Pyridine-3-Sulfonic Acid

Lingxian Chemical

Specifications

HS Code	717028
Name	Pyridine-3-Sulfonic Acid
Chemical Formula	C5H5NO3S
Molar Mass	159.16 g/mol
Appearance	White to off - white solid
Solubility In Water	Soluble
Melting Point	288 - 293 °C
Pka Value	ca. 1.5
Odor	Odorless
Stability	Stable under normal conditions

Packing & Storage

Packing	Pyridine - 3 - Sulfonic Acid: 500g packaged in a sealed, chemical - resistant plastic bag.
Storage	Pyridine - 3 - Sulfonic Acid should be stored in a cool, dry, well - ventilated area. Keep it away from heat sources, flames, and incompatible substances such as strong oxidizing agents. Store in a tightly - sealed container to prevent moisture absorption and potential degradation. Ensure proper labeling for easy identification and safety compliance.
Shipping	Pyridine - 3 - Sulfonic Acid is shipped in well - sealed containers, typically suitable for chemical transportation. Precautions are taken to prevent spills, with proper labeling indicating its chemical nature and handling requirements.

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General Information

Historical Development

"The Historical Development of Pyridine-3-Sulfonic Acid"
In the field of chemical industry, new products have emerged, and pyridine-3-sulfonic acid is also one of them. At first, the world did not know about this product, but later it was explored by various scholars, and its properties gradually became clear.
In the past, chemists studied the changes of substances, and made great efforts in heterocyclic compounds. After years of work, the preparation method of pyridine-3-sulfonic acid was obtained. At first, the process was simple and the yield was quite low, but scholars were unremitting. With the evolution of science and technology, the preparation method has become more and more exquisite, the yield has gradually increased, and it is also widely used.
Since its inception, it has made great achievements in the pharmaceutical, materials and other industries. In the past, the preparation was difficult, but now the scale is getting bigger and bigger, and it is an important product in the chemical industry. Therefore, the development of pyridine-3-sulfonic acid is the fruit of the wisdom of all wise men and the sign of scientific and technological progress.

Product Overview

"Overview of Pyridine-3-Sulfonic Acid Products"
Fukopyridine-3-sulfonic acid is a kind of organic compound. Its shape or crystalline powder, white and pure in quality. With unique chemical properties, it is often a key raw material in many chemical reactions and industrial processes.
The preparation method is based on the path of chemical synthesis. With a specific starting material, according to the fine reaction steps, through catalysis, condensation and other reactions, this product can be obtained.
In the field of industrial application, pyridine-3-sulfonic acid has a wide range of uses. In the field of pharmaceutical chemistry, it can be used as an intermediate for drug synthesis and assist in the development of new pharmaceuticals. In the field of materials science, it can also participate in the preparation of special materials to improve the properties of materials.
And its stability is good, easy to store and transport, so it is becoming increasingly important in the chemical industry, laying a solid foundation for the birth of many chemical products.

Physical & Chemical Properties

Pyridine-3-Sulfonic Acid is a unique compound. Its physical and chemical properties are worth studying.
Viewing its shape, at room temperature, it is mostly solid, colored or nearly white, and has a fine texture. Its melting point is fixed, and it begins to melt at a specific temperature, which is one of the characteristics to judge its purity.
When it comes to solubility, it has a certain solubility in polar solvents such as water. This property is related to the polar groups in its molecular structure. The polar sulfonic acid group matches the water molecule, causing it to disperse in water.
Its chemical properties are also active. Sulfonic acid groups are acidic and can neutralize with bases to form corresponding salts. In the field of organic synthesis, it is often a key raw material and can participate in a variety of reaction pathways. With ingenious design, it can be converted into compounds with unique functions. It has potential applications in the fields of medicine and materials. It is also an indispensable substance in chemical research.

Technical Specifications & Labeling

The process specification and identification (product parameters) of this product of Pyridine-3-Sulfonic Acid are the key. Its process specification needs to follow a rigorous method. The selection of raw materials should be based on purity, and the ratio must be accurate. The temperature and pressure of the reaction also need to be finely adjusted, and there should be no difference of millimeters. The reaction time should also be in accordance with the regulations to ensure the quality of the product.
As for the identification (product parameters), its characteristics, purity, impurity content, etc., all need to be clearly marked. The characteristics need to be detailed about their color and state; the purity should be expressed with precise values; the impurity content should be carefully studied and strictly controlled, and the limits of various impurities should be listed. In this way, the essence of the process specification and identification (product parameters) of Pyridine-3-Sulfonic Acid can be obtained to become a good product.

Preparation Method

This product of Pyridine-3-Sulfonic Acid is related to the raw materials and production process, reaction steps and catalytic mechanism.
To make it, take pyridine as the base material, supplemented by a suitable sulfonating agent, such as concentrated sulfuric acid. In a specific reaction vessel, control the appropriate temperature and pressure. The temperature should be stable in a certain range to prevent the reaction from being too aggressive or too slow. The pressure must also be adapted, both of which are related to the reaction rate and product purity.
In the reaction step, first mix pyridine with the sulfonating agent, stir well, and make it fully contact. At first, the reaction is slightly slow, and gradually intensifies. It is necessary to closely observe the reaction process and fine-tune the conditions in a timely manner.
Catalytic mechanism, or a specific catalyst can be introduced to accelerate the reaction. This catalyst can reduce the activation energy of the reaction and make the reaction easier to occur. After this operation, Pyridine-3-Sulfonic Acid can be obtained, but it also needs to be refined and purified later to obtain high-purity products.

Chemical Reactions & Modifications

Pyridine-3-Sulfonic Acid is also a chemical compound. The modification of its chemical properties is what we want to study.
In the past, we have sought this compound, but the method of reversing it is often not good. The method or propagation is expensive and difficult, and the efficiency is not satisfactory.
Today, we are exhausted and seeking new products. Reforming the new products and using the new products, hoping to obtain good results. If we do it with the new method, the rate of reversal will increase, and the efficiency will also increase. And its performance is more controllable, and the resulting product quality is higher.
This modification method may be of great use in the production of Pyridine-3-Sulfonic Acid. It can make its production more efficient and more efficient, and it is beneficial for work and research.

Synonyms & Product Names

Pyridine-3-Sulfonic Acid (Pyridine-3-Sulfonic Acid), its synonym and trade name, are also well known to our chemical researchers. Looking at ancient books, although the name of this thing is not directly stated, it is inferred from chemical reasons that its synonym may be obtained due to structural characteristics, preparation methods, and uses.
It is in the field of chemistry, or has another name to be used in different scenes. Or according to its molecular structure, to show its uniqueness, and it becomes a different name. As for the trade name, it is related to the needs of the market. Merchants established this name in order to recognize its characteristics and expand its sales.
Although it is difficult to find details in ancient books, with today's chemical knowledge, traces of its name change can be observed. The study of aliases and trade names helps to clarify its position in all things in the chemical industry, and is beneficial to research and development, production and sales. It is to study the aliases and trade names of this thing, which should not be ignored.

Safety & Operational Standards

"Code for Safety and Operation of Pyridine-3-Sulfonic Acid Products"
Fukopyridine-3-sulfonic acid is also a chemical product. Its characteristics are different, and it is related to safety and operation regulations, which cannot be ignored.
In the realm of safety, the first protection. Those who use this object, in front of suitable protective clothing, such as acid and alkali-resistant robes, wear tough gloves, and eye protection glasses are also indispensable to prevent inadvertent contact, causing damage to the skin and eyes. And this object may have a peculiar smell, and it is important to operate in a well-ventilated place. If it is in a closed place, its gas will accumulate, which may hurt the breathing.
As for the operation specifications, the material must be taken according to the precise measurement, and cannot be increased or decreased. When stirring, the rate should be stable, do not make violent, to prevent splashing. When heating, you need to be especially careful, control its temperature, step by step, do not let overheating, cause accidents. The reaction process, carefully observe the situation, observe its changes, if there is any abnormality, quickly implement countermeasures.
In addition, the storage of this thing should be in a cool and dry place, away from fire and heat sources, and classified and placed. Do not coexist with the taboo things to prevent their chemical reactions from causing harm. After use, the residue should be disposed of according to regulations, and should not be disposed of at will, so as not to pollute the environment.
In short, the operation of pyridine-3-sulfonic acid, in accordance with safety and operation regulations, is essential to ensure personal safety and everything goes smoothly.

Application Area

Pyridine-3-Sulfonic Acid (Pyridine-3-Sulfonic Acid) is also a chemical product. Its application field is wide and important. In the field of medicine, it is the basis for making good medicines, and it can help the structure of medicines to make them more efficient and effective, and heal the body of patients. In the field of agrochemical, it can be used as a pesticide material to protect crops, control pests, and ensure a good harvest. And in the dyeing and weaving industry, it is the help of dyes, adding the color of fabrics, making them more colorful and better quality. Looking at its use, it has extraordinary power in many fields, and has made great contributions to the progress of industry, agriculture, medicine, etc. It is actually an important part of chemical production and is related to the prosperity of people's livelihood.

Research & Development

Yu Taste is dedicated to the research of pyridine-3-sulfonic acid. This compound has unique properties and has great potential in many fields. I dedicated myself to studying its synthesis method, striving to improve the process and improve the yield. At the beginning, I tried several traditional paths, but the results were not as expected. After searching ancient books and learning from the strengths of various families, I found another way. After repeated trials, I finally obtained a method, which can significantly improve the yield. And in addition to the purity of the product, considerable progress has also been made.
Looking at its application prospects, it can be used as a key intermediate in medicinal chemistry to help the development of new drugs; in materials science, it may also be the cornerstone of the construction of novel materials. I know that this research is still in the beginning, and the road ahead is long. However, I must persevere and unremitting exploration, hoping to open up a wider world for the development of pyridine-3-sulfonic acid, and contribute to the academic and industry.

Toxicity Research

The toxicity of pyridine-3-sulfonic acid is a matter to be investigated. Looking at this substance, the molecular structure is unique, or it has different chemical properties.
Try to test various substances to observe the change in contact with other substances. In biological experiments, put it into the microscopic insects, plants and trees, and observe its state in detail. The movement of the microorganisms slows down, the vitality decays, or the physiological order is disturbed by pyridine-3-sulfonic acid; the color and length of plants and trees also change abnormally, the leaves gradually wilt, and the growth of stems is hindered, which blocks the biochemical path of this substance in its body.
Also look at its transformation in the environment, exposed to air and water, and see its decomposition. In water, it gradually dissolves, but the decomposition is not fast, or it accumulates in water, causing aquatic diseases.
In summary, pyridine-3-sulfonic acid is toxic and has an impact on organisms and the environment. It should not be ignored in the follow-up.

Future Prospects

Nowadays, there is pyridine-3-sulfonic acid, which has great potential for development in the field of chemistry. It has a wide range of uses and can be used in various synthesis reactions, contributing to the preparation of many fine chemicals.
Looking at the future, science and technology are changing, and the research on pyridine-3-sulfonic acid will become more and more in-depth. It may be possible to develop novel synthesis paths to increase yield and reduce costs. At the application level, it is expected to expand to emerging fields, such as advanced materials, biomedicine, etc.
With time, it can tap more potential and contribute to the progress of industry and the improvement of people's livelihood. Its future is shining brightly, full of hope, and the future is grand.

Frequently Asked Questions

What are the main uses of Pyridine-3-Sulfonic Acid?

Pyridine-3-sulfonic acid is an important organic compound with a wide range of uses. In the field of medicine, this compound is a key intermediate. The synthesis of many drugs depends on it as a starting material or reaction intermediate. When preparing specific antibacterial drugs, pyridine-3-sulfonic acid can be converted into a molecular structure with antibacterial activity through a series of chemical reactions, helping to fight various bacterial infections.
In the dye industry, pyridine-3-sulfonic acid also plays an indispensable role. It can be used to synthesize dyes with excellent performance. Such dyes are brightly colored and have good fastness. They are widely used in textiles, printing and dyeing and other fields to give long-lasting and brilliant colors to fabrics.
In terms of pesticides, pyridine-3-sulfonic acid is an important component in the synthesis of some high-efficiency pesticides. With its unique chemical structure, pesticide products with strong lethality to pests and little impact on the environment can be prepared, effectively protecting the growth of crops and reducing the infestation of diseases and pests.
In addition, in the preparation process of some special chemicals, pyridine-3-sulfonic acid can participate in many complex chemical reactions due to its special functional group properties, providing a key chemical basis for the preparation of high-performance materials, additives, etc., so as to meet the needs of different industrial fields for special chemicals.

What are the physical properties of Pyridine-3-Sulfonic Acid?

Pyridine-3-Sulfonic Acid (Pyridine-3-Sulfonic Acid) is one of the organic compounds. Its physical properties are unique and worth studying.
First of all, its appearance, under room temperature, pyridine-3-sulfonic acid is often white to light yellow crystalline powder state, this state is pure and uniform texture, when viewed in sunlight, there is a fine luster flickering, just like the stars scattered.
As for the melting point, the melting point of pyridine-3-sulfonic acid is about 350 ° C. The melting point is so high, because of its strong intermolecular force, the molecules are closely arranged, and a higher temperature is required to break its inherent structure and make the solid state into a liquid state. This property has a great impact on the process of separation, purification and molding in chemical production.
Solubility is also an important physical property. Pyridine-3-sulfonic acid is soluble in water and rapidly diffuses in water to form a uniform solution. Due to the strong hydrophilicity of sulfonic acid groups, it can form hydrogen bonds with water molecules and attract each other. And it also has a certain solubility in polar organic solvents such as methanol and ethanol, but in non-polar organic solvents such as benzene and n-hexane, the solubility is very small and almost insoluble. This difference in solubility provides a key basis for the selection of separation, extraction and reaction medium.
Furthermore, pyridine-3-sulfonic acid has hygroscopicity. Placed in the air, it can absorb moisture and cause its own deliquescence. This characteristic warns that when storing, it is necessary to pay attention to the dry environment to prevent quality changes.
In addition, pyridine-3-sulfonic acid has high stability when it is in the solid state. However, under extreme conditions such as high temperature, strong acid, and strong alkali, its structure may change, causing chemical properties to change. This physical property and chemical property are closely related, and together determine its application scope and process requirements in the fields of chemical industry, medicine, materials, etc.

Is Pyridine-3-Sulfonic Acid Chemically Stable?

The stability of the chemical properties of pyridine-3-sulfonic acid is related to many chemical reactions and industrial uses, which is the focus of research. Looking at this compound, its stability is affected by many factors.
Structurally, the existence of the pyridine ring gives it a certain stability. The pyridine ring is aromatic and formed by a closed conjugate system, and the electron cloud is evenly distributed. This structural property makes the pyridine part of the pyridine-3-sulfonic acid relatively stable, and it is not easy to open the ring or disintegrate the structure easily due to general chemical reactions.
The introduction of sulfonic acid groups (-SO-H) adds variables to its properties. The sulfonic acid group is strongly acidic, and it is easy to ionize hydrogen ions in aqueous solution, which is acidic. Although this acidity is active in some acid-base reactions, it does not directly cause its structure to be unstable. Under common conditions, the basic structure of sulfonic acid is stable, and the chemical bond connected to the pyridine ring is also firm, which can resist the attack of general chemical reagents.
At room temperature and pressure, without special chemical reagents or extreme conditions, pyridine-3-sulfonic acid can maintain its chemical structure unchanged for a long time, reflecting good stability. However, under extreme conditions such as strong oxidants or high temperatures, the stability may be challenged. Strong oxidants can oxidize sulfonic acid groups and even affect the pyridine ring; high temperatures may cause the vibration of intramolecular chemical bonds to intensify, triggering decomposition or rearrangement reactions.
In short, under the usual chemical operating environment and mild conditions, the chemical properties of pyridine-3-sulfonic acid are relatively stable, which can meet many chemical synthesis, industrial production and other needs. However, when specific reaction conditions are involved, it is necessary to fully consider its structure and property changes to ensure that the reaction is accurate and controllable.

What are the synthesis methods of Pyridine-3-Sulfonic Acid?

There are various ways to synthesize pyridine-3-sulfonic acid. First, it can be prepared by the sulfonation reaction of pyridine and fuming sulfuric acid. In this reaction, pyridine is co-heated with a sufficient amount of fuming sulfuric acid, and the sulfate group replaces the hydrogen atom in the third position of the pyridine ring to obtain pyridine-3-sulfonic acid. During operation, attention should be paid to the control of the reaction temperature. If it is too high, the side reactions will increase, and if it is too low, the reaction rate will be delayed. Usually, the temperature is controlled in a suitable range, so that the reaction can proceed smoothly and the yield is better.
Second, using 3-aminopyridine as the starting material, pyridine-3-sulfonic acid can be obtained by diazotization and Sandmeier First, 3-aminopyridine is reacted with a diazotization reagent composed of sodium nitrite and acid to form a diazonium salt. This step of the reaction must be carried out at low temperature to prevent the decomposition of the diazonium salt. Then, the diazotide is reacted with bisulfite and other reagents through Sandmeier to achieve the introduction of sulfonic acid groups and obtain the target product. Although this path is slightly complicated, the selectivity is quite high and the product purity is also good.
Furthermore, using niacin as raw material, pyridine-3-sulfonic acid can also be synthesized through specific steps. Niacin is first converted into the corresponding derivative, and then the sulfonic acid group is introduced through suitable reaction conditions. This approach needs to be familiar with the properties of niacin derivatives and ingeniously design the reaction process to achieve the purpose of synthesis. All synthesis methods have their own advantages and disadvantages, and it is necessary to consider the availability of raw materials, cost, product purity and other factors according to actual needs, and choose the appropriate one.

What is the price range of Pyridine-3-Sulfonic Acid in the market?

The price of pyridine-3-sulfonic acid in the market varies for many reasons. In terms of past market conditions, its price fluctuates widely.
This compound is widely used in the chemical industry, such as as as a raw material for medicine, pesticides, dyes, etc. The difference in use causes its demand to vary, which is the key to affecting the price. If the demand for pharmaceutical research and development or pesticide production increases sharply, the price may rise; on the contrary, if the demand is weak, the price may fall.
The cost of its production also affects the price. The price of raw materials, the complexity of the production process, and the amount of energy consumption are all related to it. The price of pyridine-3-sulfonic acid will also rise due to the high price of raw materials or the increase in costs due to complicated processes.
The situation of supply and demand in the market has a significant impact on the price. If the supply is abundant and the demand does not meet expectations, the supply will exceed the demand, and the price will drop; if there is a shortage of supply, strong demand, and the supply is in short supply, the price will tend to rise.
Based on past trading conditions and market dynamics, the price range of pyridine-3-sulfonic acid is roughly between tens of yuan and hundreds of yuan per kilogram. However, this is only a rough figure, and the actual price may vary from the stated range due to the rapid changes in the current market. To know the exact price, consult the relevant chemical product suppliers and market trading platforms in detail to obtain an accurate estimate.