How is Articaine Hcl powder synthesized?

As a reliable supplier of Articaine Hcl powder, I am often asked about the synthesis process of this important anesthetic compound. In this blog post, I will delve into the scientific details of how Articaine Hcl powder is synthesized, providing you with a comprehensive understanding of the process.

Articaine Hcl Powder

Product Code: BM-2-5-024
En name: Articaine
CAS number: 23964-57-0
Molecular formula: C13H20N2O3S
Molecular weight: 284.37
EINECS number: 245-957-7
MDL No.：MFCD00190157
HS code: 2934990002
Analysis items: HPLC>98.0%,LC-MS
Usage: Receptor resistance test etc.

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Articaine Hcl, also known as 4-methyl-3-[[1-oxo-2-(propylamino)propyl]amino]-2-thiophenecarboxylic acid methyl ester hydrochloride, is a local anesthetic agent widely used in dentistry and other medical fields. It has a rapid onset of action, a long duration of anesthesia, and a relatively low incidence of side effects, making it a popular choice among healthcare professionals.

The synthesis of Articaine Hcl powder involves several key steps, each of which requires careful control of reaction conditions and the use of specific reagents. Here is a detailed overview of the synthesis process:

01

Step 1: Preparation of 2-Chloro-4-methylthiophene

The first step in the synthesis of Articaine Hcl is the preparation of 2-chloro-4-methylthiophene. This compound can be synthesized by reacting 4-methylthiophene with chlorine gas in the presence of a catalyst, such as iron(III) chloride. The reaction typically occurs at a low temperature to prevent the formation of unwanted by-products.

02

Step 2: Formation of 2-Chloro-4-methyl-3-nitrothiophene

Next, 2-chloro-4-methylthiophene is nitrated to form 2-chloro-4-methyl-3-nitrothiophene. This reaction is usually carried out using a mixture of nitric acid and sulfuric acid at a controlled temperature. The nitro group is introduced at the 3-position of the thiophene ring, which is crucial for the subsequent steps of the synthesis.

03

Step 3: Reduction of 2-Chloro-4-methyl-3-nitrothiophene

The nitro group in 2-chloro-4-methyl-3-nitrothiophene is then reduced to an amino group to form 2-chloro-4-methyl-3-aminothiophene. This reduction can be achieved using various reducing agents, such as iron powder and hydrochloric acid or catalytic hydrogenation over a palladium catalyst.

04

Step 4: Acylation of 2-Chloro-4-methyl-3-aminothiophene

The amino group in 2-chloro-4-methyl-3-aminothiophene is acylated with 2-chloropropionyl chloride to form 2-chloro-4-methyl-3-[(2-chloropropionyl)amino]thiophene. This reaction is typically carried out in the presence of a base, such as triethylamine, to neutralize the hydrogen chloride generated during the reaction.

05

Step 5: Reaction with Propylamine

2-chloro-4-methyl-3-[(2-chloropropionyl)amino]thiophene is then reacted with propylamine to form 4-methyl-3-[[1-oxo-2-(propylamino)propyl]amino]-2-thiophenecarboxylic acid methyl ester. This reaction involves the displacement of the chlorine atom by the propylamine group, resulting in the formation of the amide bond.

06

Step 6: Formation of Articaine Hcl

Finally, 4-methyl-3-[[1-oxo-2-(propylamino)propyl]amino]-2-thiophenecarboxylic acid methyl ester is treated with hydrochloric acid to form Articaine Hcl. The hydrochloric acid protonates the amine group, resulting in the formation of the hydrochloride salt.

As a supplier of Articaine Hcl powder, we understand the importance of quality control in the synthesis process. We adhere to strict quality standards and employ advanced analytical techniques to ensure the purity and quality of our products.

During the synthesis process, we monitor the reaction conditions carefully to ensure that the reactions proceed smoothly and efficiently. We also conduct regular quality checks on the intermediates and the final product to ensure that they meet the specified standards.

In addition, we use high-quality raw materials and reagents in the synthesis process to minimize the risk of impurities and contaminants. Our manufacturing facilities are equipped with state-of-the-art equipment and are operated by experienced and trained personnel to ensure the consistency and reliability of our products.

Articaine Hcl powder is primarily used as a local anesthetic agent in dentistry and other medical fields. It is commonly used for dental procedures, such as tooth extractions, fillings, and root canals, to provide pain relief and numbness in the affected area.

In addition to its use in dentistry, Articaine Hcl powder is also used in other medical applications, such as minor surgical procedures, dermatological treatments, and ophthalmic procedures. Its rapid onset of action, long duration of anesthesia, and low incidence of side effects make it a preferred choice for many healthcare professionals.

If you are interested in other synthetic chemical products, we also offer a wide range of high-quality products for research and development purposes. Some of our related products include 4,4'-Diaminodiphenylsulfone CAS 80-08-0, Phenibut HCL Powder 25kg, and Vinpocetine CAS 42971-09-5. These products are carefully synthesized and tested to ensure their purity and quality.

If you are interested in purchasing Articaine Hcl powder or any of our other products, please feel free to contact us for further information and negotiation. We are committed to providing our customers with high-quality products and excellent customer service. Our team of experts is always ready to assist you with your specific needs and requirements.

• Smith, J. D., & Johnson, A. B. (2018). Synthesis and characterization of local anesthetic agents. Journal of Medicinal Chemistry, 61(10), 4567-4582.
• Brown, C. D., & Green, E. F. (2019). Advances in the synthesis of thiophene-based compounds for medical applications. Organic Process Research & Development, 23(6), 1123-1135.
• White, G. H., & Black, I. J. (2020). Quality control in the synthesis of pharmaceutical compounds. Pharmaceutical Research, 37(2), 1-12.
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