2-Aminophenol 4-Sulfonic Acid

Lingxian Chemical

Specifications

HS Code	887298
Chemical Formula	C6H7NO4S
Molar Mass	189.19 g/mol
Appearance	white to light gray powder
Solubility In Water	soluble
Melting Point	288 - 290 °C
Ph	acidic
Stability	stable under normal conditions
Odor	odorless
Density	1.603 g/cm³
Cas Number	98-37-3

Packing & Storage

Packing	25 - kg bag packaging for 2 - Aminophenol 4 - Sulfonic Acid.
Storage	2 - Aminophenol 4 - Sulfonic Acid should be stored in a cool, dry, well - ventilated area. Keep it away from heat sources, open flames, and oxidizing agents. Store in tightly closed containers to prevent moisture absorption and contamination. Avoid storage near incompatible substances to ensure safety and maintain the chemical's stability.
Shipping	2 - Aminophenol 4 - Sulfonic Acid is shipped in well - sealed, corrosion - resistant containers. Due to its chemical nature, it's transported under proper temperature and humidity control, following strict safety regulations for chemical shipments.

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General Information

Historical Development

"Historical Biography of 2-Aminophenol-4-Sulfonic Acid"
2-Aminophenol-4-Sulfonic Acid is also an important material in the chemical world. Tracing its origin, chemical research in the past has gradually flourished, and many wise men have continued to explore substances. At that time, the analysis of organic compounds was deepening, hoping to obtain new substances to meet the needs of various industries.
Craftsmen and scholars worked hard, and after years of trial, they came to this 2-Aminophenol-4-Sulfonic Acid. At the beginning, the preparation method was complicated, and the yield was not abundant. However, everyone was determined and worked tirelessly to improve the process. With the passage of time, its preparation technique has been perfected day by day, and the output has gradually increased. It has emerged in the printing and dyeing, medicine and other industries, and its function has become more and more obvious. From this perspective, this substance has been flourishing since its inception, and it really depends on the efforts of researchers of all dynasties to achieve today's prosperity.

Product Overview

2-Aminophenol-4-sulfonic acid is also a genus of chemical products. The properties of this product are white to off-white crystalline powder, with a certain solubility in water. Its preparation method is mostly obtained through a specific chemical reaction path.
In industrial applications, this product is quite important. It is often used as a dye intermediate, which can help dyestuffs to produce all kinds of fresh-colored dyes for dyeing fabrics and other dyeing processes. And because of its special chemical structure, it is also involved in some pharmaceutical synthesis fields, or is a key raw material for the synthesis of specific drugs.
However, this product should also be used with caution when using and storing. Because of its certain chemical activity, it should be stored in a dry and cool place to prevent deterioration or accidents. In this way, it is necessary to make good use of this 2-aminophenol-4-sulfonic acid to make it work in the industrial field.

Physical & Chemical Properties

2-Aminophenol-4-sulfonic acid, the physical and chemical properties of this substance are very important to our research. Its appearance is often white or slightly colored crystalline, slightly shiny in sunlight.
In terms of its solubility, it has a certain solubility in water and can be slowly dissolved. However, in organic solvents, the solubility varies. When heated, the stability has its own characteristics. When heated moderately, the properties do not change greatly; if the temperature is too high, it may decompose and emit a special odor.
Its chemical activity is quite significant, and it can react with a variety of reagents. When it encounters a base, it can form corresponding salts, and the reaction process may be accompanied by heat changes. The physical and chemical properties of this substance are of crucial significance in both industrial production and scientific research, and we should investigate them in detail to clarify their characteristics in order to make good use of them.

Technical Specifications & Labeling

There are chemical products today, called 2 - Aminophenol 4 - Sulfonic Acid. Its process specifications and identification (commodity parameters) are the key.
Process specifications are related to the manufacturing process of this product. It is necessary to use a fine method to control various variables, such as temperature, duration, proportion of materials used, etc. Make all elements appropriate to obtain high-quality products.
Identification (commodity parameters) can not be ignored. When its properties, such as color, state, taste. The purity and geometry of the label, the number of impurities, are all related to the quality of the product. And molecular weight, melting point, boiling point and other parameters, all need to be clearly marked, so that users can understand its properties and make good use of it. According to the accuracy of this process specification and marking, only good products can be obtained, which can run smoothly in the field of chemical industry.

Preparation Method

To prepare 2-aminophenol-4-sulfonic acid, the raw materials and production process are the key. First, take p-aminophenol-4-sulfonic acid and put it into the reactor in an appropriate amount. Add an appropriate amount of sodium nitrite solution, which is an important ingredient for the initiation of the reaction. Control the temperature in an appropriate range and slowly add it dropwise to prevent overreaction. This is the first step of the reaction.
When the reaction is advanced in an orderly manner, a reducing agent such as iron powder or sodium sulfide is introduced in a timely manner. With its reduction power, it promotes the conversion of p-aminophenol-4-sulfonic acid into 2-aminophenol-4-sulfonic acid. During the reaction process, closely monitor the degree of reaction and adjust it according to the color change of the reaction solution and the fluctuation of
As for the catalytic mechanism, specific catalysts, such as certain metal salts or organic compounds, can be used to reduce the energy barrier of the reaction, speed the reaction process, and improve the yield of the product. All these operations require following the procedures to obtain high-quality 2-aminophenol-4-sulfonic acid products.

Chemical Reactions & Modifications

The industry of chemical industry is related to people's livelihood. Its technology is refined and there are many products. Today there is 2 - Aminophenol 4 - Sulfonic Acid, which is very important in the field of chemistry.
Its chemical reaction, at the beginning, the raw materials are combined in the kettle, and the temperature and pressure are carefully adjusted. However, the initial reaction is often unsatisfactory, the yield is not abundant, and impurities are also present.
Later, various improvement methods are developed, and the catalyst is carefully studied. Choose the right one, which can promote the reaction to move quickly and improve the yield. And adjust the reaction environment, precise temperature control, so that the molecules collide orderly, and the reaction is better.
In this way, after repeated study, the chemical characteristics gradually became clear, and the efficiency of the reaction was greatly increased. The quality and quantity of 2 - Aminophenol 4 - Sulfonic Acid have been improved, which can be used by other industries and benefit the world. This is the unremitting work of chemical researchers.

Synonyms & Product Names

2-Aminophenol 4-Sulfonic Acid, also known as aminophenol sulfonic acid. It has many similarities, such as 4-amino-2-alkylbenzene sulfonic acid, etc. There are also differences in terms of commercial names. This compound is very important in the field of chemical research, and its properties, synthesis methods and applications are all of the concern of our chemical researchers. We have been exploring the same trade name through multiple channels, with the aim of better grasping the characteristics of this substance, and hoping to rationally apply it in the chemical industry, improve its utilization value, and promote the development of chemical industry.

Safety & Operational Standards

2-Aminophenol-4-sulfonic acid is an important chemical product. It is related to safety and operation standards, and cannot be ignored.
During production and preparation, all raw materials must be used according to precise proportions, and the weighing must be accurate. There is a slight difference, or the reaction may be disordered, endangering safety. And the raw materials are often dangerous, flammable, or corrosive. When storing, place in a cool, dry and well-ventilated place, away from fire and heat sources to prevent accidents.
During the reaction process, the control of temperature and pressure is crucial. If the temperature is too high, it may cause the reaction to be too fast, triggering the risk of flushing and explosion; if the temperature is too low, the reaction will be slow and the product quality will not reach the standard. The same is true for pressure, which must be maintained according to specific parameters to ensure a smooth reaction.
Operators must also be professionally trained and familiar with the operating procedures. When operating, it is necessary to wear complete protective equipment, such as protective clothing, gloves, goggles, etc., to avoid contact with harmful substances. The operation room should also be equipped with complete ventilation facilities to discharge harmful gases in time to ensure air quality.
After the product is made, the packaging should not be ignored. Appropriate packaging materials should be selected to ensure a good seal to prevent leakage. On the label, information such as ingredients and hazard signs must be clearly marked. During transportation, follow relevant regulations, transport carefully, and ensure the safe delivery of products.
In short, the safety and operation standards of 2-aminophenol-4-sulfonic acid are interconnected, and any omission in any link may lead to disaster. Therefore, practitioners should be in awe and strictly abide by the norms to ensure the safety of the whole process of production and use.

Application Area

2-Aminophenol-4-sulfonic acid, this substance is widely used. In the field of printing and dyeing, it can be used as a dye intermediate to help create colorful colors. With its help, fabrics are firm and bright, and add beauty to clothing. In the field of medicine, it also has important functions. It is a key raw material for the synthesis of specific drugs, helps cure diseases, and protects health. In chemical research, it is a common reagent for many experiments. Scientists use it to explore material properties and reaction mechanisms to promote the progress of chemical technology. In various application fields, it is like masonry, building the foundation of industry development, and is of great significance to improving production and life. It is an indispensable chemical material.

Research & Development

I am committed to the research of 2 - Aminophenol 4 - Sulfonic Acid. This substance is valuable in many fields of industry, but there are still challenges in its preparation and performance improvement.
In the past, the preparation methods were complicated and the efficiency was not ideal. I dedicated myself to improving the process and optimizing the reaction conditions, hoping to improve the yield and purity. After repeated tests, I explored the effects of different raw material ratios, temperature and time, and achieved some results. The yield has been improved and the purity has reached a new standard.
Looking to the future, we want to further expand its application. Explore its potential in the research and development of new materials, hoping to promote the development of related fields. Make unremitting efforts to contribute to the research and development of 2 - Aminophenol 4 - Sulfonic Acid, in order to achieve a higher level.

Toxicity Research

Guanfu 2 - Aminophenol 4 - Sulfonic Acid This substance, the study of its toxicity, is related to people's health, but also involves environmental safety. We study it carefully and observe its properties in detail. In the experimental environment, test its toxicity by various methods. Observe its impact on microorganisms and observe its changes in ecology.
After repeated tests, it can be seen that if this product is not careful into the body, or damage the viscera, disorderly physiological order. And in the environment, it can also disturb the ecological balance. It is scattered in water and soil, or harmful to grass, trees, insects and fish. Although it is commonly used in industry, the risk of toxicity must be prevented.
Therefore, studying the toxicity of this substance is a way to seek safe use. Hope to be able to formulate good policies, avoid its harm, promote its growth, maintain the safety of the public, protect the beauty of nature, and make the industry prosperous and harmless, and the ecology peaceful and long-lasting.

Future Prospects

Today, there is a product called 2 - Aminophenol 4 - Sulfonic Acid, which is an important product in the chemical industry. This product is unique in nature and has a wide range of uses. It has its place in various industries.
Our generation is engaged in chemical research and development, and we look forward to the future. The development of this product is quite grand. With the development of science and technology, the production rate of this product may increase and the quality will be better. And its application field is also expected to expand. For example, in material science, it may be able to give birth to novel materials; in pharmaceutical chemical industry, it may provide other ways for the creation of new drugs.
Although the road ahead may be difficult, we will keep the heart of research and move forward with determination. Looking forward to the future, 2 - Aminophenol 4 - Sulfonic Acid will develop its growth and contribute to the prosperity of industry and the progress of mankind, so as to achieve our grand vision for the future.

Frequently Asked Questions

What are the main uses of 2-aminophenol-4-sulfonic acid?

2-Aminopyridine-4-sulfonic acid, an important organic compound, has key uses in many fields.
In the field of medicine, it is a key drug synthesis intermediate. It can be combined with other compounds through specific chemical reactions to prepare a variety of drugs with excellent efficacy. For example, in the synthesis of some antibacterial drugs, 2-aminopyridine-4-sulfonic acid is involved, which can effectively enhance the inhibition and killing ability of drugs against bacteria and help fight various infectious diseases.
In the dye industry, it plays an indispensable role. With its unique chemical structure, it can be used as an important raw material for the synthesis of specific color dyes. The prepared dyes have the characteristics of bright color and excellent fastness, and are widely used in textile, printing and dyeing industries to make fabrics show rich and colorful hue, and are not easy to fade after multiple washes and light.
In the field of pesticides, 2-aminopyridine-4-sulfonic acid is also used. After rational design and reaction, it can be converted into pesticide active ingredients with insecticidal and herbicide effects. It can precisely act on specific physiological links of pests, interfering with their normal growth and reproduction, so as to achieve the purpose of ensuring the healthy growth of crops and improving yield.
Furthermore, in the field of materials science, it can participate in the preparation of some functional materials. By compounding or modifying with other substances, materials are endowed with special properties such as electrical conductivity and optical properties, which opens up a broad space for the development and application of new materials.
In summary, 2-aminopyridine-4-sulfonic acid plays a pivotal role in the development of modern chemical industry and related industries due to its wide and important applications in medicine, dyes, pesticides and materials science.

What are the physical properties of 2-aminophenol-4-sulfonic acid?

2-Aminopyridine-4-sulfonic acid is an organic compound with both amino and sulfonic acid groups. Its physical properties are quite unique, as follows:
- ** Properties **: Under normal conditions, 2-aminopyridine-4-sulfonic acid is mostly white to light yellow crystalline powder. This form makes it easy to identify and handle. In many chemical reactions and industrial production processes, this powder form is conducive to the mixing and dissolution of substances.
- ** Solubility **: The substance has a certain solubility in water. The existence of sulfonic acid groups gives it a certain hydrophilicity, and it can be partially dissolved in water due to the interaction of hydrogen bonds formed between sulfonic acid groups and water molecules. However, its solubility in organic solvents is relatively limited. The existence of pyridine rings and amino groups in the molecular structure affects its compatibility with organic solvents to a certain extent, resulting in poor solubility in common organic solvents such as ethanol and ether.
- ** Melting Point **: 2-aminopyridine-4-sulfonic acid has a specific melting point. The exact melting point value depends on factors such as the purity of the substance and is usually in a relatively high temperature range. As an important physical constant of a substance, the melting point is of great significance for the study of its state transition during heating. When purifying and identifying the substance, the melting point measurement is one of the key methods. By measuring the melting point, the purity of the substance can be judged. If the purity of the substance is high, the melting point range is narrow and close to the theoretical value; if it contains impurities, the melting point will decrease and the melting range will become wider.
- ** Stability **: Under conventional conditions, 2-aminopyridine-4-sulfonic acid has certain chemical stability. However, in view of the activity of amino groups and sulfonic acid groups, under specific conditions, it will also participate in many chemical reactions. For example, in a strong acid and a strong base environment, the amino group and the sulfonic acid group may undergo protonation and deprotonation respectively, which in turn affects the structure and properties of the substance. Under extreme conditions such as high temperature and the presence of strong oxidants, the stability of the substance may be challenged, and reactions such as oxidation and decomposition may occur.

What are the chemical properties of 2-aminophenol-4-sulfonic acid?

2-Aminopyridine-4-sulfonic acid is an organic compound. Its chemical properties are unique, let me explain in detail for you.
First of all, from the perspective of acidity, the sulfonic acid group in this compound is a strongly acidic group, which is easy to ionize hydrogen ions (H 🥰) in aqueous solution, so it is acidic. Its acidity is stronger than that of ordinary carboxylic acids. Due to the high stability of the conjugated base of the sulfonic acid group, hydrogen ions are easier to leave. This acidic property allows it to neutralize with bases, such as with sodium hydroxide (NaOH). The hydrogen ions in the sulfonic acid group combine with hydroxide ions (OH) to form water, resulting in corresponding salts and water.
Furthermore, the amino group (-NH ²) has a certain alkalinity. Although the amino base is relatively weak, under appropriate conditions, it can accept protons (H 🥰) and become alkaline. In an acidic environment, amino groups can be protonated to form -NH 🥰, which enables them to react with acids to form salts.
In addition, the pyridine ring of 2-aminopyridine-4-sulfonic acid also affects its chemical properties. Pyridine rings are aromatic and have a special distribution of electron clouds, which can undergo electrophilic substitution reactions. Due to the localization effect of amino groups and sulfonic acid groups, electrophilic substitution reactions often occur at specific locations of pyridine rings. Generally speaking, the amino group is the power supply group, which has a certain activation effect on the ortho and para-position; the sulfonic acid group is the electron-withdrawing group, which reduces the electron cloud density of the pyridine ring and changes the reactivity.
At the same time, the groups in the compound interact with each other. The strong electron-withdrawing property of the sulfonic acid group can slightly weaken the basicity of the amino group, and the power supply action of the amino group also has a subtle effect on the acidity of the sulfonic acid group.
In summary, 2-aminopyridine-4-sulfonic acid combines acidic, basic and aromatic ring reactivity, and is rich in chemical properties. It has important uses in many fields such as organic synthesis.

What is the production method of 2-aminophenol-4-sulfonic acid?

2-Aminopyridine-4-sulfonic acid is an important organic compound, which is widely used in medicine, pesticides, dyes and other fields. Its preparation methods are rich and diverse, and the following are common methods:
1. ** Sulfonation method **: Using 2-aminopyridine as the starting material, the sulfonation reaction is carried out with the help of concentrated sulfuric acid or fuming sulfuric acid. This is a classic preparation method. During the reaction, 2-aminopyridine is mixed with the sulfonating agent in a specific ratio, and the reaction is stirred at an appropriate temperature. After the reaction is completed, the crude product of 2-aminopyridine-4-sulfonic acid can be obtained through cooling, dilution, neutralization, filtration and other steps, and then purified by recrystallization and other means. For example, 2-aminopyridine is slowly added to the cooled concentrated sulfuric acid, the temperature is controlled, the reaction is stirred for several hours, and when the reaction is complete, the reaction solution is poured into ice water to dilute, neutralized to a suitable pH value in sodium hydroxide solution, filtered to obtain precipitation, and recrystallized with water to obtain a relatively pure product. The advantage of this method is that the raw material is easy to obtain and the operation is relatively simple; the disadvantage is that the reaction conditions are harsh, the sulfuric acid is highly corrosive, and there are many waste acids, which need to be properly handled.
2. ** Pyridine Derivatives Method **: Select suitable pyridine derivatives and introduce amino groups and sulfonic acid groups through multi-step reactions. For example, pyridine derivatives containing sulfonic acid are prepared first, and then amino groups are introduced through This process has many steps and requires fine control of the reaction conditions, but the structure of the product can be precisely regulated. For example, pyridine is first reacted with a sulfonating agent to form a pyridine sulfonic acid derivative, and the nitro group at a specific position on the pyridine ring is reduced to an amino group with a suitable reducing agent. This process requires the selection of a suitable solvent, temperature and reaction time to ensure the selectivity and yield of the reaction. This method has the advantages of high product purity and strong structural designability; the disadvantage is that the process is complicated and the cost is high.
3. ** Microbial fermentation method **: Using specific microorganisms, 2-aminopyridine-4-sulfonic acid is synthesized through a biological metabolism process. This is a green and environmentally friendly production method with mild reaction conditions, high selectivity and little pollution. Under suitable culture conditions, microorganisms convert specific substrates into target products. However, the current technology maturity of this method is not as good as that of chemical synthesis, and in-depth research is still needed in terms of microbial screening, optimization of culture conditions, and product separation and extraction. For example, the strains that can synthesize 2-aminopyridine-4-sulfonic acid are screened out, the medium composition and fermentation conditions are optimized, so that microorganisms can efficiently synthesize the product, and then the product is obtained through cell fragmentation, isolation, and purification.

What are the precautions for storing and transporting 2-aminophenol-4-sulfonic acid?

There are a number of important precautions to keep in mind when storing and transporting furodiaminopyridine-4-sulfonic acid.
Bearing the brunt is related to storage. This substance should be stored in a cool, dry and well-ventilated place. Because a cool environment can reduce the risk of biological change due to excessive temperature, dry places can avoid moisture, and good ventilation can prevent the accumulation of harmful gases. If placed in a humid place, it may react with water vapor, causing quality damage; if placed in a high temperature environment, it may cause adverse conditions such as decomposition.
Furthermore, the packaging must be tight. Appropriate packaging materials must be selected to ensure good sealing performance to prevent the substance from contacting with outside air, moisture, etc. If the packaging is damaged, it will not only reduce the quality of the product, but also cause pollution to the surrounding environment.
As for transportation, it should not be taken lightly. The means of transportation should be kept clean and dry, and there should be no other debris that may react with it. And during transportation, severe vibration and collision should be avoided to avoid packaging damage. At the same time, it is necessary to properly label the transportation in accordance with relevant regulations and standards, so that both transporters and regulators can clearly understand the characteristics of the goods transported, so that appropriate protective measures can be taken.
In addition, whether it is stored or transported, it should be kept away from fire sources, heat sources and strong oxidants. Because it may have certain chemical activity, it is easy to cause combustion or even explosion in case of fire and heat sources; contact with strong oxidants may also cause violent chemical reactions, bringing unpredictable dangers. Only with caution and attention to the above can we ensure the safety and quality of di-aminopyridine-4-sulfonic acid during storage and transportation.