2 Mercaptobenzothiazole
quinoline thiophene imidazole thiazole

2-Mercaptobenzothiazole

    Specifications

    HS Code

    493302

    Chemical Formula C7H5NS2
    Molar Mass 167.25 g/mol
    Appearance Yellowish - white to light brown solid
    Odor Characteristic mercaptan - like odor
    Melting Point 173 - 178 °C
    Boiling Point 300 °C (decomposes)
    Solubility In Water Insoluble
    Solubility In Organic Solvents Soluble in ethanol, benzene, chloroform
    Density 1.42 g/cm³
    Acidity Pka 3.8
    Flash Point 155 °C

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    General Information
    Where to Buy 2-Mercaptobenzothiazole in China?
    As a trusted 2-Mercaptobenzothiazole manufacturer, we deliver: Factory-Direct Value: Competitive pricing with no middleman markups, tailored for bulk orders and project-scale requirements. Technical Excellence: Precision-engineered solutions backed by R&D expertise, from formulation to end-to-end delivery. Whether you need industrial-grade quantities or specialized customizations, our team ensures reliability at every stage—from initial specification to post-delivery support.
    Frequently Asked Questions

    As a leading 2-Mercaptobenzothiazole 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-Mercaptobenzothiazole?
    2-Mercaptobenzothiazole has a wide range of uses. In the rubber industry, it is an indispensable vulcanization accelerator. This agent can speed up the vulcanization process of rubber, greatly improve the vulcanization efficiency, and allow rubber products to quickly achieve the expected physical and mechanical properties, such as enhanced hardness, improved tensile strength and wear resistance. With it, the production cycle of rubber products can be significantly shortened, which is of great significance in large-scale industrial production.
    In the field of metal corrosion inhibition, 2-mercaptobenzothiazole also shows excellent efficacy. It can form a dense and stable protective film on the metal surface, effectively blocking the contact between the corrosive medium and the metal matrix, thereby slowing down the metal corrosion rate. Especially for copper and its alloys, the protective effect is particularly outstanding, and it is often used in anti-corrosion treatment of copper products such as plumbing equipment and electronic components.
    In the field of analytical chemistry, it can act as an analytical reagent. With the formation of complexes with specific metal ions with unique properties, it is used for qualitative and quantitative analysis of metal ions. For example, in some metal ion content detection experiments, the type and content of metal ions can be accurately determined by observing the phenomenon presented by the reaction with 2-mercaptobenzothiazole.
    In addition, in the fields of medicine and pesticides, 2-mercaptobenzothiazole has also been involved. In the field of medicine, some of its derivatives may have specific biological activities and can be used as precursor compounds for drug development; in the field of pesticides, based in part on the compounds it synthesizes, it may have insecticidal, bactericidal and other effects, providing assistance for agricultural production.
    What are the physical and chemical properties of 2-Mercaptobenzothiazole
    2-Mercaptobenzothiazole is also an organic compound. Its physicochemical properties can be investigated quite a bit.
    Looking at its properties, under normal conditions, it is light yellow monoclinic needle-like or leaf-like crystals, and has a specific odor. The melting point is between 178-180 ° C. This temperature characteristic is critical for identification and related process operations. The boiling point is about 285 ° C. The state of heat change can be known from this.
    In terms of solubility, it is slightly soluble in water, but soluble in organic solvents such as ethanol, acetone, ethyl acetate, and dichloromethane. This property makes it behave differently in different solvent systems and is of great significance in chemical synthesis and preparation. In the chemical properties of
    , its sulfhydryl group is active and can react with many metal ions to form stable complexes. This reaction characteristic is widely used in the fields of metal corrosion inhibition and analysis and detection. And the benzothiazole ring in its molecular structure endows it with certain conjugation stability, which affects its chemical activity and reaction selectivity. In acid-base environments, 2-mercaptobenzothiazole also exhibits different reaction behaviors. It can be protonated in case of acid, and may deproton in case of base. It participates in various organic reactions, such as nucleophilic substitution, condensation, etc. It is an important intermediate in organic synthesis chemistry. It can be prepared through various chemical reaction paths to obtain various functional materials and pharmaceutical intermediates.
    What are the precautions 2-Mercaptobenzothiazole in the production process?
    2-Mercaptobenzothiazole is a commonly used raw material in chemical production. In the production process, many key precautions need to be paid attention to.
    Bearing the brunt, safety protection must not be ignored. This substance has certain toxicity and irritation, and operators must strictly wear protective clothing, gloves and goggles and other protective equipment to prevent skin contact and inhalation. The workshop should maintain good ventilation, discharge volatile harmful gases in time, reduce the concentration of harmful substances in the air, and ensure the safety of the working environment.
    Furthermore, precise control of the reaction conditions is essential. Its synthetic reaction requires strict requirements on temperature, pH and reaction time. Too high or too low temperature may cause abnormal reaction rate, affecting product purity and yield. If the pH is not suitable, it will also interfere with the reaction process. Therefore, it is necessary to monitor and adjust the reaction conditions in real time with precise instruments and professional means to ensure the smooth progress of the reaction.
    The quality of raw materials is also key. High-quality raw materials can produce high-quality products. When purchasing, it is necessary to strictly select suppliers and carefully check the purity of raw materials and impurity content. Too many impurities will cause side reactions in the reaction, which will seriously affect product quality.
    The maintenance and cleaning of production equipment should not be underestimated. 2-Mercaptobenzothiazole production often involves corrosive substances, which can easily cause damage to equipment. Regular inspection and maintenance of equipment to prevent leakage and ensure normal operation of equipment can ensure production stability and personnel safety.
    In addition, waste disposal cannot be ignored. Waste residues, waste liquids and other wastes generated in the production process must be properly disposed of in accordance with environmental regulations. Do not discharge at will to avoid pollution to the environment. After professional treatment, resources can be recycled and turned into treasures.
    Only by paying full attention to the above precautions and strictly controlling all aspects of production can we ensure the safe, efficient and environmentally friendly production of 2-mercaptobenzothiazole.
    What is the market outlook for 2-Mercaptobenzothiazole?
    2-Mercaptobenzothiazole, a chemical raw material, has a wide range of uses, especially in the rubber industry. This substance is a commonly used accelerator in the rubber vulcanization process, which can speed up the vulcanization rate and improve the physical properties of rubber products, such as strength and wear resistance. Therefore, the demand for rubber products in the rubber industry is constant.
    Looking at its market prospects, with the continuous development of the global rubber industry, the demand for rubber products in downstream fields such as the automobile industry and tire manufacturing industry is also on the rise. Automobile production is increasing year by year, and tire replacement and new demand are injecting impetus into the rubber industry. 2-mercaptobenzothiazole, as a key additive to rubber vulcanization, is also benefited by it, and the market scale is expected to expand.
    Furthermore, the rubber and plastic materials, adhesives and other industries also have demand for 2-mercaptobenzothiazole. With the progress of technology and production capacity expansion in such industries, the amount of this additive may also be on the rise.
    However, its market also faces challenges. Environmental regulations are increasingly stringent, and some sulfur-containing additives may be regulated due to potential environmental impacts. Although 2-mercaptobenzothiazole is widely used, it also needs to cope with environmental pressure. Enterprises need to increase R & D investment and improve production processes to meet environmental protection requirements.
    Overall, 2-mercaptobenzothiazole has a solid foundation in rubber and other industries, and the market prospect is promising. However, it is necessary to adapt to the trend of environmental protection, leveraging technological innovation and process optimization to resolve challenges and seek long-term development.
    What are 2-Mercaptobenzothiazole synthesis methods?
    2-Mercaptobenzothiazole, an organic compound, is an important vulcanization accelerator in the rubber industry. Its synthesis method was studied by the ancients, and the following common methods are described.
    One is the o-nitrochlorobenzene method. Starting with o-nitrochlorobenzene, it is co-heated with sodium hydrosulfide, and after a condensation reaction, sodium o-aminophenzothiophenol is obtained. After the action of a cyclizing agent, it is cyclized to obtain 2-mercaptobenzothiazole. In this process, the reaction conditions are crucial, and the yield and purity of the product are affected by temperature, time, and the ratio of reactants. If the temperature is too low, the reaction will be slow and the yield will not be high; if the temperature is too high, it may cause a cluster of side reactions and the product will be impure.
    The second is the aniline method. Using aniline, carbon disulfide and sulfur as raw materials, aniline and carbon disulfide are first interacted to form diphenylthiourea, and then the target product is obtained by sulfide cyclization reaction. The raw materials of this method are easy to obtain, but the reaction steps are slightly complicated, and each step needs to be carefully regulated. When sulfide cyclization, the choice and dosage of catalyst are also important. Appropriate catalysts can accelerate the reaction and improve the yield.
    The third is the o-nitrothiophenol method. The o-nitrothiophenol is reduced and cyclized to produce 2-mercaptobenzothiaz The reduction step often uses iron powder, zinc powder, etc. as reducing agents to reduce the nitro group of o-nitrothiophenol to an amino group, and then cyclize it under suitable conditions. This path step is simple, but the preparation of o-nitrothiophenol also requires skills, and attention should be paid to controlling the reaction conditions during the reduction process to prevent excessive reduction.
    All these numbers have their own advantages and disadvantages, and all depend on the operator to choose according to the actual needs, such as the cost of raw materials, the requirements of products, etc., in order to achieve the best synthetic effect.