4-Amino-3-Hydroxy-1-Naphthalenesulfonic Acid

Lingxian Chemical

Specifications

HS Code	869698
Chemical Formula	C10H9NO4S
Molar Mass	239.25 g/mol
Appearance	Solid
Color	Typically white to off - white
Solubility In Water	Moderately soluble
Pka Value	Varies depending on acidic groups
Melting Point	Decomposes rather than has a distinct melting point
Density	Data may vary but in the range of common organic solids
Stability	Stable under normal conditions, but may react with strong oxidizing agents

Packing & Storage

Packing	250 - gram bottle packaging for 4 - Amino - 3 - Hydroxy - 1 - Naphthalenesulfonic Acid.
Storage	4 - Amino - 3 - Hydroxy - 1 - Naphthalenesulfonic Acid should be stored in a cool, dry, well - ventilated area. Keep it away from heat sources, open flames, and strong oxidizing agents. Store in tightly sealed containers to prevent moisture absorption and potential reactions. Avoid storing near incompatible substances to ensure stability and safety.
Shipping	4 - Amino - 3 - Hydroxy - 1 - Naphthalenesulfonic Acid is shipped in well - sealed, corrosion - resistant containers. Special care is taken to prevent exposure to moisture and heat during transit, ensuring product integrity.

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4-Amino-3-Hydroxy-1-Naphthalenesulfonic Acid

General Information

Historical Development

4-Amino-3-hydroxy-1-naphthalenesulfonic acid, the development of its substances has a long history. In the past, chemists worked diligently on the way of organic synthesis. At the beginning, they gradually gained insight into the characteristics of naphthalene compounds. After many attempts and explorations, the method of synthesis of this compound was obtained.
Early synthesis, harsh conditions, and low yield. However, scholars are determined to improve the process. With the passage of time, science and technology have advanced, and the synthesis technology has become more and more refined. The reaction conditions are easier to control, and the yield has been greatly improved.
This compound is gradually used in dyes, medicine and other fields. From a little-known beginning to a wide range of applications, it is an important chapter in the development of chemistry, witnessing the road of scientific research in the past and laying the foundation for future research.

Product Overview

4-Amino-3-hydroxy-1-naphthalenesulfonic acid, this compound is also commonly known as 4-Amino-3-Hydroxy-1-Naphthalenesulfonic Acid. It is a naphthalene derivative and has many uses in dyes, medicine and other fields.
Looking at its structure, on the naphthalene ring, the amino group, hydroxy group and sulfonic acid group are cleverly arranged. The amino group and hydroxy group endow it with certain alkalinity and nucleophilicity, and the sulfonic acid group makes the compound have good water solubility.
The method of synthesis, mostly using naphthalene as the starting material, is prepared by sulfonation, nitrification, reduction and other steps. The reaction conditions at each step are crucial, and precise control is required to improve the yield and purity.
In practical applications, in the dye industry, it can be used as a coupling component to synthesize a variety of brightly colored dyes; in the field of medicine, its unique structure may provide an opportunity for the development of new drugs.
Therefore, 4 - Amino - 3 - Hydroxy - 1 - Naphthalenesulfonic Acid has important value in the chemical industry and scientific research due to its unique structure and properties.

Physical & Chemical Properties

4-Amino-3-hydroxy-1-naphthalenesulfonic acid, its physical and chemical properties are the key. Looking at this substance, at room temperature, it is in a solid state, with a white color, like a powder, fine and uniform. Its melting point is worth noting, about a specific temperature, this characteristic is related to the node of its thermal change.
When it comes to solubility, it is soluble in water, but the solubility varies according to conditions such as water temperature. When the water temperature increases, the solubility may increase. In organic solvents, there is also a certain degree of solubility, and the degree of solubility varies in different solvents.
Its chemical properties are active, and amino, hydroxyl and sulfonic acid groups give it unique reactivity. It can neutralize with alkali, and can also carry out reactions such as substitution and condensation with specific reagents. These many physical and chemical properties are of great significance in the application of chemical industry, medicine and many other fields, laying a solid foundation for the development of related industries.

Technical Specifications & Labeling

For 4-amino-3-hydroxy-1-naphthalenesulfonic acid, its process specifications and identification (commodity parameters) are the key. The preparation of this compound requires a rigorous method. From the selection of raw materials, pure products must be selected, and the proportion is accurate. The reaction conditions also need to be strictly controlled, and the temperature and duration are fixed. If the temperature is controlled in a certain range, the reaction takes several hours to ensure the purity and quality of the product.
On the label, various parameters should be specified. Its appearance and color need to be accurately described, such as what color and state it is. The limit of impurities contained should also be clearly marked to show the excellence of quality. Molecular weight, molecular formula and other key data should not be omitted, which is the basis for identification. In this way, it is possible to make this product suitable for each application without error.

Preparation Method

The method of preparing 4-amino-3-hydroxy-1-naphthalenesulfonic acid is related to the raw materials and production process, reaction steps and catalytic mechanism. First, an appropriate amount of naphthalene is taken as the initial raw material, and it is sulfonated with sulfuric acid to form naphthalenesulfonic acid. Then, through nitrification reaction, nitro groups are introduced into specific positions of naphthalenesulfonic acid to obtain nitro-naphthalenesulfonic acid.
Then, with an appropriate reducing agent, the nitro group of nitro-naphthalenesulfonic acid is also an amino group to obtain amino-containing naphthalenesulfonic acid. After controlling the reaction conditions, hydroxyl groups are introduced at specific positions to form 4-amino-3-
During the reaction process, precise temperature control, reaction time and material ratio are essential. Selecting a high-efficiency catalyst can promote the reaction rate and improve the purity of the product. After careful operation of various steps, the target product can be obtained, which is a good method for chemical production.

Chemical Reactions & Modifications

The modification of 4-amino-3-hydroxy-1-naphthalenesulfonic acid is of great importance. In our research and development of this compound, we have re-prepared it. Under specific conditions, this compound can produce many kinds of delicate reactions. In the case of a certain chemical compound, the alkyl group may be substituted, and the sulfonic acid group may also be substituted, resulting in the remodeling of the whole molecule.
The modification is designed to give this compound new properties. It can be modified, such as the introduction of specific groups, to improve its solubility and characterization. In this way, it may be able to make it more effective in the synthesis of multiple domains, such as dyes and chemical compounds. Researchers do not explore this, but hope to find a breakthrough direction.

Synonyms & Product Names

4-Amino-3-hydroxy-1-naphthalenesulfonic acid, this substance is used in the field of chemical industry and has a wide range of uses. There are also many synonymous names and commodity names.
In the past, the ancestors studied this substance in the process of chemical exploration. At that time, the names, or according to their characteristics, or according to their production methods, were different. After the years, many names have gradually become unified due to changes in time.
Today, in industrial production, merchants sell them under different commodity names, all of which are in response to the needs of the market and show the characteristics of the products. However, they are all 4-amino-3-hydroxy-1-naphthalenesulfonic acid. Although the synonymous names and commodity names vary in appearance, they actually refer to the same thing, which adds luster to the field of chemistry and plays its unique role in various industries.

Safety & Operational Standards

4-Amino-3-hydroxy-1-naphthalenesulfonic acid is a common chemical in chemical research. If you want to use this product, you must first clarify its safety and operation standards to ensure the smooth operation of the experiment and the safety of personnel.
For safety reasons, the first priority is protection. This product may be irritating to the skin, eyes, and respiratory tract, so the operator should wear protective clothing, protective gloves, and goggles, and if necessary, respiratory protective equipment. The experimental site should also be well ventilated to prevent the accumulation of harmful gases.
Furthermore, the method of storage should not be underestimated. It should be placed in a cool, dry and ventilated place, away from fire and heat sources, and must be stored separately from oxidants, acids, alkalis, etc., and must not be mixed with storage to prevent dangerous chemical reactions.
As for the operation specifications, it is necessary to read the relevant information carefully before the experiment to be familiar with its properties and reaction characteristics. When weighing, the action should be gentle and precise to avoid powder flying. During the dissolution or reaction process, according to its characteristics, control the temperature and speed, and strictly observe the reaction phenomenon. If there is an accident, such as the spill of reagents, it should be dealt with immediately according to the established emergency procedures.
In short, the use of 4-amino-3-hydroxy-1-naphthalenesulfonic acid, safety and operating standards are the top priority. Following this path can lead to steady progress in chemical research without any worries.

Application Area

4-Amino-3-hydroxy-1-naphthalenesulfonic acid, this substance has a wide range of uses. In the field of dyes, it can be used to synthesize a variety of bright and firm dye raw materials. After delicate combination reactions, bright and long-lasting dyes can be obtained. Printing and dyeing fabrics have bright colors and are not easy to fade. In pharmacies, it may be a key intermediate, which is transformed into a drug with specific curative effects and can save patients. In the field of chemical analysis, it can be used as a reagent, with its unique chemical properties, sensitive detection and accurate determination of the content or properties of certain substances. Its uses are diverse, and it is indispensable in many industries. It has made remarkable achievements in promoting the development of related industries.

Research & Development

In modern times, chemistry has flourished, and the research of various substances has advanced day by day. In this case, 4 - Amino - 3 - Hydroxy - 1 - Naphthalenesulfonic Acid is carefully studied by our researchers.
At the beginning, we explored its properties and analyzed its structure, and after repeated experiments, we got the essentials. In order to clarify its characteristics, we measured it with various instruments and observed its changes under different conditions.
Then we think about its application. In the field of dyes, it is expected that with its characteristics, bright and long-lasting dyes will be produced. In medicine, after research, its potential effect on some diseases may be discovered.
Our researchers should make unremitting efforts to explore the potential of this material, hoping to make breakthroughs, and promote the development of this material in various fields, for the use of the world, and for the benefit of people.

Toxicity Research

Today there is a thing called 4 - Amino - 3 - Hydroxy - 1 - Naphthalenesulfonic Acid. I am a chemical researcher, and I have been studying its toxicity for a long time.
The toxicity of this thing is related to the safety of all living beings. It may enter the body through the mouth and nose, or seep through the skin. At first, I did not notice its difference, but when it accumulates, I am tired, and I am afraid of illness. Its poison may damage the viscera, or disrupt qi and blood, which cannot be ignored.
Our generation should study the nature of this poison in detail, understand the cause of its harm, and seek solutions. I also hope that when people come into contact with this object, they will be cautious and well-protected, and they will not let poisons invade the body. It is essential to protect their health.

Future Prospects

I have dedicated myself to the research of 4 - Amino - 3 - Hydroxy - 1 - Naphthalenesulfonic Acid. Looking at the current state, although we have already achieved something, there is still a vast environment for us to explore in the future.
This product is in the chemical industry and has great potential. The future research and development path may be focused on the mention of purity. Only with higher purity can it make its performance better and develop its excellent performance in various applications. And it can explore new ways and expand its use. In the field of medicine, it may become the foundation of innovative pharmaceuticals; in the field of materials, it is also expected to help the rise of new materials.
In addition, the preparation method also has the hope of improvement. Seek simpler and more efficient methods, reduce its consumption, increase its production, control the cost, and make benefits. I believe that with time and careful research, 4 - Amino - 3 - Hydroxy - 1 - Naphthalenesulfonic Acid will surely shine in the future, adding bricks and mortar to the progress of various industries and becoming an extraordinary achievement.

Frequently Asked Questions

What are the main uses of 4-Amino-3-Hydroxy-1-Naphthalenesulfonic Acid?

4-Amino-3-hydroxy-1-naphthalenesulfonic acid, which has a wide range of uses. In the preparation of dyes, its position is crucial. Due to its unique chemical structure, it can be used as a key intermediate. Through complex chemical reactions, it can carefully construct various colorful and excellent performance dyes. These dyes can make fabrics show a colorful appearance in the field of textile printing and dyeing, adding color to the textile industry.
Furthermore, in the field of pharmaceutical synthesis, it can also be seen. As an indispensable raw material, through the delicate synthesis process, it is expected to be converted into compounds with specific pharmacological activities, or can be used for the treatment and prevention of diseases, contributing to the development of the pharmaceutical industry.
In addition, in the production of some fine chemicals, 4-amino-3-hydroxy-1-naphthalenesulfonic acid also plays an important role. With its special chemical properties, it helps to produce fine chemicals with high quality and unique properties to meet the needs of many special fields. In short, it plays an important role in many important fields such as chemical industry and medicine, and is one of the key chemical raw materials.

What are the physical properties of 4-Amino-3-Hydroxy-1-Naphthalenesulfonic Acid?

4-Amino-3-hydroxy-1-naphthalenesulfonic acid, this is an organic compound. Looking at its physical properties, it is mostly solid at room temperature. Its color is usually white to light yellow powder, with fine texture and tiny particles visible as far as the eye can see.
Smell it, usually without a significant odor, but under certain conditions, it may emit a faint odor, but it is not pungent or unpleasant.
Discuss solubility, which has a certain solubility in water. In hot water, the solubility is slightly higher, and the water molecules interact with the compound molecules, causing some molecules to disperse in water to form a uniform solution; in cold water, the solubility is relatively low, and only a small amount can be dissolved, or a little insoluble substance can be seen suspended in it.
Its melting point is within a certain range, and the specific value will vary due to factors such as purity. When heated near the melting point, the substance will gradually transform from a solid state to a liquid state. This process is accompanied by the absorption of energy and the change of intermolecular forces.
In addition, the density of 4-amino-3-hydroxy-1-naphthalenesulfonic acid is also one of its important physical properties. The density is moderate, and the specific value of the relative density is subject to experimental measurement. This density characteristic makes it have specific performance in many application scenarios, such as in solution or when mixed with other substances, it will produce corresponding distribution and behavior according to density differences.

What are the chemical properties of 4-Amino-3-Hydroxy-1-Naphthalenesulfonic Acid?

4-Amino-3-hydroxy-1-naphthalenesulfonic acid, which is one of the organic compounds. Its properties are white to light gray powder, soluble in water, and soluble in some organic solvents.
In terms of chemical properties, the compound contains both amino groups, hydroxyl groups and sulfonic acid groups. The amino group is basic and can react with acids under appropriate conditions to form salts. For example, when exposed to hydrochloric acid, the nitrogen atom in the amino group will combine with the hydrogen ion in the hydrochloric acid to form the corresponding ammonium salt. The hydroxyl group has a certain acidity and can participate in the esterification reaction. If it meets with acetic anhydride, the hydrogen atom in the hydroxyl group will be replaced by the acetyl group to form ester products. The sulfonic acid group is highly acidic and easy to ionize in water, giving the compound good water solubility and can react with metal ions to form sulfonates.
Its chemical properties are active and play an important role in many organic synthesis reactions. In the field of dye synthesis, it is often used as a key intermediate. With its special structure, dye molecules with specific colors and properties can be constructed through a series of chemical reactions, and then widely used in textile printing and dyeing industries, adding brilliant colors to fabrics. In the field of pharmaceutical synthesis, some of its reaction products may have potential biological activities, which may become an important basis for the development of new drugs and help humans fight diseases.
This compound exhibits unique chemical properties due to the interaction of functional groups in its structure, and has shown important value and application potential in many fields.

What are the synthetic methods of 4-Amino-3-Hydroxy-1-Naphthalenesulfonic Acid?

4-Amino-3-hydroxy-1-naphthalenesulfonic acid, the ancient synthesis method, many exquisite. The first method can be started from naphthalene. First, the naphthalenes are sulfonated, and the appropriate sulfonating agent, such as concentrated sulfuric acid or fuming sulfuric acid, is reacted at a suitable temperature and duration to obtain naphthalenesulfonic acid derivatives. This step requires attention to the control of the reaction conditions. If the temperature is too high, side reactions will occur, and if it is too low, the reaction will be slow.
Then, the resulting naphthalenesulfonic acid derivatives are nitrified. Choose a suitable nitrifying agent, such as mixed acid (mixture of nitric acid and sulfuric acid), to fine-tune the reaction The choice of nitrification check point is very critical, according to the localization effect of the naphthalene ring substituent, so that the nitro group precisely falls in the desired position, paving the way for the subsequent introduction of amino and hydroxyl groups.
Then reduce the nitro group to amino group, commonly used reducing agents such as iron filings and hydrochloric acid, or catalytic hydrogenation. This process also pays attention to the reaction conditions to avoid excessive reduction or other side reactions.
As for the introduction of hydroxyl groups, it can be achieved by suitable hydroxylation reagents, the activity of the naphthalene ring and the influence of existing substituents, and a suitable reaction path. In this process, the intermediate products of each step of the reaction need to be carefully separated and purified to ensure the purity of the final product. Each step is related to success or failure, and careful care and meticulous methods are required to achieve the synthesis of 4-amino-3-hydroxy-1-naphthalenesulfonic acid.

What is the price range of 4-Amino-3-Hydroxy-1-Naphthalenesulfonic Acid in the market?

4-Amino-3-hydroxy-1-naphthalenesulfonic acid, in the range of market prices, it is difficult to say for sure. Its price often varies due to various factors, including the price of raw materials, supply and demand, preparation process, quality, and even market fluctuations.
In the past, if the price of raw materials rose, the price of this acid would also rise. If the basic raw materials required for preparation are scarce, or the price rises due to changes in the origin or adjustment of production capacity, the cost of 4-amino-3-hydroxy-1-naphthalenesulfonic acid will increase, and its market price will also rise accordingly.
Furthermore, the balance between supply and demand has a huge impact on its price. If the market demand for it is strong, such as in some specific chemical fields, it is a key intermediate. If the demand increases sharply and the supply is difficult to continue for a while, the price will rise. On the contrary, if the demand is weak, the manufacturer may reduce the price to find a way out in order to promote sales.
The simplicity and advanced preparation process also affect its price. If a new process comes out, which can greatly increase production efficiency and reduce costs, there may be room for price reduction; and if the process is complex and costly, it is difficult to explore the price significantly.
Quality difference is also one of the price variables. High quality products, because they meet higher standards of testing and meet the strict needs of special fields, are often higher than ordinary quality products.
In summary, the exact price range of Ximing 4-amino-3-hydroxy-1-naphthalenesulfonic acid requires real-time observation of the raw material market, supply and demand dynamics and industry trends in order to have a more accurate understanding.