoxy]-1H-pyrazole etc. (2)Pyridine derivatives: Nearly sixty kinds of products have been successfully developed, Main products include: 2-Aminoisonicotinic acid and its methyl ester,2-Mercaptonicotinic acid, 2-Aminonicotinic acid, 5-Hydroxynicotinic acid and its methyl ester, 4-Chloronicotinic acid,4