2 Mercapto 5 Methylbenzimidazole
quinoline thiophene imidazole thiazole

2-Mercapto-5-methylbenzimidazole

    Specifications

    HS Code

    104658

    Chemical Formula C8H8N2S
    Molecular Weight 164.23 g/mol
    Appearance Yellow to brown solid
    Melting Point 205 - 209 °C
    Solubility In Water Insoluble
    Solubility In Organic Solvents Soluble in common organic solvents like ethanol, acetone
    Pka Around 7.5 (approximate value for the thiol group)
    Odor Characteristic sulfur - containing odor
    Stability Stable under normal conditions, but sensitive to strong oxidizing agents

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    General Information
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    Frequently Asked Questions

    As a leading 2-Mercapto-5-methylbenzimidazole supplier, we deliver high-quality products across diverse grades to meet evolving needs, empowering global customers with safe, efficient, and compliant chemical solutions.

    What are the main uses of 2-Mercapto-5-methylbenzimidazole?
    2-Mercapto-5-methylbenzimidazole, this is an organic compound. It has a wide range of uses and has important applications in many fields.
    First, in the rubber industry, it can be used as a vulcanization accelerator. It can speed up the vulcanization process of rubber and improve the physical and mechanical properties of vulcanized rubber, such as enhancing the strength, toughness and wear resistance of rubber. This is like giving rubber a solid body, so that it can play a stable role in various environments. For example, the manufacture of automobile tires requires the use of such accelerators to make tires more durable and adapt to complex road conditions.
    Second, in the field of medicine, it also has important uses. It is a key intermediate in the synthesis of certain drugs. With its unique chemical structure, it participates in the synthesis of many drugs, providing a key cornerstone for pharmaceutical research and development. Through specific chemical reactions, drug molecules with specific pharmacological activities can be constructed for the treatment of various diseases.
    Third, in the field of metal corrosion inhibition, 2-mercapto-5-methylbenzimidazole can be used as a corrosion inhibitor. It can form a dense protective film on the metal surface, effectively blocking the contact between the corrosive medium and the metal, thereby slowing down the metal corrosion rate. Just like wearing a protective armor for the metal, prolonging the service life of metal equipment is of great significance in industries prone to metal corrosion such as chemicals and petroleum.
    Fourth, in the electroplating industry, it can be used as an additive. It can improve the quality of the coating, make the coating more uniform and detailed, and enhance the bonding force between the coating and the substrate. Make the electroplating products more beautiful in appearance and better in performance, and are widely used in decorative electroplating and functional electroplating and other fields.
    What are the physical properties of 2-Mercapto-5-methylbenzimidazole?
    2-Mercapto-5-methylbenzimidazole is one of the organic compounds. Its physical properties are quite worthy of detailed observation.
    Looking at its morphology, under room temperature and pressure, it often takes the shape of white to light yellow crystalline powder, which is easy to identify and handle.
    When it comes to the melting point, it is about 280-285 ° C. As one of the important physical properties of a substance, this value indicates that it will undergo physical state transformation in a specific temperature range, and it is of great significance to control its state in various reactions and applications.
    Another word for solubility, its slight solubility in water, this property implies that it interacts weakly with water molecules. However, it is soluble in some organic solvents, such as ethanol, acetone, etc. This solubility characteristic plays a key guiding role in the selection of suitable solvents to achieve its dissolution, participate in reactions or prepare preparations in the fields of organic synthesis, drug preparation, etc.
    In addition, it has certain stability and can maintain its own chemical structure and properties under conventional environmental conditions. When encountering extreme conditions such as specific chemical reagents, high temperature, and strong light, its structure or properties may change, which is also something that needs to be paid attention to during use and storage.
    In summary, the physical properties of 2-mercapto-5-methylbenzimidazole have important reference value in chemical research, industrial production and related application fields, which lays the foundation for its rational application.
    What is the chemical synthesis method of 2-Mercapto-5-methylbenzimidazole?
    The synthesis of 2-mercapto-5-methylbenzimidazole is a key technique in the field of chemistry. In the past, to make this substance, a number of methods were often used.
    First, it is based on o-phenylenediamine and formic acid. The two are in a suitable reactor, under a specific temperature and pressure, and the condensation reaction starts first. The amino group in o-phenylenediamine interacts with the carboxyl group of formic acid, and loses water to form the initial form of benzimidazole ring. At this stage, temperature control is extremely important. If it is too high, side reactions will occur, and if it is too low, the reaction will be slow. When the reaction reaches a certain level, cool down and introduce a sulfur source, such as sodium hydride. The sulfur atom of the sulfur source replaces the hydrogen atom at a specific position on the benzimidazole ring to form 2-mercapto-5-methylbenzimidazole.
    Second, 5-methylbenzimidazole is used as the starting material. It is first halogenated. Commonly used halogenating agents such as bromine or chlorine are halogenated at a specific position on the 5-methylbenzimidazole ring with the help of light or catalyst, and halogen atoms are introduced. Later, nucleophilic substitution reactions occur with thiols, such as potassium hydride. The sulfur anion of the thiol salt attacks the carbon connected to the halogen atom of the halogenated 5-methylbenzimidazole, and the halogen atom leaves to form the target product 2-mercapto-5-methylbenzimidazole. In this process, the halogenation step needs to select the appropriate halogenating agent and reaction conditions to introduce the halogen-retaining atoms precisely; during the nucleophilic substitution reaction, the properties of the solvent and the temperature all affect the effect of the reaction.
    There are also those who use o-nitrotoluene as the starting material. First, the methyl group is oxidized to a carboxyl group, and then the nitro group is reduced to an amino group to obtain an anthranilic acid derivative. After reaction with vulcanizing agent, methylamine, etc., through cyclization and other steps, the final product is 2-mercapto-5-methylbenzimidazole. This route is complicated, but the raw materials are easy to obtain, and it may have potential for preparation on an industrial scale. Each step of the reaction needs to be carefully regulated to achieve high efficiency and high purity production.
    What are the precautions in storage and transportation of 2-Mercapto-5-methylbenzimidazole?
    2-Mercapto-5-methylbenzimidazole is an organic compound. When storing and transporting, the following things must be paid attention to.
    First, the storage environment is the most critical. It should be stored in a cool, dry and well-ventilated place. If this compound is heated, it may change its chemical properties and even cause decomposition. Humid environment will also affect it or cause it to deteriorate. Therefore, it should be kept away from heat sources and water sources to ensure that the storage place is dry and refreshing.
    Second, it needs to be isolated from oxidizing substances. 2-Mercapto-5-methylbenzimidazole contains a sulfhydryl group, which has a certain degree of reduction. If it comes into contact with oxidizing substances, it is very prone to oxidation reactions, which will not only damage the compound itself, but also cause danger in serious cases. Such as strong oxidants, be sure to avoid coexisting with them.
    Third, during transportation, ensure that the packaging is intact. This compound may be potentially harmful to the human body and the environment. If the packaging is damaged, it may leak out, which may pollute the environment and may also endanger the safety of transporters. Therefore, the packaging material must be strong and durable and can withstand certain external shocks.
    Fourth, relevant transportation regulations should be followed. Due to its unique nature, it is necessary to operate in accordance with relevant regulations such as hazardous chemicals during transportation. Transportation personnel need to undergo professional training and be familiar with its characteristics and emergency treatment methods, so that they can properly handle various situations during transportation and ensure transportation safety.
    What is the market price range for 2-Mercapto-5-methylbenzimidazole?
    2-Mercapto-5-methylbenzimidazole is an organic compound that has attracted much attention in the chemical industry. In terms of market price, it fluctuates due to multiple factors.
    The first to bear the brunt, the cost of raw materials is the key factor. If the price of various raw materials required for the synthesis of this compound fluctuates, it will have a direct impact on the price of 2-mercapto-5-methylbenzimidazole. If the price of raw materials rises due to scarcity or imbalance in market supply and demand, the cost of the finished product will rise, and the price will also rise.
    Furthermore, the difficulty and advanced level of the production process also affect its price. If the production process is complicated, high-end technology and precision equipment are required, and the production environment is strict, it will undoubtedly increase the production cost, which will be reflected in the market price. And if advanced technology can improve production efficiency, reduce losses, or make the price more reasonable.
    The market supply and demand relationship is also the core factor. When the market demand for 2-mercapto-5-methylbenzimidazole is strong, and the supply is relatively insufficient, the price will rise; on the contrary, if the market is saturated and the supply exceeds the demand, the price will easily fall.
    In addition, external factors such as macroeconomic situation, policies and regulations should not be underestimated. The economic situation is stable, the industry is developing smoothly, and the price may remain stable; and the stricter environmental protection policies, resulting in limited production, may also lead to price fluctuations.
    Overall, the market price of 2-mercapto-5-methylbenzimidazole roughly fluctuates from tens to hundreds of yuan per kilogram. However, this is only a general category. The actual price still depends on the specific time and space, transaction quantity, quality specifications and other factors. When the actual transaction is carried out, it is necessary to study the market conditions in detail to obtain an accurate price.