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4-Chloro-5-Methyl-2-Aminobenzene Sulfonic Acid
Linshang Chemical
|
HS Code |
981725 |
| Chemical Formula | C7H8ClNO3S |
| Molecular Weight | 221.66 |
| Appearance | Solid (usually white or off - white powder) |
| Odor | Typically odorless |
| Melting Point | Data depends on purity, generally in a certain range |
| Solubility In Water | Moderately soluble |
| Solubility In Organic Solvents | Poor solubility in non - polar solvents, better in some polar solvents |
| Acidity | Weakly acidic due to the sulfonic acid group |
| Stability | Stable under normal conditions, but may react with strong oxidants |
| Reactivity | Can participate in substitution reactions due to the amino and sulfonic acid groups |
As an accredited 4-Chloro-5-Methyl-2-Aminobenzene Sulfonic Acid factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 500g of 4 - chloro - 5 - methyl - 2 - aminobenzene Sulfonic Acid packaged in sealed plastic bags. |
| Storage | 4 - chloro - 5 - methyl - 2 - aminobenzene sulfonic acid should be stored in a cool, dry, well - ventilated area. Keep it away from heat sources, ignition sources, and incompatible substances such as strong oxidizing agents. Store in a tightly sealed container to prevent moisture absorption and contamination, ensuring its stability during storage. |
| Shipping | 4 - chloro - 5 - methyl - 2 - aminobenzene Sulfonic Acid should be shipped in well - sealed, corrosion - resistant containers. It must comply with hazardous chemical shipping regulations, ensuring proper labeling and handling to prevent spills and environmental risks. |
Competitive 4-Chloro-5-Methyl-2-Aminobenzene Sulfonic Acid prices that fit your budget—flexible terms and customized quotes for every order.
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4-chloro-5-methyl-2-aminobenzene chemical structure of sulfonic acid
The chemical structure of 4-chloro-5-methyl-2-aminobenzenesulfonic acid is as follows:
The parent of this compound is the benzene ring, which is a six-membered carbon ring and has a unique conjugated structure, giving it a certain stability.
is above the benzene ring, and the chlorine atom is connected at the 4th position. The chlorine atom is a halogen element with strong electronegativity, which will affect the electron cloud distribution of the benzene ring. Due to its electron-absorbing effect, the electron cloud density of the benzene ring decreases, especially the electron cloud density of the ortho and para-position decreases more significantly. This property has a great influence on the chemical activity and reaction check point of the compound. There is a methyl group at the 5th position
. Methyl as the power supply group will provide electrons to the benzene ring, increasing the electron cloud density of the benzene ring, especially increasing the electron cloud density of the ortho and para-site. In contrast to the chlorine atom, the two work together to make the electron cloud distribution of the benzene ring more complex.
2 position is an amino group. The nitrogen atom in the amino group contains lone pair electrons, which can form p-π conjugate with the benzene ring, which greatly enhances the electron cloud density of the benzene ring, and the effect of improving the electron cloud density of the ortho and para-site is obvious. This makes the amino o and para-sites of the benzene ring more vulnerable to attack by electrophilic reagents in the electrophilic substitution reaction.
Sulfonic acid group ($- SO_ {3} The sulfonic acid group is a strong electron-absorbing group, which has a strong attraction to the benzene ring electron cloud, which significantly reduces the density of the benzene ring electron cloud. At the same time, the sulfonic acid is basically acidic, and the hydroxy hydrogen atoms in the sulfonic acid group are easy to ionize, so that the compound presents certain acidic characteristics.
In summary, in the chemical structure of 4-chloro-5-methyl-2-aminobenzene sulfonic acid, each substituent interacts with each other, which jointly determines its unique physical and chemical properties and chemical reactivity.
The parent of this compound is the benzene ring, which is a six-membered carbon ring and has a unique conjugated structure, giving it a certain stability.
is above the benzene ring, and the chlorine atom is connected at the 4th position. The chlorine atom is a halogen element with strong electronegativity, which will affect the electron cloud distribution of the benzene ring. Due to its electron-absorbing effect, the electron cloud density of the benzene ring decreases, especially the electron cloud density of the ortho and para-position decreases more significantly. This property has a great influence on the chemical activity and reaction check point of the compound. There is a methyl group at the 5th position
. Methyl as the power supply group will provide electrons to the benzene ring, increasing the electron cloud density of the benzene ring, especially increasing the electron cloud density of the ortho and para-site. In contrast to the chlorine atom, the two work together to make the electron cloud distribution of the benzene ring more complex.
2 position is an amino group. The nitrogen atom in the amino group contains lone pair electrons, which can form p-π conjugate with the benzene ring, which greatly enhances the electron cloud density of the benzene ring, and the effect of improving the electron cloud density of the ortho and para-site is obvious. This makes the amino o and para-sites of the benzene ring more vulnerable to attack by electrophilic reagents in the electrophilic substitution reaction.
Sulfonic acid group ($- SO_ {3} The sulfonic acid group is a strong electron-absorbing group, which has a strong attraction to the benzene ring electron cloud, which significantly reduces the density of the benzene ring electron cloud. At the same time, the sulfonic acid is basically acidic, and the hydroxy hydrogen atoms in the sulfonic acid group are easy to ionize, so that the compound presents certain acidic characteristics.
In summary, in the chemical structure of 4-chloro-5-methyl-2-aminobenzene sulfonic acid, each substituent interacts with each other, which jointly determines its unique physical and chemical properties and chemical reactivity.
What are the main uses of 4-chloro-5-methyl-2-aminobenzene Sulfonic Acid?
4-Chloro-5-methyl-2-aminobenzenesulfonic acid has a wide range of uses. In the field of pharmaceutical and chemical industry, it can be used as a key intermediate to help synthesize a variety of specific drugs. Its structural characteristics give it the ability to participate in specific chemical reactions, laying the foundation for the creation of compounds with unique pharmacological activities, such as some new drugs used to treat specific diseases. Through its ingenious reaction with other reagents, through a series of complex processes, the final result is a drug with significant efficacy.
In the dye industry, it also plays an important role. Due to its special chemical structure, it can give dyes a unique color and excellent properties. It can be used as an important raw material for the synthesis of specific color dyes. After careful blending and reaction, dyes with bright colors and good fastness can be obtained. It is widely used in textile printing and dyeing and other industries to make fabrics show rich, diverse and long-lasting bright colors.
In the field of organic synthesis, it is also a commonly used reagent. With its functional groups, it can participate in many organic reactions and realize the construction of complex organic compounds. Chemists can design exquisite synthesis routes according to their reactivity and selectivity to synthesize organic molecules with special structures and functions to meet the needs of different fields for special organic materials.
Furthermore, in the field of materials science, appropriate chemical modification and modification can be used to prepare materials with special properties. For example, compositing with specific polymer materials can improve the electrical, optical or mechanical properties of materials, expand the application range of materials, and show potential application value in electronic devices, optical materials, etc.
In conclusion, 4-chloro-5-methyl-2-aminobenzenesulfonic acid, with its unique chemical structure, plays a key role in many important industrial and scientific research fields, and makes great contributions to promoting technological progress and innovation in various fields.
In the dye industry, it also plays an important role. Due to its special chemical structure, it can give dyes a unique color and excellent properties. It can be used as an important raw material for the synthesis of specific color dyes. After careful blending and reaction, dyes with bright colors and good fastness can be obtained. It is widely used in textile printing and dyeing and other industries to make fabrics show rich, diverse and long-lasting bright colors.
In the field of organic synthesis, it is also a commonly used reagent. With its functional groups, it can participate in many organic reactions and realize the construction of complex organic compounds. Chemists can design exquisite synthesis routes according to their reactivity and selectivity to synthesize organic molecules with special structures and functions to meet the needs of different fields for special organic materials.
Furthermore, in the field of materials science, appropriate chemical modification and modification can be used to prepare materials with special properties. For example, compositing with specific polymer materials can improve the electrical, optical or mechanical properties of materials, expand the application range of materials, and show potential application value in electronic devices, optical materials, etc.
In conclusion, 4-chloro-5-methyl-2-aminobenzenesulfonic acid, with its unique chemical structure, plays a key role in many important industrial and scientific research fields, and makes great contributions to promoting technological progress and innovation in various fields.
What are the physical properties of 4-chloro-5-methyl-2-aminobenzene Sulfonic Acid?
4-Chloro-5-methyl-2-aminobenzenesulfonic acid, this is an organic compound. Looking at its molecular structure, it contains chlorine atoms, methyl groups, amino groups and sulfonic acid groups. These groups give the compound unique physical properties.
First word solubility. The sulfonic acid group is a strong hydrophilic group, so the compound should have a certain solubility in water. However, due to the presence of benzene ring, chlorine atom and methyl group, its solubility may not be excellent. Compared with simple compounds containing only sulfonic acid groups, the solubility of 4-chloro-5-methyl-2-aminobenzenesulfonic acid in organic solvents may be different. The non-polarity of chlorine atoms and methyl groups may slightly increase the solubility of the compound in some organic solvents such as ethanol and acetone.
The second is the melting point and boiling point. Intermolecular forces have a great influence on the melting point and boiling point. Sulfonic acid groups can form hydrogen bonds, increase the intermolecular forces, causing the melting point and boiling point to rise. At the same time, the conjugated structure of benzene rings also enhances the stability of the molecule, further affecting the melting point and boiling point. However, the introduction of chlorine atoms and methyl groups, or the destruction of molecular regularity, has a complex effect on the melting point and boiling point. Overall, the melting point and boiling point of the compound may be within a certain range, and the specific value depends on accurate experimental determination.
Another word on appearance and smell. Usually such organic compounds are mostly solids, the color may vary due to the presence of impurities, and the pure substance may be white to light yellow solid. As for the odor, it is difficult to describe exactly because it contains a variety of groups, or has a special organic compound odor, so it needs to be actually smelled and perceived.
Also known as density. Due to the presence of chlorine atoms, the relative atomic mass is large, and the spatial arrangement of each atom in the molecular structure affects the bulk density, so its density may be larger than that of water, and the specific value needs to be accurately measured by experiments.
In short, the physical properties of 4-chloro-5-methyl-2-aminobenzenesulfonic acid are subject to the synergistic effect of various groups, and many properties need to be accurately determined by experiments.
First word solubility. The sulfonic acid group is a strong hydrophilic group, so the compound should have a certain solubility in water. However, due to the presence of benzene ring, chlorine atom and methyl group, its solubility may not be excellent. Compared with simple compounds containing only sulfonic acid groups, the solubility of 4-chloro-5-methyl-2-aminobenzenesulfonic acid in organic solvents may be different. The non-polarity of chlorine atoms and methyl groups may slightly increase the solubility of the compound in some organic solvents such as ethanol and acetone.
The second is the melting point and boiling point. Intermolecular forces have a great influence on the melting point and boiling point. Sulfonic acid groups can form hydrogen bonds, increase the intermolecular forces, causing the melting point and boiling point to rise. At the same time, the conjugated structure of benzene rings also enhances the stability of the molecule, further affecting the melting point and boiling point. However, the introduction of chlorine atoms and methyl groups, or the destruction of molecular regularity, has a complex effect on the melting point and boiling point. Overall, the melting point and boiling point of the compound may be within a certain range, and the specific value depends on accurate experimental determination.
Another word on appearance and smell. Usually such organic compounds are mostly solids, the color may vary due to the presence of impurities, and the pure substance may be white to light yellow solid. As for the odor, it is difficult to describe exactly because it contains a variety of groups, or has a special organic compound odor, so it needs to be actually smelled and perceived.
Also known as density. Due to the presence of chlorine atoms, the relative atomic mass is large, and the spatial arrangement of each atom in the molecular structure affects the bulk density, so its density may be larger than that of water, and the specific value needs to be accurately measured by experiments.
In short, the physical properties of 4-chloro-5-methyl-2-aminobenzenesulfonic acid are subject to the synergistic effect of various groups, and many properties need to be accurately determined by experiments.
What is the preparation method of 4-chloro-5-methyl-2-aminobenzene Sulfonic Acid?
To prepare 4-chloro-5-methyl-2-aminobenzenesulfonic acid, the following ancient method can be used.
Take 4-chloro-5-methyl-2-nitrobenzene as the starting material, which can be prepared by a series of reactions such as nitrification and halogenation of the corresponding aromatic hydrocarbon. 4-Chloro-5-methyl-2-nitrobenzene is placed in an appropriate reactor, and the system composed of iron powder and hydrochloric acid is used as a reducing agent. The two react to form ferrous ions, and the ferrous ions further reduce the nitro group to an amino group. 4-chloro-5-methyl-2-aminobenzene can be obtained here.
Then, the resulting 4-chloro-5-methyl-2-aminobenzene is co-heated with concentrated sulfuric acid. Concentrated sulfuric acid is used as a sulfonation reagent in this reaction. Under heating conditions, a sulfonation reaction occurs on the benzene ring. The electron cloud density of the benzene ring is related to the substituent, and the amino group is an ortho-para-position locator. Due to factors such as steric hindrance, the sulfonic acid group is mostly introduced into the para-position of the amino group, so 4-chloro-5-methyl-2-aminobenzenesulfonic acid is obtained.
During the reaction process, the reaction temperature and time need to be strictly controlled. If the temperature is too low, the sulfonation reaction rate is slow and the yield is not good; if the temperature is too high, it is easy to produce side reactions, such as excessive sulfonation of the benzene ring or other groups are affected. The reaction time also needs to be precisely controlled. If it is too short, the reaction will not be completed. If it is too long, the energy consumption will increase and the product may decompose. Concentrated sulfuric acid is highly corrosive, iron powder reacts with hydrochloric acid or hydrogen escapes, so open flames should be prevented on site, and protective measures should be taken to prevent accidents. In this way, according to the above steps and precautions, 4-chloro-5-methyl-2-aminobenzenesulfonic acid may be obtained.
Take 4-chloro-5-methyl-2-nitrobenzene as the starting material, which can be prepared by a series of reactions such as nitrification and halogenation of the corresponding aromatic hydrocarbon. 4-Chloro-5-methyl-2-nitrobenzene is placed in an appropriate reactor, and the system composed of iron powder and hydrochloric acid is used as a reducing agent. The two react to form ferrous ions, and the ferrous ions further reduce the nitro group to an amino group. 4-chloro-5-methyl-2-aminobenzene can be obtained here.
Then, the resulting 4-chloro-5-methyl-2-aminobenzene is co-heated with concentrated sulfuric acid. Concentrated sulfuric acid is used as a sulfonation reagent in this reaction. Under heating conditions, a sulfonation reaction occurs on the benzene ring. The electron cloud density of the benzene ring is related to the substituent, and the amino group is an ortho-para-position locator. Due to factors such as steric hindrance, the sulfonic acid group is mostly introduced into the para-position of the amino group, so 4-chloro-5-methyl-2-aminobenzenesulfonic acid is obtained.
During the reaction process, the reaction temperature and time need to be strictly controlled. If the temperature is too low, the sulfonation reaction rate is slow and the yield is not good; if the temperature is too high, it is easy to produce side reactions, such as excessive sulfonation of the benzene ring or other groups are affected. The reaction time also needs to be precisely controlled. If it is too short, the reaction will not be completed. If it is too long, the energy consumption will increase and the product may decompose. Concentrated sulfuric acid is highly corrosive, iron powder reacts with hydrochloric acid or hydrogen escapes, so open flames should be prevented on site, and protective measures should be taken to prevent accidents. In this way, according to the above steps and precautions, 4-chloro-5-methyl-2-aminobenzenesulfonic acid may be obtained.
4-chloro-5-methyl-2-aminobenzene Sulfonic Acid in storage and transportation
4-Chloro-5-methyl-2-aminobenzenesulfonic acid is an organic compound. When storing and transporting, many key things should be carefully paid attention to.
First, it is related to storage. This compound should be stored in a cool, dry and well-ventilated place. Because it is sensitive to humidity and prone to deterioration in a humid environment, it is extremely important to keep it dry. In addition, the substance should be kept away from fires and heat sources to prevent dangerous conditions such as fire or explosion. It should be stored separately from oxidizing agents, acids, bases, etc., and must not be mixed. Chemical reactions may occur due to contact with it, resulting in damaged quality or dangerous products.
Second, it involves transportation. Before transportation, it is necessary to ensure that the packaging is intact to prevent material leakage. During transportation, it is necessary to strictly follow relevant regulations, choose suitable transportation tools, and take necessary protective measures. Avoid severe vibration, impact and friction to avoid packaging damage. At the same time, transportation personnel should be familiar with the characteristics of the substance and emergency treatment methods, and be able to respond quickly and effectively in the event of an accident.
Furthermore, whether it is storage or transportation, clear warning signs should be set up to remind personnel to pay attention to safety. A sound emergency plan should also be formulated, and response strategies should be planned in advance for possible leaks, fires and other accidents, so as to ensure the safety of personnel and the environment from pollution to the greatest extent.
First, it is related to storage. This compound should be stored in a cool, dry and well-ventilated place. Because it is sensitive to humidity and prone to deterioration in a humid environment, it is extremely important to keep it dry. In addition, the substance should be kept away from fires and heat sources to prevent dangerous conditions such as fire or explosion. It should be stored separately from oxidizing agents, acids, bases, etc., and must not be mixed. Chemical reactions may occur due to contact with it, resulting in damaged quality or dangerous products.
Second, it involves transportation. Before transportation, it is necessary to ensure that the packaging is intact to prevent material leakage. During transportation, it is necessary to strictly follow relevant regulations, choose suitable transportation tools, and take necessary protective measures. Avoid severe vibration, impact and friction to avoid packaging damage. At the same time, transportation personnel should be familiar with the characteristics of the substance and emergency treatment methods, and be able to respond quickly and effectively in the event of an accident.
Furthermore, whether it is storage or transportation, clear warning signs should be set up to remind personnel to pay attention to safety. A sound emergency plan should also be formulated, and response strategies should be planned in advance for possible leaks, fires and other accidents, so as to ensure the safety of personnel and the environment from pollution to the greatest extent.
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