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Home Products 2-Amino-5-Naphthol-7-Sulphonic Acid

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2-Amino-5-Naphthol-7-Sulphonic Acid

Specifications

HS Code	391310
Name	2-Amino-5-Naphthol-7-Sulphonic Acid
Chemical Formula	C10H9NO4S
Molar Mass	239.25 g/mol
Appearance	Light yellow to brown powder
Solubility In Water	Slightly soluble
Acidic Nature	Contains sulphonic acid group, acidic
Melting Point	Decomposes
Odor	Odorless
Stability	Stable under normal conditions
Hazard Class	Irritant

As an accredited 2-Amino-5-Naphthol-7-Sulphonic Acid factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

Packing & Storage

Packing	2 - Amino - 5 - Naphthol - 7 - Sulphonic Acid in 1 - kg bags for chemical packaging.
Storage	2 - Amino - 5 - Naphthol - 7 - Sulphonic Acid should be stored in a cool, dry place. Keep it away from heat sources, ignition sources, and direct sunlight. Store in a well - ventilated area, preferably in a tightly - sealed container to prevent moisture absorption and exposure to air, which could lead to decomposition or degradation of the chemical.
Shipping	2 - Amino - 5 - Naphthol - 7 - Sulphonic Acid is shipped in sturdy, chemically resistant containers. It's carefully packed to prevent breakage & exposure. Strict safety protocols ensure it's transported in compliance with hazardous chemical regulations.

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General Information

Historical Development

2 - Amino - 5 - Naphthol - 7 - Sulphonic Acid, also chemical products. Trace back to its source, those who studied it at the beginning, tried their best to explore its nature. In the past, all researchers groped in the darkness, hoping to obtain the true chapter of this product. Begin with simple methods, tried many times to find the law of its sexual change.
Years change, and there are many who study it, and the law is also more refined. Everyone learns with each other, and they have made progress in the art of synthesis and the method of purification. Or because of the difficulty of finding raw materials, or the lack of good skills, those who are determined will not give up.
After years of study, this product is now very useful in various fields of industry and scientific research. Its development process depends on the unremitting efforts of its ancestors. Later generations should follow its ambition and explore the unknown again, hoping to make this product more perfect.

Product Overview

2-Amino-5-naphthol-7-sulfonic acid is a particularly important chemical substance. Its unique properties, color is white, powder state, and slightly soluble in water.
This compound has a wide range of uses and is a key intermediate in the field of dye industry. Through a specific chemical reaction, it can produce many bright-colored and fastness dyes, which are used in fabric dyeing, etc., to make fabrics colorful and long-lasting.
In terms of synthesis process, it needs to go through multiple rigorous processes. From the initial raw materials, it is gradually synthesized through fine proportions, specific temperatures and reaction times. However, the synthesis process also faces challenges, such as harsh reaction conditions, high requirements for equipment and operation, and a slight difference in the pool will affect the purity and yield of the product.
2-amino-5-naphthol-7-sulfonic acid, with its characteristics and uses, occupies an important position in the chemical industry, and still has broad research and development space in the future.

Physical & Chemical Properties

2-Amino-5-naphthol-7-sulfonic acid, this substance is also often referred to as a specific abbreviation. Its physical and chemical properties are unique. Looking at its form, at room temperature, it is mostly crystalline, with pure white matter, just like the first snow in winter, clean and flawless.
When it comes to solubility, in water, it is soluble but not wanton, and can only achieve a limited state of dissolution, just like a spirit dancing in water, enough is enough. As for chemical activity, amino groups, hydroxyl groups and sulfonic acid groups coexist in its molecular structure, like a delicate chemical stage. The amino group is alkaline, while the hydroxyl group and the sulfonic acid group are acidic. The coexistence of this acid and alkali makes it like an active dancer of chemical reactions, which can dance with many substances and generate multiple chemical changes. In the field of organic synthesis, with its unique properties, it is often an important raw material, just like an indispensable cornerstone in the hands of skilled craftsmen, helping to build a more complex and delicate building of organic compounds.

Technical Specifications & Labeling

For 2-amino-5-naphthol-7-sulfonic acid, its process specifications and identification (product parameters) are the key. The process specifications of this product are related to the preparation method. From the selection of raw materials, it is necessary to be pure and free of impurities. To the reaction conditions, such as temperature, pressure, and duration, it must be precisely controlled, and there must be no difference. If the temperature is too high, the product is easy to decompose. If it is too low, the reaction will be slow or difficult to achieve the expected product.
The identification (product parameters) cannot be ignored. The appearance color, purity geometry, and impurity content are all important parameters to characterize this product. The appearance should be in a specific color state to distinguish the quality of authenticity. The high purity determines its wide range of uses and excellent quality. The impurity content is minimal, and it is accurate. All these process specifications and labels (product parameters) are the important rules for measuring 2-amino-5-naphthol-7-sulfonic acid, which cannot be ignored.

Preparation Method

To prepare 2 - Amino - 5 - Naphthol - 7 - Sulphonic Acid, the raw materials and production process, reaction steps and catalytic mechanism are the key. First take naphthol sulfonic acid as the initial raw material, add an appropriate amount of ammonia agent, control the temperature in a specific range, so that the ammonization reaction is orderly. In this process, accurately grasping the temperature and reaction time is the key to obtaining high-purity products. After the reaction is completed, the impurities are removed by a delicate separation method, and the essence is retained.
In terms of catalytic mechanism, choose the appropriate catalyst to speed up the reaction and improve its efficiency. For example, a special metal complex can lower the reaction barrier and promote the rapid conversion of raw materials. And a feedback mechanism should be constructed to monitor the reaction process in real time, and fine-tune the parameters according to the results to ensure that the reaction is stable and excellent. In this way, the high-quality 2-Amino-5-Naphthol-7-Sulphonic Acid product can be obtained by the fine grinding process and strict supervision of each step.

Chemical Reactions & Modifications

The research on the transformation and sexual modification of 2-amino-5-naphthol-7-sulfonic acid in a certain day is really the focus of our research.
In the past, the reaction of this substance was mostly based on the old method, and the results obtained may not be good. The reaction conditions are harsh, it takes a long time, and the yield is not ideal. As for the physical properties, there is also room for improvement, such as solubility, stability, etc., which can be improved.
At this time, we are trying our best to find a new way to optimize the reaction. Thinking of catalyzing with new agents, or adjusting the temperature and pressure, in the hope of increasing the stress and increasing the yield. In the improvement of physical properties, it is intended to add other substances to combine with it, hoping to increase its solubility and strengthen its stability. In this way, 2-amino-5-naphthol-7-sulfonic acid can be used in the field of daily use to develop its growth and be more practical. We should make unremitting exploration, hope to achieve success, and contribute to the progress of daily chemical.

Synonyms & Product Names

2-Amino-5-naphthol-7-sulfonic acid has many aliases and many trade names. Its aliases are: gamma acid, which is quite commonly used in the industry and is well known to many chemical people. There are also many trade names, and the trade names given by different manufacturers may vary, but they all refer to this compound.
Covers can be used in the preparation of dyes, pigments and other products because of their wide range of uses in the chemical industry. Therefore, different manufacturers may use different trade names to highlight their product characteristics. The existence of aliases is also convenient for communication. The same substance is referred to by different names among peers to meet the needs of various situations.

Safety & Operational Standards

2-Amino-5-Naphthol-7-Sulphonic Acid is a chemical substance. It is safe to operate, and it is essential.
This compound has certain chemical properties, and the operation is difficult to follow. The first person, the operator, must be familiar with the nature of this substance. Its nature may be sensitive to certain components, such as in case of open fire, high temperature, or strong reaction, so it is forbidden to burn in the environment, and the control degree and degree are appropriate.
Furthermore, when using this object, it must be used as an instrument. Or use a spoon or measuring device to seek accuracy and avoid it. If you accidentally wash the skin, quickly wash it with a lot of water, and ask for it according to the method. If it gets into the eyes, you need to wash it immediately, not a little bit.
Store it in a place where it is dry and well-ventilated, and prevent it from being damaged. The package is also dense to prevent it from being connected to air, moisture, etc.
All those who operate it in this way are trained by it, and its dangers are known. In this way, it can ensure safety and security, and the operation is orderly. In the process of chemical research or life, it is necessary to avoid all kinds of problems, so as to achieve the results of the period.

Application Area

2-Amino-5-naphthol-7-sulfonic acid, this compound has a wide range of uses. In the field of dyes, it can be used as a key intermediate. After delicate chemical reactions, many dyes with bright colors and good fastness can be derived, dyeing fabrics, leather, etc., with bright and lasting colors. In medicine, its unique chemical structure may have potential biological activity, which is expected to become the basis for the development of new drugs and find new ideas for treating diseases. It is also used in pigment preparation to give pigments good performance and paint exquisite paintings. Its application in the fields of industry and scientific research is constantly expanding and deepening, like a shining star, illuminating the way forward in many fields, and silently contributing its unique power to the development and progress of mankind.

Research & Development

Since modern times, chemical refinement has resulted in the emergence of new substances. 2 - Amino - 5 - Naphthol - 7 - Sulphonic Acid has gradually emerged in the field of chemical research and development.
We have studied and observed its physical and chemical properties. Its structure is unique, with amino groups, naphthol and sulfonic acid groups, which interact with each other and give it a specific quality. In the reaction, the activity of amino groups can combine with many reagents to expand its application.
Furthermore, look at its development trend. With the evolution of science and technology, it is used in dyes, medicine and other industries increasingly. The field of dyes relies on its structure to generate color and become a brilliant color; in the field of medicine, with its characteristics, new agents may be developed to benefit health.
However, the road to research is not smooth. To better understand its nature and expand its use, it is still necessary for all researchers to study together and explore unremittingly. In the future, they can do their best to promote the progress of chemistry and benefit the world.

Toxicity Research

The industry of chemical industry is related to people's livelihood, but the investigation of poisons in it cannot be ignored. In this sentence, 2 - Amino - 5 - Naphthol - 7 - Sulphonic Acid, the study of its toxicity is quite important.
Observe the experience of various substances in the past, the nature of poisons may be hidden in use or revealed in touch. 2 - Amino - 5 - Naphthol - 7 - Sulphonic Acid The quality of its molecules may contain toxic bases. In the context of experiments, observe its response to living things. If it enters the body, it may disrupt its physiological order.
If it seeps through the skin, or is absorbed by the mouth and nose, it can be harmful to the body. At the microscopic level of the cell, it may disturb its metabolism, or break its structure. Looking at the test of animals, it can be seen that the disease is in the body, or it is sluggish, or it is sick. Therefore, studying its toxicity and carefully understanding it can be the basis for protection, ensuring the safety of practitioners, and avoiding everyone from poisoning. This is the heavy responsibility of chemical researchers.

Future Prospects

2-Amino-5-Naphthol-7-Sulphonic Acid, it is also the thing that is transformed. We are the people who have been transformed, each of its properties and uses, but the heart has not yet been developed. There may be a new way in the chemical industry. Undiscovered, or can be the nature of its own, in dyes, dyes, etc., a new situation. We hope that we can use our in-depth research to explore its capabilities, so that this thing can be used. It is expected that in the future, it will be able to be used in the forest of work, the color of the color, and help the people of all walks of life. This is the person I have studied in the chemical industry. It is also the hope of the undeveloped.

Where to Buy 2-Amino-5-Naphthol-7-Sulphonic Acid in China?

As a trusted 2-Amino-5-Naphthol-7-Sulphonic Acid manufacturer, we deliver: Factory-Direct Value: Competitive pricing with no middleman markups, tailored for bulk orders and project-scale requirements. Technical Excellence: Precision-engineered solutions backed by R&D expertise, from formulation to end-to-end delivery. Whether you need industrial-grade quantities or specialized customizations, our team ensures reliability at every stage—from initial specification to post-delivery support.

Frequently Asked Questions

As a leading 2-Amino-5-Naphthol-7-Sulphonic Acid supplier, we deliver high-quality products across diverse grades to meet evolving needs, empowering global customers with safe, efficient, and compliant chemical solutions.

What are the main uses of 2-Amino-5-Naphthol-7-Sulphonic Acid?

2-Amino-5-naphthol-7-sulfonic acid, also known as J acid, is an important intermediate in organic synthesis and is widely used in dyes, medicine and other fields.
In the dye industry, its position is pivotal. It can be used as a coupling component, and a wide variety of azo dyes can be prepared through delicate chemical reactions. Such dyes have bright color and good fastness, and are widely used in fabric dyeing and printing processes. For example, when dyeing natural fiber fabrics such as cotton, linen, and silk, dyes made from 2-amino-5-naphthol-7-sulfonic acid can give fabrics brilliant colors, and after many washes and lighting, the colors are still fresh.
In the field of medicine, it also has important value. As a key pharmaceutical intermediate, it participates in a variety of drug synthesis. With its unique chemical structure, specific functional groups can be introduced through a series of reactions, laying the foundation for the synthesis of drugs with specific pharmacological activities. For example, for some drugs used to treat specific diseases, 2-amino-5-naphthol-7-sulfonic acid is an indispensable starting material or key intermediate in its synthesis path, which has a profound impact on the efficacy of drugs.
In addition, in the field of organic synthetic chemistry research, 2-amino-5-naphthol-7-sulfonic acid is often used as a research object to explore novel organic synthesis methods and reaction mechanisms due to its unique structure. Through in-depth exploration of its chemical properties and reactivity, researchers have promoted the continuous development of organic synthetic chemistry, providing ideas and possibilities for the development of more efficient and green synthesis routes.

What are the physical properties of 2-Amino-5-Naphthol-7-Sulphonic Acid?

2-Amino-5-naphthol-7-sulfonic acid, also known as J acid, is an important member of organic compounds. Its physical properties are unique and crucial in the chemical industry.
This substance is a white to light gray crystalline powder under normal conditions, and it is fine in appearance. The solubility in water is quite considerable, and it can be moderately dissolved in water to form a uniform solution. This property makes it easy to disperse and react in many chemical operations involving water-soluble systems.
In terms of melting point, it is about 175-180 ° C. When the temperature gradually rises to this point, the substance gradually melts from the solid state to the liquid state. This melting point characteristic is of great significance in the separation and purification of chemical production, and can be effectively separated from other substances by precise temperature control.
Furthermore, its stability is also worth mentioning. Under general environmental conditions, it has a certain chemical stability. When encountering specific chemical substances such as strong oxidants, strong acids, and strong bases, it is easy to chemically react, and the structure or properties will change accordingly. Therefore, when storing and using, special attention should be paid to avoid contact with such substances.
In the chemical industry, 2-amino-5-naphthol-7-sulfonic acid is often used as an intermediate for dyes and pigments. Due to its unique physical properties, it can provide a specific structural basis for dye synthesis, and help dyes obtain the required color, fastness and other properties. In short, the accurate grasp of its physical properties is crucial to the efficient and stable development of chemical production.

What are the chemical properties of 2-Amino-5-Naphthol-7-Sulphonic Acid?

2-Amino-5-naphthol-7-sulfonic acid, its color is white to gray, it is an organic compound, and it is widely used in the fields of dyes and medicine.
This substance is acidic. Because it contains a sulfonic acid group, it can ionize hydrogen ions in water, which can neutralize and react with bases to generate corresponding salts and water.
Its amino group is basic and can react with acids to form salts. This acid-base hermaphroditism allows it to participate in many acid-base related chemical reactions.
2-Amino-5-naphthol-7-sulfonic acid contains phenolic hydroxyl groups, which are active and easy to be oxidized. If left in the air for a long time or in contact with strong oxidants, oxidation reactions will occur, causing its color and properties to change.
It can also undergo substitution reactions. Due to the uneven distribution of electron cloud density on the naphthalene ring, specific positions (such as phenolic hydroxyl groups or amino groups) are easily attacked by electrophilic reagents, resulting in substitution and the formation of new organic compounds, which is of great significance for the synthesis of complex organic molecules.
In the dye industry, it is often used as an intermediate. After a series of chemical reactions, a variety of dyes with bright colors and excellent performance can be prepared. In the field of pharmaceutical synthesis, its unique structure can participate in the construction of molecules with specific biological activities, providing key raw materials for the development of new drugs.

What are the precautions for 2-Amino-5-Naphthol-7-Sulphonic Acid in the production process?

In the production process of 2-amino-5-naphthol-7-sulfonic acid, all matters need to be treated with caution.
The first raw material selection must be selected with good quality. The quality of the raw material is related to the purity and quality of the product. If the raw material contains too many impurities, the reaction will be blocked and the product will be impure, which will affect the subsequent application.
The control of the reaction conditions is crucial. Temperature must be precisely controlled. If the temperature is too high, or the reaction will be too fast, causing side reactions and damaging the quality of the product; if the temperature is too low, the reaction will be slow, take a long time, and reduce the production efficiency. The pressure cannot be ignored. Appropriate pressure can promote the reaction. If the pressure is improper, the reaction may not occur as expected.
Furthermore, the reaction time also needs to be planned reasonably. If the time is too short, the reaction is not completed, and the product yield is low; if the time is too long, it will only increase energy consumption, and may cause product deterioration.
The stirring process should not be underestimated. Uniform stirring can make the reactants fully contact, accelerate the reaction process, and ensure that the reaction is carried out uniformly. If the stirring is uneven, the concentration of the local reactants is too high or too low, which is not conducive to the normal development of the reaction.
The cleanliness of the production environment is also the main point. Dust and impurities are mixed in, which may affect the reaction or
The skills and experience of the operator also affect the production. Skilled operation, can respond to emergencies in a timely manner and ensure the smooth production.
Post-processing process is related to product purification and refining. Appropriate methods can effectively remove impurities, improve product purity, and meet different application needs.
All of these are important items that cannot be ignored in the production process of 2-amino-5-naphthol-7-sulfonic acid, and need to be handled carefully to ensure smooth production and excellent products.

What are the factors affecting the price fluctuation of 2-Amino-5-Naphthol-7-Sulphonic Acid market?

2-Amino-5-naphthol-7-sulfonic acid, the market price fluctuates, and its influencing factors are many.
The first to bear the brunt is the price change of raw materials. The synthesis of this acid requires specific raw materials. If the origin of the raw materials changes, or production is reduced due to climate, policies, etc., resulting in a shortage of supply, the price will rise, and the cost of this acid will also increase, thereby driving market price fluctuations.
Furthermore, market demand is a key factor. If at a certain time, related industries such as dyes, medicine, etc., have a large increase in demand for them, and the supply is in short supply, the price will rise; conversely, if demand is sluggish and overproduction occurs, the price will fall.
Technological innovation also has an impact. If a new synthetic technology is born, it can improve production efficiency and reduce costs, and a large number of products flood into the market, the price will be suppressed; however, if the technology encounters bottlenecks, the production difficulty will increase, the cost will increase, and the price may rise.
Policies and regulations should not be underestimated. With stricter environmental protection policies, manufacturers may need to invest more funds in environmental protection facilities, which will increase costs and affect prices. Changes in tax policies, or reductions or increases, will also affect product costs and prices.
In addition, factors such as international situation and exchange rate fluctuations will also indirectly affect the market price of this acid. International trade frictions may lead to restrictions on imports and exports, affecting supply and demand; exchange rate fluctuations affect the cost of imported raw materials and the income of exported products, which in turn affects market prices.