Pyrazinemethanethiol
pyridine pyrrole pyrazine piperidine piperazine

Pyrazinemethanethiol

    Specifications

    HS Code

    915765

    Chemical Formula C5H6N2S
    Molar Mass 126.18 g/mol
    Appearance Colorless to pale yellow liquid
    Odor Strong, unpleasant, sulfur - like odor
    Boiling Point 207 - 208 °C
    Density 1.17 g/cm³
    Solubility In Water Slightly soluble
    Solubility In Organic Solvents Soluble in many organic solvents like ethanol, ether
    Flash Point 88 °C
    Stability Stable under normal conditions, but may react with strong oxidizing agents

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    General Information
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    Frequently Asked Questions

    As a leading Pyrazinemethanethiol 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 chemistry of Pyrazinemethanethiol?
    Pyrazine mercaptan (Pyrazinemethanethiol) is an organic compound with unique properties in the field of chemistry. This substance is colorless to light yellow liquid and emits a strong and special odor. It is often described as similar to roasted nuts, meat aroma or sulfide smell. This odor characteristic makes it popular in the food fragrance industry and can add unique flavor to food.
    From the perspective of chemical structure, pyrazine mercaptan contains pyrazine ring and methionyl group. Pyrazine ring is a six-membered nitrogen heterocycle, which gives the compound certain stability and electronic properties; methionyl group contains sulfur atom, which has rich chemical activity. Its lone pair electrons make pyrazine mercaptan easily participate in chemical reactions, such as nucleophilic substitution reactions. Under appropriate conditions, the sulfur atom of the methylthiolyl group can attack the electrophilic reagent and form new chemical bonds, thereby deriving various derivatives and providing various possibilities for organic synthesis.
    Pyrazine methanethiol also has certain solubility. In view of its polar group and relatively small molecular structure, it exhibits good solubility in organic solvents such as ethanol and ether, but its solubility in water is relatively limited. Because the overall polarity of the molecule is not enough to overcome the hydrogen bonding between water molecules, it is more likely to dissolve in non-polar or weakly polar organic solvents.
    In terms of chemical reactivity, in addition to nucleophilic substitution reactions, pyrazine methanethiol can also participate in oxidation-reduction reactions. Sulfur atoms can be oxidized into different oxidation states, such as sulfoxide or sulfone, altering the chemical and physical properties of molecules. This property is of great significance in the field of organic synthesis and materials science, where researchers can precisely modify molecules to meet specific needs. In the field of food, its odor and flavor properties make it a favorite raw material for perfumers, which can simulate the aroma of natural foods and improve the sensory quality of food. In the field of chemical synthesis, its unique structure and reactivity provide key intermediates for the construction of complex organic molecules, driving the continuous development of organic synthesis chemistry.
    What are the physical properties of Pyrazinemethanethiol?
    Pyrazine methanethiol, this is an organic compound. Its physical properties are very interesting, let me talk about them one by one.
    Looking at its appearance, it is usually a colorless to light yellow liquid, just like the early morning light, clear and unique color. Its smell is rich and characteristic, like the smell of a special fragrance, which is easily detectable in a specific environment.
    When it comes to boiling point, it is within a specific temperature range, which gives it the characteristic of transforming from liquid to gaseous state under specific conditions. The melting point makes it solidify at a certain low temperature environment and assume a solid state.
    In terms of solubility, pyrazine methanethiol exhibits good solubility in organic solvents, such as alcohols, ethers, etc., just like fish getting water, it can blend with these organic solvents; however, in water, its solubility is relatively limited, just like the insolubility of oil and water, only a small amount can be dispersed.
    Density is also one of its important physical properties. The specific density makes it have a unique position and behavior in liquid systems, and plays a key role in many practical application scenarios.
    These physical properties are of great significance in the fields of chemical industry, medicine, etc., and provide an important basis for the preparation, separation, and application of related substances. Just like the cornerstone is indispensable for high-rise buildings.
    What are the main uses of Pyrazinemethanethiol?
    Pyrazine mercaptan is an organic compound. It has a wide range of uses, especially in the field of flavors.
    In the fragrance industry, pyrazine mercaptan is often used as a flavoring agent. It has a unique smell and can add an attractive aroma to various products. For example, in food flavors, it can be used in candies, beverages, baked goods, etc. Adding it to candies can give candies a different flavor, make their aroma more intense, and attract diners; adding it to beverages can make beverages emit a unique aroma and improve the taste and quality of drinks. Baked goods are perfumed by it, and the aroma is overflowing and appealing.
    In the tobacco industry, pyrazine mercaptan is also used. It can improve the aroma of tobacco, reduce miscellaneous gases, and improve the smoking quality of tobacco. Treated tobacco has a more mellow aroma and better smell, which is favored by smokers.
    In addition, in the fields of daily chemical products such as perfumes and air fresheners, pyrazine mercaptan can be used to prepare characteristic fragrances with its unique aroma. Fragrances are prepared with richer aroma levels and unique; air fresheners contain it, which can effectively improve the smell of the air and create a comfortable atmosphere.
    pyrazine mercaptan is an important raw material in many industries. With its unique aroma characteristics, it adds flavor to products in various industries, enhances product quality and attractiveness, and plays a significant role in modern industrial production and daily life.
    What are Pyrazinemethanethiol synthesis methods?
    Pyrazinemethanethiol is an important organic compound, and its synthesis methods are various and ingenious. The details are as follows:
    First, pyrazine is used as the initial raw material, and halogen atoms are introduced into the specific position of pyrazine by halogenation reaction. This step requires selecting the appropriate halogenating agent and reaction conditions. For example, in a suitable solvent, the halogenating agent is mixed with pyrazine in a specific ratio, and the temperature control reaction can obtain halogenated pyrazine. Then, the halogenated pyrazine meets the sulfur-containing nucleophile, and the nucleophilic substitution reaction occurs. The sulfur atom substitutes the halogen atom cleverly, and the Pyrazinemethanethiol is obtained. This path step is clear, but the selectivity of the halogenation step and the efficiency of subsequent nucleophilic substitution need to be carefully regulated.
    Second, starting from the pyrazine derivatives with suitable substituents, through functional group transformation, the target molecular structure is gradually built. For example, the substituents of pyrazine derivatives are first subjected to a specific reaction to convert them into active groups that are easy to connect with sulfur-containing groups, and then react with sulfur-containing reagents to construct sulfur-containing carbon-sulfur bonds, and finally form Pyrazinemethanethiol. This approach requires in-depth insight into the properties and reactivity of pyrazine derivatives, and a reasonable reaction route is designed.
    Third, the reaction strategy is catalyzed by transition metals. Transition metal catalysts can activate substrate molecules and promote the formation of specific chemical bonds. If transition metals such as palladium and nickel are used as catalysts, the coupling reaction between the substrate containing pyrazine structure and the sulfur-containing reagent occurs in the presence of suitable ligands, bases and reaction solvents, and the Pyrazinemethanethiol is efficiently generated. This method relies heavily on the activity and selectivity of transition metal catalysts, and the reaction conditions are mild, and there are few side reactions. It is favored in modern organic synthesis.
    The above methods are all effective paths for the synthesis of Pyrazinemethanethiol. However, in actual operation, the appropriate synthesis method should be carefully selected according to the availability of raw materials, the ease of control of reaction conditions, and the purity and yield of the target product.
    Pyrazinemethanethiol What are the precautions during storage and transportation?
    Pyrazine methyl mercaptan is an organic compound. When storing and transporting, pay attention to the following things:
    First, when storing, choose a cool, dry and well-ventilated place. Because pyrazine methyl mercaptan may be sensitive to temperature and humidity, high temperature and humidity may cause it to deteriorate, thereby damaging its quality and stability. Therefore, in the storage place, appropriate temperature and humidity control equipment should be installed to ensure the suitability of the environment.
    Second, this compound may have a certain volatile and irritating odor, and may be harmful to the human body. Therefore, there should be good sealing measures in the storage place to prevent it from evaporating into the environment. When transporting, it should also be ensured that the packaging is tight and there is no risk of leakage. If the package is damaged, the leakage of pyrazine methanethiol will not only pollute the environment, but also endanger the health of the transporters.
    Third, pyrazine methanethiol may be chemically active and easily react with other substances. Therefore, during storage and transportation, it is necessary to avoid contact with oxidizing agents, acids, bases and other incompatible substances. If mixed or mixed with it, or cause violent chemical reactions, causing serious accidents such as fire and explosion.
    Fourth, whether it is storage or transportation, it should follow relevant regulations and standards. Operators must be professionally trained and familiar with the characteristics of pyrazine methanethiol, safety precautions and emergency treatment methods. At the same time, at storage and transportation sites, appropriate safety protection equipment and emergency relief materials should be prepared, so that emergencies can be responded to promptly.