Pyridine 2 1h Thione
pyridine pyrrole pyrazine piperidine piperazine

pyridine-2(1H)-thione

    Specifications

    HS Code

    338815

    Chemical Formula C5H5NS
    Molar Mass 111.17 g/mol
    Appearance Yellow - white solid
    Odor Characteristic sulfur - containing odor
    Melting Point 167 - 169 °C
    Solubility In Water Slightly soluble
    Solubility In Organic Solvents Soluble in ethanol, acetone, etc.
    Pka Value Approx. 3.5 (for the thiol group)
    Boiling Point Decomposes before boiling
    Density Data may vary, around 1.2 - 1.3 g/cm³
    Stability Stable under normal conditions, but can be oxidized

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    Frequently Asked Questions

    As a leading pyridine-2(1H)-thione supplier, we deliver high-quality products across diverse grades to meet evolving needs, empowering global customers with safe, efficient, and compliant chemical solutions.

    What is the chemical structure of pyridine-2 (1H) -thione?
    Pyridine-2 (1H) -thione, its chemical formula is composed of pyridine-monothione group. Pyridine-6 has a nitrogen-containing hexagon, is aromatic, and is composed of five carbon atoms and one nitrogen atom interacting with each other in a common way, forming a planar hexagonal shape. At the second position of pyridine, that is, the second position of the nitrogen atom, there is a monothione group. This thione group consists of a carbon atom and a sulfur atom in the same phase, and the carbon atom is in the same phase as pyridine, and the atom on this carbon atom is removed, so it forms a 2 (1H) form, which means that the original atom at the second position forms a phase. Due to the aromaticity of pyridyl and the characteristics of thione groups, this compound is given its specific physical properties, and has developed certain uses in the fields of polymers and materials synthesis.
    What are the main uses of pyridine-2 (1H) -thione?
    Pyridine-2 (1H) -thione has a wide range of uses. In the field of medicine, this is a key synthetic intermediate. The preparation of many drugs relies on it as a starting material. Through delicate chemical reactions, drugs with antibacterial, anti-inflammatory and other effects can be derived, just like building a strong defense line for human health.
    In the field of agriculture, pyridine-2 (1H) -thione also plays an important role. It can be used to create efficient pesticides, give precise strikes to crop pests, and effectively protect the growth of crops, just like a loyal guardian guarding the hope of a bumper harvest in the field.
    In materials science, it also shows unique value. It can be integrated into various materials as additives to greatly improve the properties of materials. For example, to enhance the stability and durability of materials, it is like injecting a tough soul into materials, so that they can maintain excellent characteristics in different environments.
    In industrial production, it is often used in the preparation of catalysts. With its unique chemical properties, it can accelerate the process of many chemical reactions and improve production efficiency, just like adding a strong power to the wheels of industry, promoting the rapid operation of production. In short, pyridine-2 (1H) -thione plays an indispensable role in many fields and has a profound impact on human production and life.
    What are the physical properties of pyridine-2 (1H) -thione?
    Pyridine-2 (1H) -thione is one of the organic compounds. Its physical properties are quite unique, let me tell you in detail.
    Looking at its properties, at room temperature, pyridine-2 (1H) -thione is often in a solid state, which is a significant feature in its appearance. As for the color, it is mostly white to light yellow, like the first fall of autumn frost, and it looks like a light yellow light, with a light color.
    When it comes to the melting point, the melting point of this substance is in a specific range, about [X] ℃. Melting point is the critical temperature at which a substance changes from solid to liquid. The melting point characteristics of pyridine-2 (1H) -thione are of great significance in its separation, purification and identification.
    Solubility is also a key factor to consider its physical properties. Pyridine-2 (1H) -thione exhibits a certain solubility in organic solvents. Common organic solvents such as ethanol and acetone can partially dissolve it, which provides many conveniences for its application in organic synthesis reactions and related fields. However, its solubility in water is relatively limited, which is also a major characteristic of it.
    Furthermore, pyridine-2 (1H) -thione has a certain smell. Although its smell is not pungent and intolerable, it is also unique, with a special smell of organic sulfides. Although this smell is difficult to describe accurately, once it is perceived, it is difficult to forget.
    In addition, the density of the substance is also a specific value, about [X] g/cm ³. As an inherent physical property of the substance, density also plays an indispensable role in many practical application scenarios.
    In summary, the unique physical properties of pyridine-2 (1H) -thione, such as its properties, color, melting point, solubility, odor, and density, make it occupy a place in the field of organic chemistry and lay the foundation for many scientific research and industrial applications.
    What are the synthesis methods of pyridine-2 (1H) -thione?
    Pyridine-2 (1H) -thione, the synthesis method is as follows:
    can be synthesized from pyridine-2-thiol under the action of suitable oxidizing agent. In the ancient method, often with mild oxidizing agent, such as hydrogen peroxide, under appropriate solvent and temperature conditions, pyridine-2-thiol is oxidized by it, the hydrogen of the thiol group is removed, and the sulfur atom interacts with the nitrogen atom of the pyridine ring to form pyridine-2 (1H) -thione. When reacting, pay attention to the control of temperature. If the temperature is too high, the product will easily decompose or produce side reactions. < Br >
    Pyridine can also be used as the starting material. First, a halogen atom is introduced into the 2-position of pyridine, and then the halogen atom is replaced by a thiol salt. Finally, after oxidation, pyridine-2 (1H) -thione can be obtained. In this process, the halogenation step needs to select the appropriate halogenating agent and reaction conditions, so that the halogen atom is precisely introduced into the 2-position. In the substitution step, the activity and reaction environment of the thiol salt are also crucial, which affect the yield and purity of the reaction.
    Another method is to directly react with the pyridine derivative with a sulfur-containing reagent. For example, pyridine-2 (1H) -thione can be obtained by cyclization reaction with specific sulfur-containing heterocyclic compounds and pyridine derivatives in the presence of catalysts. The key to this approach lies in the selection of catalysts. Excellent catalysts can accelerate the reaction and improve the selectivity of products, and the adjustment of reaction conditions is also necessary, such as reaction time, pressure and other factors, which will affect the synthesis effect.
    What are the precautions for using pyridine-2 (1H) -thione?
    When using pyridine-2 (1H) -thione, all kinds of matters must not be ignored.
    This substance has specific chemical properties and should be used with caution. First, it is necessary to know its physical and chemical properties in detail. The properties, melting point, boiling point, solubility, etc. of this substance are all related to the method of use. Such as solubility, it is related to its solubility in any solvent in order to prepare a suitable solution and use it properly.
    Second, safety is a top priority. Pyridine-2 (1H) -thione may have certain toxicity and irritation. When operating, appropriate protective equipment, such as gloves, goggles, protective clothing, etc., must be worn to prevent contact with the skin and eyes and cause harm to the body. And it is used in well-ventilated places to avoid inhalation of its volatile gas and damage to respiration.
    Third, the nature of chemical reactions should also be paid attention to. Under different conditions, it reacts with other substances in different formulas and products. Use it to participate in the reaction, it is necessary to understand the reaction conditions, such as temperature, pH, catalyst, etc., to obtain the expected results, avoid the occurrence of unexpected reactions, and ensure the stability of experiments or production.
    Fourth, the method of storage is also exquisite. It should be stored in a cool, dry and ventilated place, protected from direct light and hot topics. And it needs to be stored separately with oxidants, acids and other substances to avoid improper mixing, chemical changes and dangerous conditions.
    In summary, the use of pyridine-2 (1H) -thione should be treated with caution in terms of physical and chemical properties, safety protection, chemical reactions, and storage methods, in order to achieve the purpose of use, and to protect the safety of people and the environment.