CAS 593-51-1 Methylamine hydrochloride with high purity best price safe delivery Chinese factory supply and no customs issues CAS NO.593-51-1

    Yiwu Demei e-commerce firm is a dynamic and innovative enterprise, specializing in the research, manufacture and distribution of high-quality pharmaceutical ingredients and organic compounds. We are firmly committed to promoting the development of the global pharmaceutical industry and promoting the export of China's pharmaceutical products to the world. Our extensive product portfolio has been recognized in key markets. Adhering to the principle of honesty and transparency, we give priority to establishing a trustworthy relationship with customers to ensure the success and long-term cooperative partnership between the two sides.The company is located in Shijiazhuang, Hebei Province, the hub of Beijing-Tianjin-Hebei, and has more than ten years of industry experience. The affiliated factory covers an area of 7000 square meters. In addition, it also has its own excellent talent pool. Our high-tech R&D team has more than 200 R&D personnel in the workshop. In recent years, our products have been exported to Britain,Germany, Australia, the Netherlands, Poland, Russia, Kazakhstan, the Philippines, Malaysia, Singapore and many other regions. We do business with customers on the principle of honesty and trustworthiness. We are committed to satisfying our customers and gaining the greatest recognition from them within the scope permitted by law. We pay attention to every detail and strive to provide customers with the best services in procurement, research and development, quality control and safe transportation, so as to establish long-term cooperative relations with customers.

FAQ
1.What is your minimum order quantity?
Different products have different minimum order quantities.Usually at least one kilogram.For a few ultra-high value products,the minimum order quantity is 1g.
2.What are your payment methods?
Our payment methods include ,Money Gram,Alibaba,Alipay and T/T.
3.How long is your shipping time?
Normally it is shipped the same day or the next day.Due to different countries,the shipping time is also different.Usually ranging from seven to fifteen days.Please consult customer service for details.
4.How can I get the samples?
For some products,we can provide you with free off the shelf samples.You just need to pay for delivery.

5.What services do you provide?
Since the products are mass- produced,customized products,customized purity,and customized packaging are not supported.

   Methylamine hydrochloride, also known as monomethylamine hydrochloride, is a white crystalline powder in appearance. It is soluble in water and ethanol, but insoluble in ether, acetone and chloroform. It is hygroscopic and irritating. It can be used in medicine, pesticide, fuel and other basic raw materials for organic synthesis, dyes, oil fields, etc. It is used as analytical reagent and also for organic synthesis.
Store in a low temperature, ventilated and dry place in the warehouse. Pay attention to fire prevention and store it separately from oxidant and strong acid.

  Methylamine hydrochloride is used to make medicines, dyes, etc. Examples of its application are as follows:

1) A method for preparing 3- methylamino -1- (2- thienyl)-1-propanol by using 2-acetylthiophene, paraformaldehyde and monomethylamine hydrochloride. The method provided by the invention is that the mixture of 3- methylamino -1-(2- thienyl) -1- acetone hydrochloride and dimer generated by it is not separated, and the dimer is directly converted into 3- methylamino -1-(2- thienyl) -1- acetone hydrochloride, and then reduced to the target compound 3- methylamino -1-(2- thienyl)-. The method has the characteristics of simple operation, easy control, high yield and low cost.

2) Preparation of solvent blue 78, which comprises the following steps: taking methanol aqueous solution as reaction solvent, fatty alcohol polyoxyethylene ether as dispersant, 1,4-dihydroxy anthraquinone and monomethylamine hydrochloride as main raw materials, and 1,4-dihydroxy anthraquinone leuco as initiator or catalyst, and obtaining the target product solvent blue 78 through closed kettle condensation reaction. In the invention, monomethylamine hydrochloride is used to replace volatile liquid monomethylamine, so that high-concentration nitrogen-containing wastewater is not generated; The arylamination of 1,4-dihydroxy anthraquinone in this invention uses peregal O as dispersant and 1,4-dihydroxy anthraquinone leuco as catalyst, and the product yield is increased from the traditional 70% to over 91%.

3) prepare an isotope-labeled methomyl -D3, dropwise adding an aqueous solution of monomethylamine hydrochloride -D3 into a dimethyl dithiocarboxylate solution, and reacting to obtain an intermediate, namely dimethyl S- methyl -N- methylcarboxylic acid; slowly introducing Cl2 into the intermediate at a low temperature, and sequentially adding an acid binding agent and m-cresol to prepare the marker methomyl -D3. Compared with the prior art, the deuterated isotope labeling process of the invention is simple, the yield is high, the isotope abundance is undiluted, and it is suitable for the laboratory production of methomyl -D3.

4) preparing 3- methylamino -1- phenylpropanol, which takes acetophenone, paraformaldehyde and monomethylamine hydrochloride as raw materials, heats them to 60-100 DEG C with alcohol as solvent in a closed container for reaction, and then cools and crystallizes them after concentration to obtain 3- methylamino -1- phenylpropanone hydrochloride; Then reducing in a solvent under the catalytic condition to obtain a 3- methylamino -1- phenylpropanol hydrochloride solution; The solution is adjusted to a pH value of 9-14 by liquid alkali, and 3- methylamino -1- phenylpropanol is obtained by extraction, solvent recovery and cyclohexane recrystallization. In the process of reducing to obtain 3- methylamino -1- phenylpropanol hydrochloride solution under catalytic conditions, raney nickel catalyst is used for hydrogenation reduction, and the conditions of raney nickel catalytic hydrogenation reduction are that the hydrogen pressure is 0.3-1.5 MPa and the temperature is 25-80 DEG C. The scheme of the invention has the characteristics of high product yield, good quality, low production cost, less discharge of three wastes and the like.