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Shijiazhuang Dowell Chemical Co.,Ltd.

Shijiazhuang Dowell Chemical Co.,Ltd. Supplies the best productions by high-tech, cherishes the beautiful nature by green technics.
The company is a  individual proprietorship company in technology exploiture , technology service, produce and trade of fine chemical, We devote ourselves to provide high-quality products and services on-time for our customer. We have independent right to import and export. Our products are mainly sold to Europe, USA, Australia, India, Korea, southeast of Asia etc. We have strong researching ability and perfect examination means. We have six laboratories, a pre-production test workshop and four united chemical factories underneath, one distribution company. The research direction and main operation includes five parts:
(1) Food additive and Medicine material: Main product is sucralose, Irinotecan, Neosperidin dihydrochalcone, Naringin dihydrochalcone. We mostly develop foresighted new medicine and pharmaceutical intermediate, especially in chiral compound we have accumulated a wealth of experience. Welcome our clients customize all kinds of chiral materials.
(2) Organic acid and its ramification: Our main products are organic acid and its acyl compound include chloride , amine and salt. Such as 2,2-Dimethyl Butyric Acid ;2,2-Dimethylbutyryl chloride;3,3-Dimethyl Butyric Acid ;3,3-Dimethyl butyryl chloride. All of these have come into being series and large-scale productions, exported to global markets including Occident, India, Japan and Korean. The character and output have been recognized by all clients.
(3) Heterocyclic compound: includes ramification from pyridine, ramification from nicotinic acid. We have two expert laboratories in developing ramification of pyridine, nicotinic acid and quinoline. Especially in ramification of pyridine nearly sixty kinds of products have been successfully developed. We are the sole maker of many products among them and holding the lead interiorly. Main products include: 2-hydroxyisonicotinic acid,2-Aminoisonicotinic acid,2-Mercaptonicotinic acid,2,6-dichloronicotinic acid,4-aminonicotinic acid,4-chloronicotinic acid,4-Hydroxynicotinic acid, 4-Nitronicotinic acid N-oxide, Methyl 4-hydroxynicotinate,6-methyl nicotinic acid,6-aminonicotinic acid,5,6-Dichloronicotinic acid etc.
(4) Customizes products: We have set up a special laboratory for subjects that are not of our company`s. Depend on the strong power of research and production, we can provide chemical products customized service from 1g to 100g, 1000g 10kg, 100kg and MT. We customizes products following clients`demand and sells to the market openly even clients have give up keeping secret agreement.

(5) Moreover, no only independence produce of product, our company still sell chemicals over a long period of time. We would like to become your agency in China.
The products that have been successfully researched and produced are nearly seventy kinds, among them:
Industrial products include:
sucralose,2,2-Dimethylbutyryl chloride, 2,2-Dimethyl Butyric Acid ,
N,N-Dimethylacetamide,2-amino-4-cyanopyridine,2-Aminoisonicotinic acid, 2-Hydroxynicotinic acid, 2-Mercaptopyridine-3-carboxylic acid ,6-chloronicotinic acid, 6-aminonicotinic acid,6-Hydroxynicotinic acid,5-Bromonicotinic acid, 3,3-Dimethyl Butyric Acid ,
5-aminonicotinic acid, 4-Hydroxynicotinic acid,4-aminonicotinic acid, 4-chloronicotinic acid, Sodium octyl sulfate,N,N-Dimethylpropionamide, N-Methylacetamide,
sodium 2-ethylhexyl sulfate,N-Methylpropionamide), (R)-(+)-2,2'-Bis(diphenylphosphino)-1,1'-binaphthyl, (S)-(+)-2,2'-Bis(diphenylphosphino)-1,1'-binaphthyl, racemic-2,2’-Bis(diphenylphosphino)-1,1’-binaphthyl, Diphenylphosphinic acid, Glyoxylic acid monohydrate, etc.
The products have past pre-production test include:
   2,6-Dichloronicotinic acid,6-Hydroxynicotinic acid,6-fluoronicotinic acid, 2-Bromonicotinic acid, 5-Chloronicotinic acid, S-Glycerol acetonide,
Irinotecan, Neosperidin dihydrochalcone, Naringin dihydrochalcone, etc.
We also have some small scale test products such as:
 5-fluoronicotinic acid, 5-Amino-2-Pyridinecarboxylic Acid, 5,6-Dichloronicotinic acid, 3-Aminoisonicotinic acid , etc.
Our products aim at abroad market and main export to the Europe, U.S., India, Japan , Korea and some other countries and areas. We have been the direct supplier for several well-known Europe and American companies. We work with buyers and sellers in every part of the world and have a solid reputation for integrity and confidentiality. Our company takes trustworthiness as origin, takes quality as life and takes customer-satisfaction as aim. We look forward to cooperate with widespread friends in chemical circles with rigorous attitude, help supply what the other needs and develop together.
Thanks for explore our website for details. If you need more information, please feel free to contact us.

 

2-乙基-2-甲基丁酸  (2009/10/13 17:21)
摘要: 2-乙基-2-甲基丁酸 2-Methyl-2-ethylbutyric acid 别名2-Ethyl-2-methylbutyric acid CAS:19889-37-3 分子式C7H14O2 分子量130.18 外观:无色透明液体 含量:≥99% 包装:40kg/衬塑铁桶   2-Methyl-2-ethylbutyric acid CAS:198...
S (-)-4-氯-3-羟基丁酸乙酯  (2009/10/13 17:21)
摘要: S (-)-4-氯-3-羟基丁酸乙酯 Ethyl S-4-chloro-3-hydroxybutyrate别名Ethyl (S)-(-)-4-chloro-3-hydroxybutyrate(ATS-4) CAS:86728-85-0 外观:无色透明液体 含量:≥98% 包装:40kg/衬塑铁桶     Ethyl S-4-chloro-3-hydroxybu...
摘要: R (-)-4-氰基-3-羟基丁酸乙酯 Ethyl (R)-(-)-4-cyano-3-hydroxybutyate CAS:141942-85-0 分子式C7H11NO3 分子量157.17 外观:无色透明液体 含量:≥98% 包装:40kg/衬塑铁桶   Ethyl (R)-(-)-4-cyano-3-hydroxybutyate (ATS-5) ...
吡唑环  (2009/10/13 17:19)
摘要: 吡唑环 5-氨基-3-氰基-1-(2,6-二氯-4-三氟甲基苯基)吡唑 【结 构 式】: 【别  名】:吡唑环,芳基吡唑腈 【美国化学文摘登录号】: [120068-79-3 ] 【分 子 式】:C11 H5 Cl2 F3 N4 【分 子 量】:321.09 【质量指标】:        外观:淡黄色或白色晶体        含量: ≥95% ...
氯虫苯甲酰胺  (2009/10/13 17:17)
摘要: 氯虫苯甲酰胺 中文通用名:氯虫苯甲酰胺 康宽 KK原药 Chlorantraniliprole CAS:500008-45-7 外观:白色结晶 含量:≥95% 定制 包装:10kg25kg/纸板桶 氯虫苯甲酰胺特点归纳:   1, 卓越高效广谱的鳞翅目、主要甲虫和粉虱杀虫剂,在低剂量下就有可靠和稳定的防效,立即停止取食,药效期更长,防雨水冲洗,在作物生长的...
乙虫腈  (2009/10/13 17:16)
摘要: 乙虫腈 英文通用名 ethiprole CAS:181587-01-9 分子式 C13H9Cl2F3N4OS 农药类别 杀虫剂 化学名称 1-(2,6-二氯-4-三氟甲基苯基)-3-氰基-4-乙基亚磺酰基-5-氨基吡唑 外观:类白色粉末 含量:≥95% 现货 包装:10kg25kg/纸板桶   【用途】乙虫腈(Ethiprole)是由罗纳普朗...
(S)-3-羟基丁酸甲酯  (2009/10/13 17:15)
摘要: (S)-3-羟基丁酸甲酯 CAS: 53562-86-0 外观:无色透明液体 含量:≥99% 现货 包装:40kg/衬塑铁桶            (S)-(+)-3-Hydroxybutyric acid methyl ester CAS: 53562-86-0 Appearance:  colorless liquid       Assa...
(R)-3-羟基丁酸甲酯  (2009/10/13 17:15)
摘要: (R)-3-羟基丁酸甲酯 (R)-(-)-3-Hydroxybutyric acid methyl ester CAS: 3976-69-0 外观:无色透明液体 含量:≥99% 现货 包装:40kg/衬塑铁桶          (R)-(-)-3-Hydroxybutyric acid methyl ester CAS: 3976-69-0 Appe...
柚皮苷二氢查尔酮  (2009/10/13 17:14)
摘要: 柚皮苷二氢查尔酮 柚皮甙二氢查尔酮 Naringin dihydrochalcone CAS: 18916-17-1 外观:类白色粉末 含量:98% 定制 Naringin dihydrochalcone 1-[4-[[2-O-(6-Deoxy-L-mannopyranosyl)-D-glucopyranosyl]oxy]-2,6-dihydroxyphe...
新橙皮苷二氢查尔酮   (2009/10/13 17:13)
摘要: 新橙皮苷二氢查尔酮 Neosperidin dihydrochalcone  CAS:20702-77-6 外观:类白色粉末 含量:98% 定制   Neosperidin dihydrochalcone 1-(4-((2-O-[6-Deoxy-alpha-L-mannopyranosyl]-beta-D-glucopyranosyl)oxy)-2,6...
二苯基磷酰氯  (2009/10/13 17:12)
摘要: 二苯基磷酰氯 二苯基次膦酰氯     Diphenylphosphinyl chloride  CAS:1499-21-4   外观:浅黄色液体 含量≥98% 现货      包装:200kg/桶           医药中间体   Diphenylphosphinyl chloride  Diphenylphosphinic ch...
二苯基磷酸   (2009/10/13 17:11)
摘要: 二苯基磷酸    Diphenylphosphinic acid CAS:1707-03-5   外观:白色结晶性粉末       含量≥99%   现货      包装:25kg/纸桶          医药中间体   Diphenylphosphinic acid CAS:1707-03-5      Appearance: ...
联萘二苯磷  (2009/10/13 17:10)
摘要: 联萘二苯磷    racemic-2,2’-Bis(diphenylphosphino)-1,1’-binaphthyl    CAS:78327-87-8  外观:白色结晶性粉末       规格:98%min 供货情况:现货   包装:5g,50g,250g/瓶           医药中间体   racemic-2,2’-Bis(dip...
S-联萘二苯磷  (2009/10/13 17:09)
摘要: S-联萘二苯磷 (S)-(+)-2,2'-Bis(diphenylphosphino)-1,1'-binaphthyl    CAS:76189-56-4  外观:白色结晶性粉末       含量≥98% 现货      包装:5g,50g,250g/瓶           医药中间体   (S)-(+)-2,2'-Bis(diphenylpho...
R-联萘二苯磷  (2009/10/13 17:09)
摘要: R-联萘二苯磷 R-(+)-1,1'-联萘-2,2'-双二苯膦 (R)-(+)-2,2'-Bis(diphenylphosphino)-1,1'-binaphthyl    CAS:76189-55-4  外观:白色结晶性粉末       含量≥98% 现货      包装:5g,50g,250g/瓶           医药中间体   (...
S-丙酮缩甘油  (2009/10/13 17:08)
摘要: S-丙酮缩甘油 (S)-(+)-甘油醇缩丙酮     S-Glycerol acetonide      CAS:22323-82-6        外观:无色液体   含量≥98%   包装:用户要求    产量:10T/年     工业助剂     S-Glycerol acetonide      (S)-(+)-2,2-...
丙酮缩甘油   (2009/10/13 17:07)
摘要: 丙酮缩甘油 异亚丙基甘油  Glycerol acetonide  CAS:100-79-8    外观:无色液体    含量≥98%   包装:200KG/桶 产量:30T/年    医药中间体 定制   Glycerol acetonide  Solketal (+/-)-2,2-Dimethyl-1,3-dioxol...
辛基硫酸钠   (2009/10/13 17:06)
摘要: 辛基硫酸钠 正辛基硫酸钠; 硫酸单辛基酯钠盐 Sodium octyl sulfate     CAS: 142-31-4      外观:淡黄色液体      含量≥40%   现货      包装:200KG/镀锌铁桶 产量:1000T/年   工业助剂   Sodium octyl sulfate Octyl sulfa...
异辛基硫酸钠   (2009/10/13 17:04)
摘要: 异辛基硫酸钠 2-乙基己基硫酸酯钠盐; 异辛醇硫酸钠 TC-EHS sodium 2-ethylhexyl sulfate    CAS:126-92-1    外观:琥珀色液体      含量≥40%   现货            包装:200KG/镀锌铁桶      年产:1000T        工业助剂
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