2-Amino-5-Chlorobenzenesulfonic Acid

Linshang Chemical

Specifications

HS Code

697709

Chemical Formula C6H6ClNO3S
Molecular Weight 207.63
Appearance usually white to off - white solid
Solubility soluble in water to some extent
Melting Point specific value needs experimental determination
Boiling Point specific value needs experimental determination
Odor odorless or faint characteristic odor
Ph In Solution acidic due to sulfonic acid group
Stability stable under normal conditions, but may react with strong oxidants
Flash Point specific value needs experimental determination
Density specific value needs experimental determination

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

Packing & Storage
Packing 25 - kg bag packaging for 2 - amino - 5 - chlorobenzenesulfonic acid.
Storage 2 - amino - 5 - chlorobenzenesulfonic acid should be stored in a cool, dry, and well - ventilated area. Keep it away from heat sources, flames, and direct sunlight. Store in tightly - sealed containers to prevent moisture absorption and contact with air, which could potentially lead to degradation. Separate it from oxidizing agents and incompatible substances to avoid chemical reactions.
Shipping 2 - amino - 5 - chlorobenzenesulfonic acid should be shipped in well - sealed, corrosion - resistant containers. Ensure proper labeling indicating its chemical nature. Transport under conditions that prevent exposure to heat, moisture, and incompatible substances.
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2-Amino-5-Chlorobenzenesulfonic Acid 2-Amino-5-Chlorobenzenesulfonic Acid
General Information
Where to Buy 2-Amino-5-Chlorobenzenesulfonic Acid in China?
As a trusted 2-Amino-5-Chlorobenzenesulfonic 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-Chlorobenzenesulfonic 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-chlorobenzenesulfonic Acid?
2-Amino-5-chlorobenzenesulfonic acid has a wide range of uses. In the dye industry, this is a crucial intermediate. Through delicate chemical reactions, a variety of dyes with bright colors and good fastness can be synthesized based on this. These dyes can be widely used in many fields such as fabric dyeing, giving fabrics a colorful appearance and satisfying people's pursuit of textile aesthetics.
In the field of medicine, it also shows unique value. In the synthesis of some drugs, 2-amino-5-chlorobenzenesulfonic acid can act as a key raw material and participate in the construction of complex drug molecules. Through professional pharmaceutical technology, it helps to synthesize drugs with specific pharmacological activities and escort human health.
In addition, in the preparation of some fine chemical products, 2-amino-5-chlorobenzenesulfonic acid is also indispensable. For example, the production of some special additives, with the help of their special chemical structure and properties, can effectively improve the performance of additives, thereby improving the quality and performance of related industrial products. In short, 2-amino-5-chlorobenzenesulfonic acid plays a pivotal role in many aspects of industrial production, and is of great significance to promote the development of related industries.
What are the physical properties of 2-amino-5-chlorobenzenesulfonic Acid?
2-Amino-5-chlorobenzenesulfonic acid is one of the organic compounds. It has the following physical properties:
In appearance, it is often in the state of white to light yellow crystalline powder, which is easy to identify and operate.
In terms of solubility, it has a certain solubility in water. Edge water is a common solvent, and this property allows it to play a role in many aqueous reactions or separation processes. However, in organic solvents, such as ethanol, ether, etc., the solubility is relatively limited. This difference reflects its interaction with different solvent molecules.
The melting point is quite high, about 280-290 ° C. A higher melting point indicates that the intermolecular force is strong, the structure is relatively stable, and a higher energy is required to transform it from solid to liquid.
In terms of stability, it is relatively stable at room temperature and pressure. However, when encountering strong oxidizing agents, it is prone to oxidation reactions, because some groups in the structure have certain reductivity. At the same time, in a strong acid and alkali environment, hydrolysis or other chemical reactions may occur, and the structure may change.
Hygroscopicity is also one of its characteristics, which will absorb moisture in the air. This requires attention to moisture-proof storage, otherwise it will affect the quality and performance.
In terms of odor, there is usually no special odor, or only a very weak odor, which has little impact on the odor of the use environment.
The above physical properties are of great significance for their application in chemical, pharmaceutical and other fields. For example, due to its solubility and stability characteristics, it can be used as an intermediate in drug synthesis; according to the melting point characteristics, the purity can be determined by melting point in the purification process.
What are the chemical properties of 2-amino-5-chlorobenzenesulfonic Acid?
2-Amino-5-chlorobenzenesulfonic acid is one of organic compounds. It is acidic and can dissociate in water, release hydrogen ions, neutralize and react with bases to form corresponding salts.
Looking at its structure, both the amino group and the sulfonic acid group are reactive. The amino group is basic and can react with acids to form salts; the sulfonic acid group is highly acidic and can participate in a variety of sulfonation reactions.
In the electrophilic substitution reaction, the amino group is an ortho-and para-site group, and the sulfonic acid group is an meta-site group, resulting in the complex electrophilic substitution reaction activity and localization effect of the compound. This substance can be used as an intermediate for dyes, medicines and pesticides.
In the field of dye synthesis, with its structural characteristics, chromophore groups can be introduced through a series of reactions to obtain dyes with diverse colors. In pharmaceutical synthesis, with its reactivity, or as a key raw material for constructing specific structures of pharmaceutical molecules.
However, its chemical properties are also significantly affected by reaction conditions. Changes in temperature, pH, solvent and other conditions may cause differences in reaction direction and product. For example, under high temperature or strong acid conditions, side reactions such as hydrolysis of sulfonic acid may occur.
2-Amino-5-chlorobenzenesulfonic acid is rich in chemical properties and has important uses in the field of organic synthesis. However, when used, the reaction conditions need to be carefully adjusted to achieve the desired reaction results.
What is the production method of 2-amino-5-chlorobenzenesulfonic Acid?
The preparation method of 2-amino-5-chlorobenzenesulfonic acid has been based on chemical synthesis methods throughout the ages. There are probably several ways to prepare it.
First, 2-chloro-5-nitrobenzenesulfonic acid is used as the starting material. The raw material is first placed in a suitable reaction vessel, and an appropriate amount of reducing agent, such as iron powder, sodium sulfide, etc., is added to carry out the reduction reaction under specific temperature and pressure conditions. In this process, the nitro group is gradually converted into an amino group to produce 2-amino-5-chlorobenzenesulfonic acid. However, in this method, the reducing agent used will produce a large amount of waste residue, which has a great impact on the environment, and the subsequent treatment is quite complicated.
Second, take 2-aminobenzenesulfonic acid as the starting material, and add chlorinated reagents such as chlorine gas and thionyl chloride in a specific reaction system. Under the action of catalysts such as ferric chloride, chlorination occurs at a specific position on the benzene ring, and then the target product 2-amino-5-chlorobenzenesulfonic acid is generated. Although the product can be obtained in this way, the reaction conditions need to be precisely controlled, otherwise it is easy to produce side reactions, which will affect the purity and yield of the product.
Third, take aniline as the starting material, first sulfonate the aniline, and introduce a sulfonic acid group. Select suitable sulfonating reagents, such as concentrated sulfuric acid, fuming sulfuric acid, etc., and react at an appropriate temperature to obtain aniline sulfonic acid. Then, the chlorination reaction is carried out to introduce chlorine atoms. This method has relatively many steps, and attention needs to be paid to the optimization of the reaction conditions in each step to ensure the smooth progress of each reaction and the quality of the product.
There are many methods for preparing 2-amino-5-chlorobenzenesulfonic acid, each with advantages and disadvantages. In actual production, it is necessary to comprehensively consider the cost of raw materials, reaction conditions, environmental protection requirements and many other factors, and carefully select suitable production methods to achieve efficient, environmentally friendly and economical production purposes.
2-amino-5-chlorobenzenesulfonic Acid in storage and transportation
2-Amino-5-chlorobenzenesulfonic acid is commonly used in chemical products. During storage and transportation, many matters should be paid attention to.
First words storage, this substance should be placed in a cool, dry and well ventilated place. The cover is vulnerable to environmental factors due to its nature, humid environment, or cause it to be damp and deteriorate, so drying is necessary. And if the temperature is too high, it may also cause its chemical changes, endangering the quality, and it is appropriate to store it in a cool place. Furthermore, it needs to be stored separately from oxidants, acids, bases, etc. This is because of its chemical activity. If it is mixed with the above substances, it may cause severe chemical reactions, such as explosion and other risks.
As for transportation, the packaging must be tight. Choose suitable packaging materials to ensure that there is no leakage during transportation. The transportation vehicle should also be clean and no other substances that may react with it should be left. When driving, avoid high temperatures and open flames. Stop on the way, and also need to choose a safe place, away from fire sources and crowded places. Transport personnel should also be familiar with its characteristics and know emergency methods, in case of leakage, etc., they can quickly and properly dispose of it to avoid major disasters.
In general, the storage and transportation of 2-amino-5-chlorobenzenesulfonic acid must adhere to the regulations of suitable environment, classified storage, tight packaging, and safe transportation, so as to ensure its safety and ease of use.