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4-(5-Chloro-2H-Benzotriazol-2Yl)-1,3-Benzenediol
Linshang Chemical
|
HS Code |
471300 |
| Chemical Formula | C12H8ClN3O2 |
| Molecular Weight | 261.66 |
| Appearance | Typically a solid |
| Physical State At Room Temperature | Solid |
| Solubility In Water | Low solubility |
| Solubility In Organic Solvents | Soluble in some organic solvents like ethanol, acetone |
| Melting Point | Specific melting point data would require experimental determination |
| Boiling Point | Requires experimental determination |
| Density | Data from experimental measurement |
| Stability | Stable under normal conditions but may react with strong oxidizing agents |
| Odor | Odorless or very faint odor |
| Color | May be white to off - white |
As an accredited 4-(5-Chloro-2H-Benzotriazol-2Yl)-1,3-Benzenediol factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 1 kg of 4-(5 - chloro - 2H - benzotriazol - 2yl)-1,3 - benzenediol in sealed chemical - grade bags. |
| Storage | Store 4-(5 - chloro - 2H - benzotriazol - 2yl)-1,3 - benzenediol in a cool, dry place, away from direct sunlight. Keep it in a tightly sealed container to prevent moisture absorption and exposure to air, which could potentially lead to chemical degradation. Avoid storing near sources of heat or incompatible substances. |
| Shipping | The chemical 4-(5 - chloro - 2H - benzotriazol - 2yl)-1,3 - benzenediol is shipped in sealed, corrosion - resistant containers. Shipment follows strict hazardous material regulations, ensuring proper handling and transportation to prevent any risks. |
Competitive 4-(5-Chloro-2H-Benzotriazol-2Yl)-1,3-Benzenediol prices that fit your budget—flexible terms and customized quotes for every order.
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What is the chemical structure of 4- (5-chloro-2h-benzotriazol-2yl) -1,3-benzenediol?
4- (5-chloro-2H-benzotriazole-2-yl) -1,3-catechol, this is an organic compound. To clarify its chemical structure, it is necessary to look at its naming rules. According to the organic chemical nomenclature, it can be analyzed as follows:
"1,3-catechol" indicates that the compound is based on the phenyl ring, and the 1 and 3 positions of the phenyl ring are each connected to a hydroxy (-OH), which is the parent nuclear structure. And "4- (5-chloro-2H-benzotriazole-2-yl) " indicates that there is a 5-chloro-2H-benzotriazole-2-yl substituent attached to the 4th position of the benzophenol phenyl ring.
"2H-benzotriazole" structure is formed by fusing a benzene ring with a triazole ring, and the second position of the triazole ring participates in the fusing. "5-chloro" means that the 5th position of the benzotriazole ring is connected with a chlorine atom (-Cl). This substituent is connected to the fourth position of the phenyl ring of catechol through 2 positions.
In summary, the structure of 4- (5-chloro-2H-benzotriazole-2-yl) -1,3-catechol is composed of the phenyl ring of catechol and the 5-chloro-2H-benzotriazole-2-yl substituent connected at 4 positions, and the hydroxyl and chlorine atoms are distributed on the corresponding ring according to specific positions. Its chemical structure is complex and delicate, and its parts are related to each other, which has an important impact on the physical, chemical properties and reactivity of the compound.
"1,3-catechol" indicates that the compound is based on the phenyl ring, and the 1 and 3 positions of the phenyl ring are each connected to a hydroxy (-OH), which is the parent nuclear structure. And "4- (5-chloro-2H-benzotriazole-2-yl) " indicates that there is a 5-chloro-2H-benzotriazole-2-yl substituent attached to the 4th position of the benzophenol phenyl ring.
"2H-benzotriazole" structure is formed by fusing a benzene ring with a triazole ring, and the second position of the triazole ring participates in the fusing. "5-chloro" means that the 5th position of the benzotriazole ring is connected with a chlorine atom (-Cl). This substituent is connected to the fourth position of the phenyl ring of catechol through 2 positions.
In summary, the structure of 4- (5-chloro-2H-benzotriazole-2-yl) -1,3-catechol is composed of the phenyl ring of catechol and the 5-chloro-2H-benzotriazole-2-yl substituent connected at 4 positions, and the hydroxyl and chlorine atoms are distributed on the corresponding ring according to specific positions. Its chemical structure is complex and delicate, and its parts are related to each other, which has an important impact on the physical, chemical properties and reactivity of the compound.
What are the main uses of 4- (5-chloro-2h-benzotriazol-2yl) -1,3-benzenediol?
4- (5-chloro-2H-benzotriazole-2-yl) -1,3-phenylglycol has a wide range of uses. This compound is a crucial ingredient in the field of sunscreen. Because of its excellent UV absorption properties, it can effectively protect the skin from UV damage, so it is often used in the preparation of various sunscreen products, such as sunscreen, sunscreen lotion, etc., which can build a solid protective barrier for the skin, so that the skin can be well cared for in the sun.
In the field of plastics, coatings and other industrial materials, 4- (5-chloro-2H-benzotriazole-2-based) -1,3-phenylene glycol also plays an indispensable role. It can be added to the material as a light stabilizer to significantly improve the light resistance of the material, delay the aging and fading of the material caused by light, thereby prolonging the service life of the material, improving the quality and stability of the product, so that plastic products and coatings can maintain good performance and appearance in outdoor environments for a long time.
Furthermore, in some special optical materials, the compound has also been applied to some extent due to its unique optical properties. It can perform specific absorption and conversion of light, endow optical materials with special optical functions, and help related optical products achieve better optical effects and meet specific optical needs. In short, 4- (5-chloro-2H-benzotriazole-2-yl) -1,3-phenylene glycol has shown important value and use in many fields.
In the field of plastics, coatings and other industrial materials, 4- (5-chloro-2H-benzotriazole-2-based) -1,3-phenylene glycol also plays an indispensable role. It can be added to the material as a light stabilizer to significantly improve the light resistance of the material, delay the aging and fading of the material caused by light, thereby prolonging the service life of the material, improving the quality and stability of the product, so that plastic products and coatings can maintain good performance and appearance in outdoor environments for a long time.
Furthermore, in some special optical materials, the compound has also been applied to some extent due to its unique optical properties. It can perform specific absorption and conversion of light, endow optical materials with special optical functions, and help related optical products achieve better optical effects and meet specific optical needs. In short, 4- (5-chloro-2H-benzotriazole-2-yl) -1,3-phenylene glycol has shown important value and use in many fields.
What are the physical properties of 4- (5-chloro-2h-benzotriazol-2yl) -1,3-benzenediol?
4- (5-chloro-2H-benzotriazole-2-yl) -1,3-catechol, which is an organic compound. Its physical properties are as follows:
Looking at its properties, it is mostly white to light yellow powder under normal conditions, which is easy to identify and operate. Regarding the melting point, it is between 150-160 ° C. The melting point characteristic is quite useful for identification and purity determination. And it has a certain solubility, slightly soluble in water, but relatively higher solubility in organic solvents such as ethanol and acetone. This difference in solubility is of great significance in separation, purification and application scenarios.
In addition, this compound is quite sensitive to light, and under light, it may cause structural changes and even chemical reactions. This photosensitivity is both a characteristic and a matter of caution in application fields such as light stabilizers. Because its structure contains benzotriazole and catechol structural units, it is endowed with a unique electron cloud distribution and chemical activity, which in turn affects its physical properties, such as intermolecular forces, causing it to exhibit the above characteristics of melting point and solubility.
Looking at its properties, it is mostly white to light yellow powder under normal conditions, which is easy to identify and operate. Regarding the melting point, it is between 150-160 ° C. The melting point characteristic is quite useful for identification and purity determination. And it has a certain solubility, slightly soluble in water, but relatively higher solubility in organic solvents such as ethanol and acetone. This difference in solubility is of great significance in separation, purification and application scenarios.
In addition, this compound is quite sensitive to light, and under light, it may cause structural changes and even chemical reactions. This photosensitivity is both a characteristic and a matter of caution in application fields such as light stabilizers. Because its structure contains benzotriazole and catechol structural units, it is endowed with a unique electron cloud distribution and chemical activity, which in turn affects its physical properties, such as intermolecular forces, causing it to exhibit the above characteristics of melting point and solubility.
What are the synthesis methods of 4- (5-chloro-2h-benzotriazol-2yl) -1,3-benzenediol?
To prepare 4- (5-chloro-2H-benzotriazole-2-yl) -1,3-catechol, there are many methods, and each has its own advantages and disadvantages, which need to be selected according to the actual situation.
First, catechol and 5-chloro-2-nitrophenylhydrazine are used as starting materials, and are obtained through two steps of condensation and cyclization. First, catechol and 5-chloro-2-nitrophenylhydrazine are condensed in a suitable solvent, such as N, N-dimethylformamide, under the catalysis of bases, such as potassium carbonate, to obtain intermediates. The intermediate is cyclized under the action of acid, such as hydrochloric acid. This process requires temperature control, and the amount of solvent and catalyst is exquisite, otherwise the yield and purity will be affected.
Second, resorcinol is used as the starting material, and the phenolic hydroxyl group is first protected by acylation, and then coupled with 5-chloro-2-halobenzotriazole under base catalysis, and finally the protective group is deprotected. Acylation is commonly used in acetic anhydride and pyridine systems; when coupling, the base can be selected from sodium carbonate, etc.; deprotection is based on the type of acyl group, such as hydrolysis under acidic or basic conditions. There are many steps in this route, but the reaction of each step is easier to control, and the product purity is good.
Third, 3-amino-4-chlorobenzoic acid is used as the starting material, through diazotization, coupling with resorcinol, cyclization and other steps. Diazotization requires low temperature, sodium nitrite and hydrochloric acid are used; the coupling and cyclization process conditions also need fine regulation, which requires high reaction equipment and operation, but if well controlled, the yield is considerable.
In short, all synthesis methods have their own strengths and weaknesses. The first step is simple, but the conditions are strict; although the second method has many steps, the product quality is good; the three methods have high requirements for operation and excellent yield. In actual synthesis, according to factors such as the availability of raw materials, cost, equipment conditions, and product requirements, the best method is carefully selected to achieve the purpose of efficient and high-quality synthesis.
First, catechol and 5-chloro-2-nitrophenylhydrazine are used as starting materials, and are obtained through two steps of condensation and cyclization. First, catechol and 5-chloro-2-nitrophenylhydrazine are condensed in a suitable solvent, such as N, N-dimethylformamide, under the catalysis of bases, such as potassium carbonate, to obtain intermediates. The intermediate is cyclized under the action of acid, such as hydrochloric acid. This process requires temperature control, and the amount of solvent and catalyst is exquisite, otherwise the yield and purity will be affected.
Second, resorcinol is used as the starting material, and the phenolic hydroxyl group is first protected by acylation, and then coupled with 5-chloro-2-halobenzotriazole under base catalysis, and finally the protective group is deprotected. Acylation is commonly used in acetic anhydride and pyridine systems; when coupling, the base can be selected from sodium carbonate, etc.; deprotection is based on the type of acyl group, such as hydrolysis under acidic or basic conditions. There are many steps in this route, but the reaction of each step is easier to control, and the product purity is good.
Third, 3-amino-4-chlorobenzoic acid is used as the starting material, through diazotization, coupling with resorcinol, cyclization and other steps. Diazotization requires low temperature, sodium nitrite and hydrochloric acid are used; the coupling and cyclization process conditions also need fine regulation, which requires high reaction equipment and operation, but if well controlled, the yield is considerable.
In short, all synthesis methods have their own strengths and weaknesses. The first step is simple, but the conditions are strict; although the second method has many steps, the product quality is good; the three methods have high requirements for operation and excellent yield. In actual synthesis, according to factors such as the availability of raw materials, cost, equipment conditions, and product requirements, the best method is carefully selected to achieve the purpose of efficient and high-quality synthesis.
What are the precautions for 4- (5-chloro-2h-benzotriazol-2yl) -1,3-benzenediol during use?
4- (5-chloro-2H-benzotriazole-2-yl) -1,3-catechol. When using this product, there are a number of urgent precautions, which should be paid attention to in detail.
First, safety is the top priority. This product may be toxic and irritating. When operating, appropriate protective equipment must be worn, such as gloves, goggles, protective clothing, etc., to prevent it from coming into contact with the skin and eyes. If it is accidentally touched, rinse with plenty of water immediately and seek medical attention as appropriate. Use in a well-ventilated place to prevent its volatile aerosols from being inhaled by the human body. If it is uncomfortable to inhale, quickly move to a place with fresh air and seek medical treatment if necessary.
Second, storage also needs to be cautious. It should be stored in a cool, dry and well-ventilated place, away from fire and heat sources, to prevent it from changing its properties due to changes in temperature and humidity. And it needs to be stored separately from oxidants and acids, and must not be mixed. Due to its chemical properties, it can be mixed or cause dangerous chemical reactions.
Third, precise control of dosage and conditions during use is crucial. According to specific uses and reaction requirements, accurate dosage should be taken. Excessive or adverse consequences may affect the reaction process or have negative effects in subsequent applications. The temperature, time, pH and other conditions of the reaction also need to be strictly controlled to ensure that it plays its intended effect.
Fourth, waste disposal should not be ignored. After use, the residue and related waste should not be discarded at will, and should be properly disposed of in accordance with local environmental regulations and chemical waste disposal guidelines to prevent environmental pollution.
In short, when using 4- (5-chloro-2H-benzotriazole-2-yl) -1,3-catechol, all details need to be paid attention to, so as to ensure safety, achieve results, and do not damage the environment.
First, safety is the top priority. This product may be toxic and irritating. When operating, appropriate protective equipment must be worn, such as gloves, goggles, protective clothing, etc., to prevent it from coming into contact with the skin and eyes. If it is accidentally touched, rinse with plenty of water immediately and seek medical attention as appropriate. Use in a well-ventilated place to prevent its volatile aerosols from being inhaled by the human body. If it is uncomfortable to inhale, quickly move to a place with fresh air and seek medical treatment if necessary.
Second, storage also needs to be cautious. It should be stored in a cool, dry and well-ventilated place, away from fire and heat sources, to prevent it from changing its properties due to changes in temperature and humidity. And it needs to be stored separately from oxidants and acids, and must not be mixed. Due to its chemical properties, it can be mixed or cause dangerous chemical reactions.
Third, precise control of dosage and conditions during use is crucial. According to specific uses and reaction requirements, accurate dosage should be taken. Excessive or adverse consequences may affect the reaction process or have negative effects in subsequent applications. The temperature, time, pH and other conditions of the reaction also need to be strictly controlled to ensure that it plays its intended effect.
Fourth, waste disposal should not be ignored. After use, the residue and related waste should not be discarded at will, and should be properly disposed of in accordance with local environmental regulations and chemical waste disposal guidelines to prevent environmental pollution.
In short, when using 4- (5-chloro-2H-benzotriazole-2-yl) -1,3-catechol, all details need to be paid attention to, so as to ensure safety, achieve results, and do not damage the environment.
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