Products

4-Amino-3-Methylbenzenesulfonic Acid

Lingxian Chemical

Specifications

HS Code

109730

Chemical Formula C7H9NO3S
Molar Mass 187.216 g/mol
Appearance Solid
Solubility In Water Soluble
Packing & Storage
Packing 25 - kg bags packaging for 4 - Amino - 3 - Methylbenzenesulfonic Acid.
Storage 4 - Amino - 3 - Methylbenzenesulfonic Acid should be stored in a cool, dry, well - ventilated area. Keep it away from heat sources, flames, and oxidizing agents. Store in a tightly closed container to prevent moisture absorption and contamination. Separate from incompatible substances to avoid potential chemical reactions. Ensure proper labeling for easy identification and safety.
Shipping 4 - Amino - 3 - Methylbenzenesulfonic Acid is shipped in well - sealed, corrosion - resistant containers. Shipment follows strict chemical transport regulations, ensuring safe handling during transit to prevent spills and environmental risks.
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4-Amino-3-Methylbenzenesulfonic Acid
General Information
Historical Development
4-Amino-3-methylbenzenesulfonic acid, the rise of this substance, originated from the evolution of chemical industry. In the past, organic synthesis was not yet prosperous, and such compounds were little known. However, with the advance of science and technology, chemists have deepened their research and gained better insight into the mechanism of organic reactions, so they have obtained a method of synthesis.
At the beginning, the synthesis was difficult, the yield was low, and the quality was also poor. After repeated experiments by countless craftsmen, improved processes, and optimized processes, the yield rose and the quality was excellent. This compound has gradually shown its ability in dyes, medicine, and other fields, and its use is becoming more and more widespread. From this perspective, its historical evolution depends on scientific exploration and technological innovation, which has led to today's prosperity.
Product Overview
4-Amino-3-methylbenzenesulfonic acid is also an organic compound. Its color may be white to beige powder, with specific physical and chemical properties. This product has a wide range of uses in the chemical industry, and can be used as a dye intermediate. It is converted by a specific process and contributes to the color fastness and color of colorful dyes. During the synthesis reaction, it is necessary to precisely control the temperature, pH and other conditions to obtain high-purity products. The preparation process is complicated and requires meticulous operation to ensure the quality of the product. Its stability is also a key consideration. It can be stored for a long time in a suitable environment without significant attenuation of performance. It is an indispensable and important raw material in chemical synthesis.
Physical & Chemical Properties
4-Amino-3-methylbenzenesulfonic acid, its physical and chemical properties are crucial. The appearance of this substance is often in the shape of a white crystalline powder, which is quite stable at room temperature and pressure. Its melting point also has a fixed number, which is about a specific temperature range, which is an important indicator for identification.
In terms of solubility, it has a certain solubility in water, which can vary according to factors such as temperature. Chemically, it can participate in many reactions due to the presence of amino groups and sulfonic acid groups. Amino groups are alkaline and can form salts with acids; sulfonic acid groups are significantly acidic and can be neutralized with bases. It can also participate in substitution, condensation and other reactions under specific conditions, and has a wide range of uses in the field of organic synthesis. Such various physical and chemical properties lay the foundation for its application and related research.
Technical Specifications & Labeling
Technical Specifications and Labeling of 4-Amino-3-methylbenzenesulfonic Acid (Product Parameters)
Fu 4-Amino-3-methylbenzenesulfonic Acid is an important chemical. Its technical specifications are related to the selection of raw materials, and pure and high-quality materials must be selected to ensure product purity. The reaction conditions are also critical. The temperature should be controlled in a certain range and the pressure should be moderate to make the reaction sufficient and stable.
In terms of labeling, in the prominent part of the package, the trade name "4-Amino-3-methylbenzenesulfonic acid" should be stated, and the molecular formula, molecular weight and other parameters should be listed in detail. Indicate the purity standard, if not lower than a certain value The storage conditions should also be marked, and it should be placed in a dry and cool place to prevent sun exposure and moisture to ensure stable product quality and enable users to properly apply this product according to specifications and labels.
Preparation Method
The method of making 4 - Amino - 3 - Methylbenzenesulfonic Acid is related to the raw materials and production process, reaction steps and catalytic mechanism. First, take an appropriate amount of o-toluidine as raw material, put it in a reactor, add sulfuric acid and mix it. Heat up to a specific temperature to fully react the two. This step requires precise temperature control to avoid side reactions. After the reaction is completed, cool down, pour the reaction liquid into ice water, and precipitate crystals. Then the crude product is obtained by filtration.
The crude product is purified by recrystallization, dissolved with an appropriate amount of organic solvent, heated to help dissolve, filtered while hot to remove impurities, the filtrate is cooled to crystallize, filtered and dried again to obtain pure 4 - Amino - 3 - Methylbenzenesulfonic Acid. In the whole process, the catalytic mechanism uses sulfuric acid as a catalyst to promote the reaction between o-toluidine and sulfuric acid, and efficiently obtains the target product. Each step is strictly operated to ensure product quality.
Chemical Reactions & Modifications
4-Amino-3-methylbenzenesulfonic acid, the chemical reaction and modification of this compound are related to the needs of our chemical research. In the reaction, or due to the choice of reagents and the setting of conditions, the products vary. In the past, various experts have studied the reaction temperature, duration, and solvent factors.
To achieve optimum effect, it is often necessary to adjust the reaction conditions. Raising the temperature may promote the reaction rate, or it may cause side reactions to occur; the control of duration is related to the purity and yield of the product. The properties of the solvent have an impact on the solubility of the reactants and the reaction mechanism.
As for modification, new groups can be introduced to change its physicochemical properties. Or increase its water-soluble ability, or change its reactivity. This is the field of constant thinking and exploration for our chemical researchers, hoping to expand its new path and achieve perfection in the application of 4-amino-3-methylbenzenesulfonic acid.
Synonyms & Product Names
4-Amino-3-methylbenzenesulfonic acid, also known as p-amino-m-toluenesulfonic acid. Although their names are different, they are actually the same.
Looking at the field of chemical industry, many substances often have aliases to meet different needs. This 4-amino-3-methylbenzenesulfonic acid has its uses in dyes and medicines. Its aliases are set up, either because of traditional appellations, or according to the process.
Although the names are different, their properties remain unchanged. When we study this thing, we should know that it has the same reference, and should not be confused by different names, so that we can explore its true nature. It is beneficial to the research and use of chemical industry. Only in this way can we understand its nature, make good use of it, and contribute to the prosperity of the industry.
Safety & Operational Standards
4-Amino-3-methylbenzenesulfonic acid
Fu 4-amino-3-methylbenzenesulfonic acid is an important chemical substance that is widely used in many fields. However, its safety and operating standards should not be careless.
When storing, choose a cool, dry and well-ventilated place. Keep away from fires and heat sources to prevent accidents. The package must be sealed, not to be damp, and should also be stored in isolation from oxidants, acids, alkalis, etc., and must not be mixed to avoid chemical reactions and endanger safety.
When operating, the operator must be specially trained and strictly abide by the operating procedures. Appropriate protective clothing, protective gloves and goggles are required to prevent contact with the skin and eyes and cause injury. In case of accidental contact, rinse with plenty of water quickly, and send to medical treatment in severe cases.
During use, ensure that the workplace is well ventilated to avoid dust flying. It is strictly forbidden to eat, drink and smoke in the workplace to prevent accidental ingestion or inhalation of harmful substances. In the event of a leak, the contaminated area of the leak should be immediately isolated and personnel should be restricted from entering and leaving. Emergency personnel must wear dust masks and gas suits, and do not let the leak come into contact with open flames and hot topics. Small leaks can be collected in a dry, clean, covered container with a clean shovel; large leaks should be contained by building a dike or digging a pit, transferred to a tank car or a special collector, recycled or transported to a waste treatment site for disposal.
All of these are the safety and operation standards of 4-amino-3-methylbenzenesulfonic acid, and practitioners should observe them carefully to ensure production safety and avoid disasters.
Application Area
4-Amino-3-methylbenzenesulfonic acid is widely used in the field of chemical industry. It is used in the dyeing and weaving industry and can be an important material for dye synthesis. With its unique structure, it can make dyes have better color and fastness, and dye fabrics with bright colors and lasting for a long time.
In the pharmaceutical and chemical industry, it also has its uses. It can be used as an intermediate for drug synthesis, helping many drugs achieve their effects and helping health. This substance is also indispensable in the manufacture of pigments, and can give pigments good performance, and the painted color is gorgeous and lasting. From this perspective, 4-amino-3-methylbenzenesulfonic acid occupies an important position in various industrial fields, and its application prospects are broad, which can contribute to the development of the industry and promote its vigorous progress.
Research & Development
4-Amino-3-methylbenzenesulfonic acid is an important substance in chemical research. At the beginning of my research, I analyzed the molecular structure and investigated its chemical properties in detail. After repeated experiments, different methods were tried to obtain the best synthesis path.
At the beginning, the yield of synthesis was not as I wished, and there were many impurities. However, I was not discouraged, so I consulted the classics, consulted the Fang family, and improved the process. Add new reagents to adjust the temperature and pressure of the reaction. Finally, the yield gradually increased, and the purity also reached a good state.
Looking at the application of this substance, in the dye industry, it can produce dyes with bright color and good fastness; in the field of medicine, or as a key intermediate for the development of new drugs. I believe that over time, through continued research, 4-amino-3-methylbenzenesulfonic acid will be developed in more fields, contributing to the development of the chemical industry and promoting the progress of the industry.
Toxicity Research
Toxicity Study of 4-Amino-3-methylbenzenesulfonic Acid
Fu 4-amino-3-methylbenzenesulfonic Acid, a chemical substance. I am a researcher of chemical products, and I am serious about its toxicity.
The toxicity of this product is related to the safety of living beings. After various experiments, it can be known that it may have potential harm. In vivo, it can cause changes in biochemical reactions. Its molecular structure interacts with various substances in the body, or disturbs the normal metabolism of cells.
Looking at cell experiments, it shows that there are abnormal cell morphology and function. or cause damage to cell membranes and disorder of material transportation. And in animal experiments, observe its effect on the organs. If you touch this product for a long time, the organs may be diseased, and the function is also affected by it.
The obvious toxicity depends on the dose and contact time. When appropriate, the body may be able to control it. Therefore, those who use this product should be cautious and take precautions to protect the health of the soul and the tranquility of the environment.
Future Prospects
Today, 4 - Amino - 3 - Methylbenzenesulfonic Acid has great potential in the field of chemical industry. Although the current application may be limited, the future development can be looked forward to.
This material has a unique structure and stable properties, and can be a key raw material for many chemical reactions. In the way of medical research and development, it may help create novel drugs, cure various diseases, and save people from diseases. In the way of materials science, it may give birth to new functional materials to meet the needs of high-end technologies in the future, such as electronic equipment, aerospace and other fields, so that the performance of devices can be improved and technology can take off.
And with the development of science and technology, the power of research and development is gradually strengthening, and it will be able to explore more wonderful uses. In the future, it may become a treasure of the chemical industry, seeking far-reaching benefits for the economy and human well-being. Its future scene is like the rising sun, the brilliance is gradually prosperous, and the future is promising.
Frequently Asked Questions
What are the main uses of 4-Amino-3-Methylbenzenesulfonic Acid?
4-Amino-3-methylbenzenesulfonic acid, this substance has a wide range of uses. In the dye industry, it is a key intermediate. It can be converted into many dyes with bright colors and good fastness through specific chemical reactions. By ingeniously combining with other compounds, dyes suitable for dyeing fabrics, leather and other materials can be prepared, making the dyeing effect bright and lasting.
In the field of medicine, it also has important uses. As a raw material for synthesizing some drugs, it has significant therapeutic effect on some diseases. Because of its specific chemical structure, it can participate in the construction of drug molecules, endowing drugs with unique pharmacological activities and protecting human health.
Furthermore, in the field of organic synthesis, 4-amino-3-methylbenzenesulfonic acid is often used as an organic synthesis reagent. With its own chemical properties, it can promote the smooth progress of many organic reactions, assist in the synthesis of various organic compounds with complex structures and unique functions, and provide important support for the research of organic chemistry and the development of related industries.
What are the physical properties of 4-Amino-3-Methylbenzenesulfonic Acid?
4-Amino-3-methylbenzenesulfonic acid, its physical properties are particularly important, and it is related to many practical uses. This substance is mostly solid at room temperature, or in powder form, with fine texture, and its color state is often close to white, even slightly yellowish, pure color, and slightly shiny under light.
As far as its melting point is concerned, it is finely determined to be in a specific temperature range. This characteristic is one of the key indicators for identifying the substance and an important threshold for its thermal transition state. And its solubility varies in different solvents. In water, it has a certain solubility, although it is not completely instant, but after moderate stirring and heating, it can gradually dissolve into it to form a uniform solution; while in organic solvents such as ethanol and ether, its solubility varies depending on the nature of the solvent. The degree of solubility in ethanol is better than that in ether, due to the intermolecular force and polarity matching.
Its density is also inherent. After rigorous measurement, the exact value can be obtained, reflecting the mass of its unit volume. This is of practical value in material calculation and process design. In addition, the stability of the substance cannot be ignored. Under normal environmental conditions, its chemical properties are relatively stable, and it is not easy to react violently with common substances. In case of extreme chemical environments such as strong acids and alkalis, there may be chemical reactions. Therefore, when storing and using, it is necessary to pay attention to environmental factors to ensure the constancy of its physical properties and avoid the risk of deterioration, so as to maximize its function and play an effective role in chemical, pharmaceutical and other fields.
What are the chemical properties of 4-Amino-3-Methylbenzenesulfonic Acid?
4-Amino-3-methylbenzenesulfonic acid, this substance is acidic, because it contains a sulfonic acid group, which can ionize hydrogen ions in water, so it can neutralize with alkali substances, such as reacting with sodium hydroxide to generate corresponding salts and water.
Its amino properties are active and can participate in a variety of reactions. It can acylate with acid chloride, acid anhydride, etc., and introduce acyl groups on the amino group to form amide compounds. At the same time, amino groups can also condensate with carbonyl compounds such as aldides and ketones to form nitrogen-containing heterocycles or imines.
From the perspective of redox, the substance is relatively stable, but under the action of strong oxidants, its amino group, methyl group or sulfonic acid group may be oxidized and undergo structural changes.
Due to the benzene ring structure in the molecule, it has certain aromaticity and can undergo electrophilic substitution reaction. The methyl group on the benzene ring is an ortho-para-site group, and the amino group is also an ortho-para-site group. Under the combined influence of the two, the electrophilic reagents are more likely to attack the ortho and para-sites of the benzene ring, such as halogenation, nitrification, sulfonation and other electrophilic substitution reactions.
Under specific conditions, the sulfonic acid group can be replaced by other groups to achieve further modification and transformation of In conclusion, 4-amino-3-methylbenzenesulfonic acid exhibits rich chemical properties and reactivity by virtue of its own structure containing a variety of active groups, and has important applications in organic synthesis and other fields.
What is the preparation method of 4-Amino-3-Methylbenzenesulfonic Acid?
For 4-amino-3-methylbenzenesulfonic acid, the preparation method is particularly important. The method is as follows:
First take an appropriate amount of 3-methylaniline, which is the base material for preparation. Place it in a reactor and add an appropriate amount of sulfuric acid. Sulfuric acid is not only a reactant in this reaction, but also a reaction medium. During the reaction, pay attention to the control of temperature. At the beginning, slowly raise the temperature to a certain extent, so that the two have a preliminary effect.
When the temperature rises to about [X] ° C, the reaction gradually becomes active. At this time, it is necessary to closely monitor the reaction situation, cover the slight change in temperature, or the difference in the reaction product. Keep stirring to promote the full mixing of materials and make the reaction uniform.
As the reaction progresses, the amino group of 3-methylaniline interacts with the sulfonic acid group of sulfuric acid gradually to produce 4-amino-3-methylbenzenesulfonic acid. After the reaction is completed, the reaction solution is cooled. After cooling, the crystallization of the product can be obtained.
Next, the crystallization is washed with an appropriate solvent, such as ethanol and water. The purpose of washing is to remove impurities and make the product purer. After several washes, place the product in an oven and dry at a suitable temperature. The drying temperature should not be too high to avoid product decomposition. The final product is pure 4-amino-3-methylbenzenesulfonic acid.
When preparing, be sure to follow the operating procedures, pay attention to safety, and provide comprehensive protection to ensure the smooth reaction and the well-being of the operator.
4-Amino-3-Methylbenzenesulfonic Acid in storage and transportation
4-Amino-3-methylbenzenesulfonic acid, when storing and transporting, pay attention to many matters.
Its nature is more active, and when storing, the first environment is dry. If it is in a humid place, it is prone to moisture and deterioration, which will damage its quality. In the warehouse, the air should circulate smoothly to prevent the accumulation of harmful gases and endanger the safety of this product. And the temperature should be moderate, not too high. High temperature can easily cause chemical reactions or decomposition, so it should be stored in a cool place.
Furthermore, this product should be stored separately from oxidants, acids, bases, etc. Due to its chemical properties, if it is mixed with them, it is easy to have a violent reaction or risk of explosion in case of incentives, so it should not be careless.
As for transportation, the packaging must be solid and firm. It must be ensured that during transportation, the packaging will not be damaged due to bumps and collisions, causing the items to leak. The transportation vehicle should also be clean and there is no residue that can react with it. And the transportation personnel must be familiar with the characteristics of this object and the emergency treatment method. In case of leakage, it can be disposed of quickly and properly. When transporting, it should also avoid open flames and high temperature places to ensure safety. In this way, 4-amino-3-methylbenzenesulfonic acid is safe and secure during storage and transportation.