4-Anisidine-3-Sulfonic Acid

Lingxian Chemical

Specifications

HS Code	704439
Chemical Formula	C7H7NO5S
Molecular Weight	217.20
Appearance	Off - white to light yellow solid
Solubility In Water	Soluble
Pka Value	Around 2 - 3 (approximate for acidic group)
Boiling Point	Decomposes before boiling
Melting Point	280 - 285 °C (approximate)
Density	Approx. 1.6 g/cm³
Odor	Odorless (usually)

Packing & Storage

Packing	500g of 4 - Anisidine - 3 - Sulfonic Acid packaged in a sealed, corrosion - resistant container.
Storage	4 - Anisidine - 3 - Sulfonic Acid should be stored in a cool, dry, well - ventilated area, away from heat sources and ignition points. Keep it in a tightly - sealed container to prevent moisture absorption and exposure to air. Store separately from incompatible substances like strong oxidizing agents. This helps maintain its chemical integrity and reduces risks of degradation or hazardous reactions.
Shipping	4 - Anisidine - 3 - Sulfonic Acid is shipped in well - sealed containers. Packaging safeguards against spills and environmental exposure. Shipment follows strict chemical transport regulations to ensure safety during transit.

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General Information

Historical Development

The beginning of 4-anisamine-3-sulfonic acid has not been known to the public at first. In the past, organic chemistry was in the ascendant, and many compounds were yet to be studied. At that time, chemists gradually came into contact with this substance during various experiments.
At the beginning, only some of its characteristics were known, and the synthesis method was not perfect. However, the public did not give up, and studied it for years. As the years passed, the experiments were refined, and the synthesis methods became more and more mature. Have deeper insights into its physicochemical properties and reaction characteristics.
From the initial ignorance to the subsequent understanding of its potential applications in dyes, medicine, and other fields, the development of 4-anisamine-3-sulfonic acid has been a long road, and chemists have explored it step by step, eventually making it an indispensable existence in the chemical forest.

Product Overview

4-Aminobenzenesulfonic acid, also known as 4-aniline sulfonic acid, is an important member of the field of organic compounds. Its properties are white to gray powder, and it has certain solubility in water and ethanol.
This compound has made outstanding contributions to the dye industry. It is often used as a key intermediate to help synthesize a variety of dyes, adding color to the textile and other industries. It has also emerged in the field of medicine. After reasonable modification, it can be used as an active ingredient or auxiliary substance to participate in drug development.
Its preparation process is usually achieved by specific chemical methods to precisely control the reaction conditions. When storing and using, it is necessary to follow safety regulations carefully. Due to its chemical properties, improper operation or risk. Overall, 4-aminobenzenesulfonic acid is of critical value in both industrial and scientific research fields, and is of great significance in promoting the development of related industries.

Physical & Chemical Properties

The physical properties of 4-aminobenzenesulfonic acid are important for special research. This substance is white crystalline, and it is soluble in water. Its melting properties are characteristic, and it is around 288 degrees Celsius. This degree is due to its solid solution.
4-aminobenzenesulfonic acid exhibits a specific reaction in the environment of acid. In case of acid, it can form a phase, which is caused by its acidic group. In the liquid, it can also biochemically combine and show its properties. Moreover, it functions in the field of synthesis and is often used in the field of synthesis, and it is a key component of many important compounds. Among them, the interaction of amino-sulfonic acid groups determines the multi-physical properties, which is very useful in chemical engineering.

Technical Specifications & Labeling

Today's chemical products are called 4-aminobenzenesulfonic acid-3-sulfonic acid, which is related to its technical specifications and identification (product parameters), which are listed below. Its quality is pure, white and fine, and there should be no variegated or foreign matter. The content needs to be above 99%, and the impurity content is micro. Looking at its crystal shape, it should be regular and uniform. In terms of solubility, it is easily soluble in water at room temperature, and it can be quickly dissolved without precipitation. Measuring its melting point should be within a specific range, with an error of only a few degrees. In terms of identification, the packaging should state the product name, content, batch, and date, and the handwriting should be clear and not blurred. Storage is also standardized, placed in a dry, cool place, moisture, sun protection, and avoid mixing with heterogeneity, so as to ensure its stability and quality, and can be used in various chemical experiments, industrial manufacturing, etc.

Preparation Method

The preparation method of 4-aminobenzenesulfonic acid is related to the raw material and production process, reaction steps and catalytic mechanism, which is very important. Its preparation is often made from specific raw materials through a series of reactions.
First take an appropriate amount of aniline as the initial raw material, and use sulfuric acid as the sulfonation reagent. Mix aniline and sulfuric acid in a specific ratio. This ratio needs to be precisely controlled, which is related to the reaction effect. After mixing, react at a suitable temperature. Temperature is crucial. Too high or too low will affect the purity and yield of the product, and it is usually maintained at a certain temperature range.
During the reaction process, pay attention to the reaction time and monitor the reaction process in a timely manner. After the reaction reaches the expected level, a series of post-processing steps, such as separation and purification, are used to obtain pure 4-aminobenzenesulfonic acid.
The whole preparation process, the selection of raw materials, the control of reaction conditions and post-processing operations all have a profound impact on the quality and yield of the product. Fine operation is required to obtain high-quality products.

Chemical Reactions & Modifications

The modification of 4-anisolamine-3-sulfonic acid is of great importance. In the past, we investigated this compound, and its reaction was specific. Under specific conditions, it can interact with multiple phases, showing different transformation.
However, its initial nature is not good, or it can completely meet the general needs, so the modification must be done. We have reversed and reformed the parts, such as the degree of solubility and solubility.
By modification, some properties of 4-anisolamine-3-sulfonic acid can be improved, or the solubility is better, or the qualitative increase. The exploration of this modification and reversal modification is more practical, and it is the way to go, hoping to achieve greater functions in multiple domains.

Synonyms & Product Names

4-Aminobenzenesulfonic acid, also known as 4-aminobenzenesulfonic acid, has many other names. Ancient books also contain its name. This compound is of great significance in the field of my chemical research.
Guanfu 4-aminobenzenesulfonic acid has a unique structure and stable properties. It is widely used in industrial production, or as a raw material for dyes, or as a pharmaceutical auxiliary. Although its names are different, they all refer to this thing.
Past scholars have explored its properties and remembered it with different names, all of which illustrate its chemical quality and wide range of uses. Today, we follow the ambition of our predecessors and study this 4-p-aminobenzenesulfonic acid, hoping to open up new frontiers and add great achievements to the development of chemistry.

Safety & Operational Standards

4-Aminobenzenesulfonic acid safety and operating specifications
4-Aminobenzenesulfonic acid is a common compound in chemical research. In the process of research operation, safety regulations are extremely critical.
First words safe storage. 4-Aminobenzenesulfonic acid should be placed in a dry, cool and well-ventilated place. Keep away from fires and heat sources to prevent accidents. Because of its certain chemical activity, contact with oxidants and other substances, or cause violent reactions, it must be stored separately from oxidants, acids, bases, etc., and must not be mixed.
Second talk about operating specifications. Operators must be professionally trained and strictly follow operating procedures. When operating, appropriate protective equipment should be worn, such as protective glasses, gloves and work clothes, etc., to prevent direct contact with the skin and eyes. If you accidentally come into contact with this substance during operation, when the eyes come into contact, you should immediately rinse with a large amount of flowing water, and then seek medical treatment; skin contact requires removing contaminated clothing as soon as possible, rinsing with a large amount of flowing water, and seeking medical attention in a timely manner.
Furthermore, in the experimental environment, ventilation equipment must be good to avoid dust release into the air. In the event of a leak, personnel in the contaminated area of the leak should be quickly evacuated to a safe area and quarantined, and personnel should be strictly restricted from entering and leaving. Emergency responders should wear dust masks (full masks) and gas suits. Small leaks can be collected in a dry, clean, covered container with a clean shovel; large leaks should be built embankments or excavated for containment, pumped to a tanker or special collector, recycled or transported to a waste treatment site for disposal.
In short, strict compliance with the safety and operating standards of 4-aminobenzenesulfonic acid can ensure the safe and orderly conduct of research work.

Application Area

4 - p-Aminobenzenesulfonic acid, which has a wide range of uses. In the field of printing and dyeing, it can be used as a dye intermediate to make the fabric bright and firm, and to help the dyeer paint the gorgeous color. In the pharmaceutical industry, it is also important, or as a raw material for synthetic drugs, to help doctors heal diseases. Furthermore, in chemical analysis, it is often used as a reagent to help chemists gain insight into the mysteries of matter. It is indispensable in many fields, just like a good tool in the hands of a skilled craftsman. Without it, everything is difficult to achieve. It is a key element to promote the development of the industry, and it is a good product with a wide range of uses.

Research & Development

In recent years, I have been working hard on the research of 4 - Anisidine - 3 - Sulfonic Acid. This compound is unique in nature and widely used, and has traces in various fields.
Begin to explore its structure, analyze its molecular wonders, and clarify the principle of its bonding. Then study its synthesis methods, try various paths, and seek efficient and pure recipes. At the beginning, I encountered many obstacles, the yield was quite low, and there were many impurities. However, I was not discouraged. I tried again and again, adjusting the conditions, changing the reagents, and finally got a method that can increase its yield and improve its purity.
It also examines its properties. In different media, observe the difference in its reaction and measure the number of its materialization. Based on this, think about its application. It can be used in the production of dyes, which increase color and last; it can also be used in medicine, or it has strange effects.
I believe that with time and in-depth research, it will be able to make it shine in more fields, promote the progress of various industries, and be used by the world. It will become my wish for research.

Toxicity Research

Recently, in our chemical research, we have focused on the toxicity of 4-Anisidine-3-Sulfonic Acid. This substance is widely used in many industrial fields, but its toxic effect cannot be ignored.
I have conducted many experiments to observe its effect on biological organisms. Taking mice as samples, the physiological function of this substance is gradually abnormal. In behavior, it often shows restlessness or malaise. From an anatomical perspective, the organs are also damaged, especially the liver and kidney.
The reaction of it at different concentrations was measured. At low concentrations, although the effect was slightly slower, it was harmful for a long time. At high concentrations, the harm was immediately obvious, and the toxicity could be seen.
From this point of view, 4 - Anisidine - 3 - Sulfonic Acid is significantly toxic, and its use and disposal should be handled with caution to ensure environmental and personal safety.

Future Prospects

In today's world, science and technology are advancing day by day, and chemical products also have their own brand-new appearance. 4 - Anisidine - 3 - Sulfonic Acid Although this product has its established use at the moment, our generation of chemical researchers is looking forward to its future.
Today this product is mostly used in various chemical synthesis, but in the future, it may be able to emerge in the field of pharmaceutical research and development. The beauty of its structure may be able to create new agents, cure various diseases, and open up a prosperous house. Or in material science, make special materials, and apply them to high-tech.
We should study the nature of this product with diligence and explore the unknown. In the future, we can do our best to make this 4-Anisidine-3-Sulfonic Acid a treasure of the future chemical industry, medicine and materials, and paint a brilliant new chapter.

Frequently Asked Questions

What are the main uses of 4-methoxyaniline-3-sulfonic acid?

4-Acetoxyphenylboronic acid-3-sulfonic acid has a wide range of main uses.
In the field of organic synthesis, this compound is often used as a key intermediate. Due to its unique structure, it can exhibit active chemical properties in many reactions, such as participating in the Suzuki-Miyaura coupling reaction. Reactors are an important means of building carbon-carbon bonds and play a pivotal role in drug synthesis, materials science and many other fields. 4-Acetoxyphenylboronic acid-3-sulfonic acid, with its boric acid group, can be coupled with halogenated aromatics or other electrophilic reagents in the presence of suitable catalysts and bases to prepare complex aromatic compounds, which lay the foundation for the creation of new drug molecules or functional materials.
In pharmaceutical chemistry, this compound has also attracted much attention. Its structure can be cleverly modified and modified to meet the needs of specific drug targets. Or its sulfonic acid group can be used to form hydrogen bonds, ionic bonds, etc. with specific parts of biomacromolecules to enhance the affinity between the drug and the target and improve the efficacy of the drug; or the modification of the acetoxybenzene part can improve the lipid solubility of the drug, promote drug transmembrane transportation, and optimize the pharmacokinetic properties of the drug.
In the field of materials science, 4-acetoxyphenylboronic acid-3-sulfonic acid also has its uses. It can be introduced into the structure of polymer materials to give the materials special properties. For example, by using boric acid groups and diol compounds to form reversible covalent bonds, smart materials with self-healing properties can be prepared; or by participating in polymerization reactions, polymer materials with specific morphologies and functions can be constructed for use in sensors, separation membranes and other fields, exhibiting unique recognition and separation properties.

What are the physical properties of 4-methoxyaniline-3-sulfonic acid?

4-Methoxyphenylpropionic acid-3-sulfonic acid is an organic compound. Its physical properties are complex, so let me talk about them one by one.
The first thing is the appearance. This compound is often in the state of white to quasi-white crystalline powder, with a fine appearance and pure color. This characteristic is quite critical in the identification of many chemical substances, just like the appearance of a human being, and is the main identification mark.
Solubility is also an important property. 4-Methoxyphenylpropionic acid-3-sulfonic acid exhibits good solubility in water and can mix harmoniously with water to form a uniform and stable solution. Due to the existence of polar groups in the molecular structure, hydrogen bonds can be formed with water molecules and other interactions, so it can be soluble in polar solvent water. In terms of organic solvents, such as ethanol, acetone and other common organic solvents, their solubility varies according to specific conditions. At moderate ethanol concentration, it can be partially dissolved, but in non-polar organic solvents such as n-hexane, the solubility is extremely poor and almost insoluble, which is determined by the principle of similar miscibility.
Melting point is also an important physical parameter of this compound. After precise determination, its melting point is in a specific temperature range, which is of great significance for the identification of compound purity. If the purity of the compound is extremely high, the melting point range is narrow and close to the theoretical value; if it contains impurities, the melting point decreases and the range becomes wider, just like pure gold mixed with debris, its melting point will also change.
In addition, 4-methoxyphenylpropionic acid-3-sulfonic acid has a certain degree of hygroscopicity. Because the polar groups in the molecule are easily attracted to water molecules in the air, in a high humidity environment, it will absorb water, causing its own weight to increase, morphology to change, or from dry powder to a slightly humid state. This hygroscopicity needs to be taken into account when storing and using the compound, and it must be properly stored to prevent its quality and performance from being affected by moisture absorption.
In summary, the physical properties of 4-methoxyphenylpropionic acid-3-sulfonic acid, such as appearance, solubility, melting point, and hygroscopicity, are indispensable factors in chemical research, industrial production, and related application fields.

Is 4-methoxyaniline-3-sulfonic acid chemically stable?

4-Methoxyphenylpropene-3-carboxylic acid, this is an organic compound. Its chemical properties are relatively stable, and the reasons are as follows:
First, its molecular structure is analyzed. In this compound, the benzene ring has a conjugated system, and the conjugated structure endows the molecule with additional stability. The π electrons can be delocalized in the conjugated system, which reduces the energy of the molecule, making the benzene ring part relatively stable and less susceptible to general chemical reactions. The methoxy group is connected to the benzene ring, and the oxygen atom in the methoxy group has lone pair electrons, which can occur p-π conjugation effect with the benzene ring, which further enhances the electron cloud density of the benzene ring and improves the stability of the benzene At the same time, this conjugation also affects the electron cloud distribution of the o-para-site of the benzene ring, thereby affecting the reactivity and selectivity of the compound.
Furthermore, although the carboxyl group has a certain activity, due to the separation of the propylene group from the benzene ring, the interaction between the benzene ring and the carboxyl group is buffered to a certain extent. Although the carbon-carbon double bond in the propylene group has a certain reactivity, its reactivity is not very high due to factors such as conjugation effect and steric hindrance. Under normal conditions, 4-methoxyphenylpropene-3-carboxylic acid is difficult to chemically react without specific reaction conditions and reagents.
For example, at room temperature and pressure without catalysts or special reagents, it will not spontaneously react significantly with common substances such as oxygen and water in the air. However, under certain conditions, such as in the presence of strong acids, strong bases or high temperatures and catalysts, its carboxyl groups can undergo esterification, neutralization and other reactions, and carbon-carbon double bonds can also undergo addition and oxidation reactions. However, in conventional environments, the chemical properties of 4-methoxyphenylpropene-3-carboxylic acids are relatively stable.

What is the preparation method of 4-methoxyaniline-3-sulfonic acid?

To prepare 4-methoxybenzaldehyde-3-sulfonic acid, you can follow the following method.
First take an appropriate amount of p-methoxybenzaldehyde and place it in the reactor. Under appropriate temperature and stirring conditions, slowly add fuming sulfuric acid. The amount of fuming sulfuric acid needs to be precisely controlled, and it should be added in a specific proportion according to the amount of p-methoxybenzaldehyde. This ratio is determined by repeated tests and calculations to ensure that the reaction is sufficient and there are few side reactions.
Add it up to maintain the reaction system in a certain temperature range. This temperature needs to be strictly controlled. If it is too low, the reaction will be slow, and if it is too high, it will easily cause frequent side reactions. Continue stirring during this period to make the reactants fully contact to promote the smooth progress of the reaction.
The reaction process is monitored in real time by means of thin-layer chromatography. When the raw material point almost disappears and the product point is significant and stable, the reaction can be regarded as reaching the expected level.
Then, slowly pour the reaction solution into an appropriate amount of ice water. This operation needs to be cautious, because the reaction solution will exothermic violently when mixed with ice water. After pouring, stir well to make the product evenly dispersed in the system.
Next, with an appropriate alkali solution, such as sodium hydroxide solution, carefully adjust the pH value of the system to a specific range to promote the product to precipitate in a suitable form.
The precipitated solids are collected by suction filtration, and then washed with an appropriate amount of cold water several times to remove impurities.
The resulting crude product is recrystallized with a suitable organic solvent. The choice of this organic solvent is crucial, and it needs to have good solubility to the product, and the solubility varies significantly at different temperatures. After recrystallization, 4-methoxybenzaldehyde-3-sulfonic acid with high purity can be obtained. The whole process requires fine operation and strict control of temperature, dosage, time and other factors to obtain satisfactory results.

What is the price range of 4-methoxyaniline-3-sulfonic acid in the market?

In today's market, the price of 4-methylaminobenzoic acid-3-sulfonic acid is quite popular. However, its price is not constant and often changes for various reasons.
The abundance of raw materials here has a huge impact on its price. If the raw materials are widely available and easy to obtain, the price may be flat; if the raw materials are scarce and difficult to find, the price will rise sharply. Furthermore, the supply and demand of the market also affect its price. Those who need it are numerous, and the supply is small, the price will be high; if there are few requests, and the stock is like a mountain, the price will inevitably fall.
And the technology of production is also related to its price. If the new technology can greatly increase the production efficiency and reduce the cost, the price may be close to the people; on the contrary, if the technology is stagnant, the cost will be huge, and the price will be difficult to drop.
Looking at the current market conditions, the price of 4-methylaminobenzoic acid-3-sulfonic acid is about tens to hundreds of dollars per catty. However, this is only a rough number, and the market conditions are ever-changing, or it may be easier. When traders trade, they should carefully observe the market conditions and weigh the reasons before they can get the appropriate price.