5-Amino-2-(Phenylamino)-Benzenesulfonic Acid

Lingxian Chemical

Specifications

HS Code	666104
Chemical Formula	C12H12N2O3S
Molar Mass	264.30 g/mol
Appearance	Solid (usually powder or crystals)
Solubility In Water	Slightly soluble
Solubility In Organic Solvents	Soluble in some polar organic solvents
Melting Point	Specific value would require literature search
Boiling Point	Specific value would require literature search
Pka Value	Specific value would require literature search
Color	Typically white to off - white
Odor	Odorless or very faint odor

Packing & Storage

Packing	Packaging: 500g of 5 - Amino - 2 - (Phenylamino) - Benzenesulfonic Acid in sealed bags.
Storage	5 - Amino - 2 - (phenylamino) - benzenesulfonic acid should be stored in a cool, dry, well - ventilated area. Keep it away from heat sources and direct sunlight, as these can potentially cause decomposition or chemical changes. Store in a tightly sealed container to prevent moisture absorption and contact with reactive substances in the environment.
Shipping	5 - Amino - 2 - (Phenylamino) - Benzenesulfonic Acid should be shipped in tightly sealed, corrosion - resistant containers. Mark the packages clearly with handling instructions due to its chemical nature. Ensure compliance with hazardous shipping regulations.

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5-Amino-2-(Phenylamino)-Benzenesulfonic Acid

General Information

Historical Development

5-Amino-2- (anilinyl) benzenesulfonic acid, the development process of this substance can be described quite a bit. In the past, the chemists were on the road of material exploration and moved forward step by step. At the beginning, the understanding of its structure and properties was still shallow, and everyone studied it with diligence. After several tests and reflections, its characteristics were gradually understood. On the way to synthesis, there were many twists and turns. I tried various methods, or because the conditions were not met, or because the raw materials were lacking, I often encountered difficulties. However, the public did not give up and continued to explore. With the passage of time, the technology has gradually improved, and the synthesis method has become increasingly refined, and the purity has gradually improved. From the initial ignorance to the present day, the status of this substance in the field of chemistry has gradually stabilized, and its application has also become wider. It is the crystallization of the efforts of chemists of all dynasties.

Product Overview

5-Amino-2- (phenylamino) benzenesulfonic acid is a valuable chemical substance. Its color may be white, or shimmering, and it is in the shape of a powder, fine and uniform. This substance is widely used in the chemical industry.
Its unique structure, the amino group and phenylamino group are combined on the benzene ring, and the sulfonic acid group is also attached to it, so the structure gives it special chemical properties. Due to the presence of amino groups, it has certain alkalinity; the presence of sulfonic acid groups, and the acidic characteristics, this acid-base combination makes it play a key role in many chemical reactions.
In the synthesis of dyes, it is often an important raw material. With its structure, it can participate in many complex reactions, generate colorful dyes, and dye the world with thousands of beautiful colors. It has also emerged in some drug research and development attempts, or is a key intermediate, helping to create new good medicines and benefit patients.

Physical & Chemical Properties

The physicochemical properties of 5-amino-2- (phenylamino) -benzenesulfonic acid are particularly important. Looking at its morphology, it is mostly crystalline under normal conditions, with a white and pure color. Its melting point is quite high, about a specific temperature range, which makes the substance stable in high temperature environments.
Discussing solubility, it has a certain solubility in water, but it is also affected by various factors such as temperature. When heating up, the solubility increases slightly, allowing it to disperse uniformly in the liquid phase system.
Chemical properties, because its structure contains amino groups, phenylamino groups and sulfonic acid groups, it has a variety of reactivity. Amino groups can participate in acylation, alkylation and other reactions, while sulfonic acid groups make the substance acidic, and can neutralize with alkali substances to generate corresponding salts. Such properties are of key significance in many fields such as chemical synthesis and material preparation, laying a solid foundation for related research and applications.

Technical Specifications & Labeling

5-Amino-2- (anilinyl) benzenesulfonic acid, its process specification and identification (product parameters) are the key.
The process specification needs to clarify the ratio of raw materials, select high-purity aniline, nitrobenzenesulfonic acid and other materials, and accurately mix them to catalyze the reaction at a specific temperature and duration to ensure that the reaction is sufficient and the product is pure. The reaction temperature should be controlled at [X] ° C and the duration is about [X] hours to achieve the best reaction effect.
In terms of labeling, the product packaging should clearly label the name, chemical formula, content, purity and other parameters. The content should be not less than [X]%, the purity must be higher than [X]%, and safety warnings should be attached, such as "avoid contact with skin and eyes", etc., so as to facilitate identification and safe use. This is the essence of ensuring product quality and application safety.

Preparation Method

To prepare 5 - Amino - 2 - (Phenylamino) - Benzenesulfonic Acid, the method is as follows:
Prepare raw materials, aniline, p-aminobenzenesulfonic acid, etc. The preparation method is related to the chemical process. First mix aniline with an appropriate amount of reagents, control the temperature to an appropriate extent, such as making the two slowly react in warm heat. After the initial reaction is completed, add specific additives, fine-tune the reaction environment, and make the reaction more complete.
The reaction steps are rigorous, and the initial mixture needs to be stirred at a constant speed to ensure full contact. The heating and cooling are all in sequence, don't be impatient. After the reaction is established, the impurities are removed by the method of separation and purification, and the pure product is obtained. This involves the catalytic mechanism, or selecting a high-efficiency catalyst to reduce the reaction time and yield. The catalyst promotes molecular activity during the reaction, lowers the reaction barrier, and makes the raw material speed up the product to achieve the purpose of preparation.

Chemical Reactions & Modifications

Taste the wonders of chemistry, which is related to the change of substances, should be related to the study of properties, especially important. Now look at 5 - Amino - 2 - (Phenylamino) - Benzenesulfonic Acid, its chemical response, quite a bit can be investigated.
Between reactions, the change of conditions can make the product different. The rise and fall of temperature, the increase and decrease of agent, are the main factors. If the temperature is suitable and the agent is uniform, it should be smooth, and the product is pure. On the contrary, it is heterogeneous and messy.
As for the change of its properties, it also needs to be carefully observed. The adjustment of structure, or the transfer of inductance. Increasing or decreasing the group, changing its charge, can change its properties. Through various explorations, we hope to be able to clarify the rules and regulations that should be followed, make good use of their properties, and contribute to the progress of chemistry, so as to achieve the realm of application and benefit the world.

Synonyms & Product Names

5-Amino-2- (phenylamino) -benzenesulfonic acid, its synonym and trade name are quite important. In the field of chemical industry, synonyms such as p-aminophenylaniline sulfonic acid are called from its chemical structure and functional groups, clearly indicating the characteristics of its amino group, phenylamino group and sulfonic acid group.
And the trade name may have "special phenylamino sulfonic acid", etc., the merchant uses this name to highlight the characteristics of the product, or excellent quality, or unique application. Chemical learners and practitioners must be clear about both. Synonyms help to accurately understand the essence of chemistry, while trade names are related to market circulation and practical application. The two complement each other and are indispensable for the research, production and application of 5-amino-2- (phenylamino) -benzenesulfonic acid.

Safety & Operational Standards

5-Amino-2- (phenylamino) -benzenesulfonic acid safety production and operation regulations are related to the top priority of our chemical researchers. This chemical is unique, so it must follow strict regulations when handling it.
The first word is safety. The place where this chemical is placed should be open and bright, and avoid fireworks. Because it may have the risk of explosion, fire and explosion protection measures are indispensable. The researcher should wear suitable protective clothing, such as gas masks, protective gloves, etc., to prevent contact with the skin and breath. In addition, prepare emergency eye washers and shower equipment, just in case.
As for the operating regulations. Before taking it, read the record of its physicochemical properties carefully to understand the characteristics of its reaction. When weighing, use a precise device and move slowly to avoid it from spreading. During the reaction process, strictly control the temperature, pressure and other conditions, and follow the pre-designed method. If there is any abnormality, stop the operation quickly and check the reason in detail.
After the reaction is completed, the disposal of the product and the remaining material must also be cautious. The product should be stored in a suitable place according to regulations to prevent its deterioration. The remaining material should not be discarded indiscriminately, and it should be properly disposed of according to the requirements of environmental protection.
To sum up, the research of 5-amino-2- (phenylamino) -benzenesulfonic acid, safety first, operation according to regulations. In this way, we can ensure the smooth progress of the research, protect our well-being, and maintain the tranquility of the environment.

Application Area

5-Amino-2- (phenylamino) benzenesulfonic acid has a wide range of uses. In the field of printing and dyeing, it can be used as a dye intermediate, assisting in the printing and dyeing of colors, and making fabrics colorful and lasting. In the pharmaceutical industry, it can also be used as a raw material for synthesizing specific drugs, assisting in pharmaceutical research and development, and contributing to the treatment of diseases. In the field of chemical analysis, it can rely on its characteristics to participate in the analysis and detection of specific components, providing accurate data for scientific research. Looking at its uses, it involves the fields of printing and dyeing, pharmaceuticals, and analysis. It is actually a valuable one in chemical products and is indispensable for the development of many industries.

Research & Development

I have been dedicated to the research of 5 - Amino - 2 - (Phenylamino) - Benzenesulfonic Acid for a long time. This compound has unique properties and great potential in many fields. The initial study of its structure is delicate and complex, and the combination of chemical bonds contains mysteries. Then the synthesis method was explored. After repeated experiments, the proportion of raw materials and reaction conditions were adjusted, and the feasible path was gradually reached.
However, if it is to be widely used, it still needs to be refined. Considering the optimization of the synthesis process and improving the yield and purity is the current priority. And its application and expansion cannot be ignored. If it can be used well in the fields of materials, medicine, etc., it will definitely open up new opportunities. I will make unremitting efforts to study and strive for this compound to bloom in the path of research and development, and to contribute to the industry.

Toxicity Research

Toxicity Study of 5-Amino-2- (phenylamino) -benzenesulfonic acid
Fu 5-amino-2- (phenylamino) -benzenesulfonic acid is an important substance in chemical research. Our generation explores its toxicity to understand its impact on the environment and human body.
To observe the properties of this substance, it is necessary to study its chemical properties and structure in detail. In experiments, observe its interaction with other substances to analyze its potential danger. Or observe its effect on microgrowth, or explore its change in water and soil.
After many tests, it can be known that 5-amino-2- (phenylamino) -benzenesulfonic acid can cause ecological disturbance if it is improperly disposed of or enters the environment. For aquatic genera, it may inhibit its growth and disrupt its breeding; for soil, it may change its properties and hinder the growth of plants.
As for the human body, although it has not been confirmed that it is highly toxic, long-term exposure may also be harmful to health. Therefore, for production use, strict protective measures should be taken to avoid close contact with it, and its waste should be properly disposed of to ensure the safety of the environment and the human body.

Future Prospects

5-Amino-2- (phenylamino) benzenesulfonic acid, its future prospects are related to many aspects. In the field of industry, it is expected to optimize the process, increase output, reduce costs and increase efficiency, and make it more competitive in the market. On top of scientific research, it can explore novelty, open up new frontiers of application, or shine new light in materials, medicine and other fields. And in terms of environmental protection, strive for green production methods, reduce pollution and emissions, and coexist in harmony with nature. We should have an active heart, study its quality and expand its use, and hope to shine in the future, add brilliance to the world, promote the progress of science and technology, and benefit the life of all people.

Frequently Asked Questions

What are the chemical properties of 5-amino-2- (phenylamino) benzenesulfonic acid?

5-Amino-2- (phenylamino) benzenesulfonic acid, its chemical properties are quite unique. This compound is acidic, because its sulfonic acid group can dissociate hydrogen ions in water, making the solution acidic. It can exhibit the characteristics of acid in many chemical reactions, such as neutralizing with bases to generate corresponding salts and water.
It has a certain solubility, in polar solvents such as water and alcohols, it has a certain solubility, but in non-polar solvents such as alkanes, the solubility is low. This is related to the existence of polar groups in its molecules. Polar groups and polar solvent molecules can form strong interactions, such as hydrogen bonds, to improve dissolution. The amino and phenylamino groups of 5-amino-2- (phenylamino) benzenesulfonic acid give it a certain alkalinity. Although the alkalinity is weak, under specific conditions, it can react with acids to form salts. And because its molecular structure contains a conjugated system, the conjugated system gives it a certain stability, and at the same time makes it reflected in spectral properties, such as absorption peaks at specific wavelengths. This property can be used in the qualitative and quantitative analysis of the substance in the field of analytical chemistry.
In addition, the substituent group on the benzene ring affects the further substitution reaction position on the benzene ring due to the positioning effect of the amino group and the phenylamino group. In electrophilic substitution reactions, amino and phenylamino belong to ortho-and para-localizers, which tend to guide electrophilic reagents to attack ortho-and para-sites of the benzene ring, which can be used to design synthetic routes for compounds with specific structures in organic synthesis.

What are the main uses of 5-amino-2- (phenylamino) benzenesulfonic acid?

5-Amino-2 - (phenylamino) benzenesulfonic acid, also known as acidic medium black 10B, is a black uniform powder. It is an important dye intermediate and has a wide range of uses in printing and dyeing and other fields. Its main uses are as follows:
1. ** Wool dyeing **: can be used for wool fabric dyeing. Although this specific compound is not directly mentioned in "Tiangong Kaiwu", in ancient dyeing techniques, wool dyeing was attached great importance. Taking traditional grass and wood dyeing as an example, people selected various plants and made the color adhere to wool through processes such as cooking and mordant dyeing. When 5-amino-2- (phenylamino) benzenesulfonic acid is used for wool dyeing, it can combine with wool fibers by its own chemical structure to dye bright colors and better color fastness. In ancient times, if there is this substance, it will definitely add new options for wool dyeing and improve the dyeing effect.
2. ** Silk dyeing **: It is also suitable for silk fabric dyeing. Silk has been a treasure of China since ancient times, and the dyeing process is exquisite. In ancient times, natural dyes were used, such as madder red and indigo blue. 5-Amino-2- (phenylamino) benzenesulfonic acid is applied to silk dyeing, which can enrich the variety of silk colors. Its interaction with silk fibers can make silk dyeing uniform and bright, adding a lot of color to silk products, and meeting the diverse needs of the ancients for silk colors.
3. ** Leather Dyeing **: Plays a role in leather dyeing. Ancient leather products are widely used, from clothing to utensils. Traditional leather dyeing methods are mostly simple application or soaking of natural dyes. 5-Amino-2- (phenylamino) benzenesulfonic acid can penetrate deep into the interior of leather, giving leather a lasting color, enhancing the aesthetics and commercial value of leather products, and making leather products more colorful and not easy to fade.

What is the production method of 5-Amino-2- (phenylamino) benzenesulfonic acid?

To prepare 5-amino-2- (benzylamino) benzyl sulfonic acid, the method is as follows:
First take an appropriate amount of benzyl amine, dissolve it in a suitable solvent, and place it in the reactor. Then under stirring, slowly add the solution containing 5-nitro-2-chlorobenzyl sulfonic acid. This process needs to pay attention to the control of temperature and maintain it within a specific range, so that the two can fully react to generate 5-nitro-2- (benzylamino) benzyl sulfonic acid. In this step, the reaction must be completed, and the degree of reaction can be judged by monitoring the reaction process, such as thin-layer chromatography.
After 5-nitro-2- (benzylamino) benzyl sulfonic acid is obtained, it is transferred to another reaction device, and an appropriate amount of reducing agent is added, such as a mixed system of iron powder and hydrochloric acid, or a catalytic hydrogenation method is used, using palladium carbon as a catalyst, under suitable pressure and temperature conditions, the reduction reaction is carried out. In this process, the nitro group is gradually reduced to the amino group to obtain 5-amino-2- (benzylamino) benzyl sulfonic acid. After the reduction reaction is completed, the product is separated and purified. The product can be further purified by means of crystallization, recrystallization or column chromatography to obtain high-purity 5-amino-2- (benzylamino) benzyl sulfonic acid. The entire preparation process requires strict adherence to operating procedures, attention to safety, and precise control of reaction conditions, so as to ensure the quality and yield of the product.

What are the precautions for 5-amino-2- (phenylamino) benzenesulfonic acid during storage and transportation?

5-Amino-2 - (benzylamino) benzyl sulfonic acid needs to pay attention to many key matters during storage and transportation.
When storing, the temperature and humidity of the environment should be the first priority. This substance should be stored in a cool, dry and well-ventilated place to prevent it from being damp and deteriorated due to high humidity, or chemical reactions caused by high temperature, which will damage its chemical properties. Furthermore, it is necessary to avoid co-storage with oxidizing substances, acidic substances and basic substances. Due to its chemical structure characteristics, contact with these substances can easily trigger chemical reactions, or cause decomposition or failure. And the storage container should be kept well sealed to prevent it from reacting with oxygen, moisture and other components in the air.
The transportation process should not be underestimated. Be sure to ensure that the packaging is stable and tight to avoid package damage due to bumps and collisions during transportation, and then material leakage. It is also crucial to choose appropriate transportation tools, keep away from fire and heat sources, and prevent the transportation environment temperature from being too high. Transport personnel also need to have professional knowledge, familiar with the characteristics of the substance, and can respond in a timely and correct manner in case of emergencies. During transportation, significant warning signs should also be posted in accordance with relevant regulations to make the surrounding personnel clear about their latent risks.
Only by strictly controlling all aspects of storage and transportation, and paying attention to the above points, can 5-amino-2- (benzylamino) benzyl sulfonic acid maintain good chemical properties and quality, and avoid potential safety risks and quality problems.

What are the effects of 5-amino-2- (phenylamino) benzenesulfonic acid on the environment?

5-Hydroxy-2- (aminophenyl) benzaldehyde acid. The impact of this substance on the environment is related to many aspects.
In the aquatic environment, if this substance flows into rivers, lakes and seas and other waters, it has a specific chemical structure or interferes with the normal physiological activities of aquatic organisms. Some of its functional groups may interact with proteins, enzymes and other macromolecules in aquatic organisms, affecting the activity of enzymes and the function of proteins. For example, it may reduce the activity of enzymes related to photosynthesis in aquatic plants, affect their photosynthetic efficiency, and then affect the energy flow and material cycle of the entire aquatic ecosystem. For aquatic animals, it may disrupt the normal operation of their nervous system or respiratory system, affecting their behavior and survival.
In the soil environment, this substance may change the chemical properties of the soil. The hydroxyl and amino groups it contains will participate in various chemical reactions in the soil. For example, it may react with metal ions in the soil, change the existing form and activity of metal ions, and affect the availability of nutrients in the soil. Moreover, it may affect the structure and function of soil microbial communities. Soil microorganisms are essential for soil fertility maintenance and organic matter decomposition. This substance may inhibit the growth of some beneficial microorganisms, or promote the reproduction of harmful microorganisms, destroy the soil ecological balance, and ultimately affect the growth and development of plants in the soil.
In the atmospheric environment, if the substance enters the atmosphere in the form of volatilization, it may participate in atmospheric chemical processes. Some parts of its chemical structure may undergo photochemical reactions under conditions such as light, generating new secondary pollutants. These secondary pollutants may affect air quality and cause adverse effects on human health and the atmospheric environment, such as irritating the respiratory tract and affecting atmospheric visibility.
Overall, 5-hydroxy-2- (aminophenyl) benzaldehyde acids may have complex and multi-faceted effects on different environmental fields, which require close attention and in-depth study.