1h 1 2 3 Triazole
pyridine pyrrole pyrazine piperidine piperazine

1H-1,2,3-triazole

    Specifications

    HS Code

    954220

    Name 1H-1,2,3-triazole
    Molecular Formula C2H3N3
    Molar Mass 69.06 g/mol
    Appearance Colorless to light yellow liquid or solid
    Odor Faintly ammoniacal
    Melting Point 26 - 28 °C
    Boiling Point 204 - 205 °C
    Density 1.14 g/cm³
    Solubility In Water Soluble
    Pka 10.2
    Flash Point 94 °C
    Logp -0.49

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    Frequently Asked Questions

    As a leading 1H-1,2,3-triazole 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 application fields of 1H-1,2,3-triazole?
    1H-1,2,3-triazole is a unique category of organic compounds, with a wide range of uses and outstanding performance in various fields.
    In the field of medicine, 1H-1,2,3-triazole is a key building block for the development of new drugs. Because of its unique stability and biological activity, chemists often use it to construct novel drug molecules. For example, some antibacterial drugs, with the structure of 1H-1,2,3-triazole, can effectively inhibit the growth and reproduction of bacteria, and treat diseases and diseases for patients. There are also anti-tumor drug development, this structure can precisely act on tumor cell targets, interfere with tumor cell metabolism, inhibit its proliferation, and contribute to solving cancer problems.
    In the field of materials science, 1H-1,2,3-triazole has also made outstanding contributions. First, it can be used to prepare high-performance polymer materials. After clever chemical synthesis, the 1H-1,2,3-triazole structure is introduced into the main chain or side chain of the polymer, which can significantly improve the thermal stability and mechanical properties of the polymer. For example, special polymer materials used in aerospace can withstand extreme temperatures and strong external forces when incorporated into this structure, ensuring the safe and stable operation of aircraft. Second, in the preparation of functional materials, 1H-1,2,3-triazole can endow materials with unique optical and electrical properties. For example, some luminescent materials have greatly increased their luminous efficiency due to this structure, which can be used in display screens, lighting and other fields.
    In the field of agricultural chemistry, 1H-1,2,3-triazole has also emerged. Many pesticide varieties take advantage of their structural advantages to demonstrate efficient insecticidal and bactericidal activities. Such pesticides can precisely act on the specific physiological processes of pests, play a good role in protecting crops, and have little impact on the environment. They meet the needs of the current green agriculture development and help the sustainable development of agriculture.
    What are the synthesis methods of 1H-1,2,3-triazole?
    The method of synthesis of 1H-1,2,3-triazole has been used by many parties throughout the ages. One is the cyclization reaction of azide and alkyne as the basis, which is the main method of "click chemistry". The azide and alkyne, under the catalysis of copper (I) ions, react rapidly like yin and yang to produce 1H-1,2,3-triazole. This reaction condition is mild and has good selectivity. It is as accurate and efficient as butylated cattle, and is often used by today's synthesizers.
    Second, the reaction of nitrile oxide with acetylene can also be obtained. Nitrile oxides are very active, and when they meet acetylene, they react quickly like dry firewood and fire to build the skeleton of 1H-1,2,3-triazole. However, this reaction needs to be carefully regulated, because the reaction is violent, and if you are not careful, it is easy to lose control. It is like controlling a strong horse, which requires extremely high skills.
    Furthermore, starting with halides and sodium azide, the azide is obtained first, and then reacts with alkynes, which is also a path. Although this path is slightly cumbersome, the raw materials are easy to obtain and the operation is not complicated. If you are careful step by step, you can also obtain pure 1H-1,2,3-triazole.
    There are also amides and hydrazines as raw materials, which are converted in multiple steps to form 1H-1,2,3-triazole. This journey is like a long journey, with many steps, but each step can be followed according to the rules. If you are patient and meticulous, you can reach the goal smoothly.
    All synthesis methods have advantages and disadvantages. Synthesizers need to weigh and choose according to the availability of raw materials, the cost, and the difficulty of reaction. Only then can they obtain the required 1H-1,2,3-triazole in the best way.
    What are the specific functions of 1H-1,2,3-triazole in the field of medicine?
    1H-1,2,3-triazole has a wide range of effects in the field of medicine. It can be used as an active ingredient of drugs to prevent and treat diseases.
    In the field of antibacterial drugs, the structure of 1H-1,2,3-triazole can strengthen the effect of drugs on bacterial cell walls and cell membranes, and improve antibacterial activity. For example, some antibacterial agents containing this structure can effectively inhibit the growth of Gram-positive and negative bacteria, and have significant effect on respiratory and urinary tract infections.
    In terms of antiviral drugs, 1H-1,2,3-triazole can exert antiviral effect by interfering with key links in the viral replication process. Like some anti-influenza virus drugs, because of this structure, it can inhibit the activity of viral neuraminidase, hinder the release and transmission of virus, reduce influenza symptoms, and shorten the course of disease.
    In the field of anti-cancer drugs, 1H-1,2,3-triazole also has outstanding performance. It can bind to specific targets in cancer cells and interfere with the proliferation, differentiation and metastasis of cancer cells. Some anti-cancer drugs containing this structure can induce cancer cell apoptosis, which is of positive significance for the treatment of many cancers, such as lung cancer and breast cancer.
    In addition, 1H-1,2,3-triazole is often used as a linking group in drug development. It can cleverly connect different active fragments, optimize the physical and chemical properties and pharmacokinetic properties of drugs, such as improving drug solubility, stability, and affinity between drugs and targets, thereby improving drug efficacy and safety.
    Therefore, 1H-1,2,3-triazole is an indispensable part in the field of medicine, and has made remarkable contributions to promoting the development of medicine and improving human health.
    What are the physical and chemical properties of 1H-1,2,3-triazole?
    1H-1,2,3-triazole is a class of nitrogen-containing five-membered heterocyclic compounds. Its physical and chemical properties are particularly interesting and have important applications in many fields.
    Let's talk about its physical properties first. 1H-1,2,3-triazole is mostly a solid at room temperature, with a certain melting point and boiling point. Its solubility is quite special, slightly soluble in water, but it has good solubility in organic solvents such as ethanol and dichloromethane. This solubility makes it easy to select suitable solvents for reaction and separation during organic synthesis operations.
    As for chemical properties, 1H-1,2,3-triazole is extremely active. In its molecular structure, nitrogen atoms are rich in lone pairs of electrons, so they are alkaline and can react with acids to form corresponding salts. And its ring system has a conjugated structure, and the distribution of electron clouds is relatively special, which makes it able to participate in many types of chemical reactions. For example, in the field of organic synthesis, 1H-1,2,3-triazole is often used as an important synthetic block to construct complex organic molecular structures by reacting with various nucleophiles and electrophilic reagents. Particularly outstanding is that it can participate in the famous click chemistry reaction. Such reactions have mild conditions, high yield and good selectivity, and are widely used in pharmaceutical chemistry, materials science and other fields. In drug development, the introduction of 1H-1,2,3-triazole into the molecular structure of drugs through click chemistry can significantly change the physicochemical properties and biological activities of drugs, and improve the efficacy and stability of drugs. In terms of materials science, the introduction of 1H-1,2,3-triazole can endow materials with special functions, such as improving the mechanical properties, thermal stability and recognition ability of specific substances. In short, 1H-1,2,3-triazole has become an indispensable and important part of modern chemical research and application due to its unique physicochemical properties.
    What are the applications of 1H-1,2,3-triazole in materials science?
    1H-1,2,3-triazole is widely used in materials science. First, it can be used as a building block to form a polymer material. This molecule has a special structure and reactivity, and can react with other monomers to polymerize into a polymer with unique properties. It can be introduced into the main chain or side chain of the polymer to give the polymer new properties, such as improving thermal stability and chemical stability. For example, click chemistry with monomers containing double bonds can quickly obtain polymers with regular structures. In the fields of aerospace and other fields, where material properties are strictly required, it has great uses.
    Furthermore, it also plays a key role in the preparation of porous materials. Using 1H-1,2,3-triazole as a linker, it can be assembled with metal ions or organic ligands to form metal-organic framework (MOF) or covalent organic framework (COF) materials. Such porous materials have high specific surface area and regular pore structure, which show good results in gas adsorption and separation, catalysis, etc. For example, when used to separate mixed gases, they selectively adsorb specific gases according to the size and shape of molecules to achieve efficient separation.
    In addition, it makes extraordinary contributions to the modification of functional materials. It can graft on the surface of materials by chemical reaction to change their surface properties. In biomedical materials, modification can improve the biocompatibility of materials and reduce immune reactions. Or in the sensor material, by introducing 1H-1,2,3-triazole, it has the ability to selectively identify specific substances, keenly perceive changes in the target in the environment, and convert it into measurable signals for the detection of pollutants, biomarkers, etc.