4-(4-Aminophenylazo)Benzenesulfonic Acid

Lingxian Chemical

Specifications

HS Code	381671
Chemical Formula	C12H11N3O3S
Molar Mass	277.30 g/mol
Appearance	Orange - red powder
Solubility In Water	Slightly soluble
Solubility In Organic Solvents	Soluble in some polar organic solvents like ethanol
Melting Point	Decomposes before melting
Ph In Solution	Acidic due to the sulfonic acid group
Color In Solution	Orange - red
Stability	Stable under normal conditions, but may decompose on exposure to strong oxidizing agents
Hazardous Nature	May be harmful if swallowed, inhaled or in contact with skin

Packing & Storage

Packing	100 - gram pack of 4-(4 - Aminophenylazo)Benzenesulfonic Acid in sealed chemical - grade bag.
Storage	4-(4 - Aminophenylazo)Benzenesulfonic Acid should be stored in a cool, dry place, away from heat and direct sunlight. Keep it in a well - sealed container to prevent moisture absorption and contact with air, which could potentially lead to degradation. Store separately from oxidizing agents and incompatible substances to avoid chemical reactions.
Shipping	4-(4 - Aminophenylazo)Benzenesulfonic Acid should be shipped in well - sealed, corrosion - resistant containers. Label containers clearly. As it's a chemical, ensure compliance with all relevant transportation regulations to guarantee safe transit.

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4-(4-Aminophenylazo)Benzenesulfonic Acid

General Information

Historical Development

The historical evolution of 4- (4-aminobenzene azo) benzenesulfonic acid is related to the development of chemical industry. In the past, chemistry was first developed, and the exploration of such compounds was still shallow. Later, with the improvement of technology, researchers gradually focused on this.
In the early days, limited by cognition and means, synthesis was difficult and output was scarce. However, scientific researchers worked tirelessly to improve the production method, so that its output gradually increased. In modern times, with the rise of industry, the demand for this product increased, so it promoted its large-scale production.
Its application has also narrowed and widened, beginning to be used for simple experiments, and later involved in dyes, medicine and other fields. The historical evolution of this compound is a testament to the development of chemistry. From ignorant exploration to skillful application, it all depends on the efforts of researchers of all dynasties.

Product Overview

4- (4-Aminobenzene-azo) benzenesulfonic acid is a unique chemical substance. Its color may be distinct, and its properties have a specific reaction. This substance has a delicate structure and is cleverly combined with amino, benzenazo and benzenesulfonic acid groups. It is widely used in the field of chemistry. It can be applied to the production of dyes to give fabrics a brilliant color; it may also be used as a key reagent in some analytical experiments to help researchers identify the properties of substances. The preparation method requires precise steps, suitable raw materials, and careful reaction processes. Looking at its characteristics, stability and activity, it maintains a delicate balance, and under suitable conditions, exhibits unique chemical properties, adding a touch of brilliance to both chemical research and practical applications.

Physical & Chemical Properties

The physical and chemical properties of 4- (4-aminobenzeneazo) benzenesulfonic acid can be investigated. Looking at its shape, it is often in the shape of a powder, with a light yellow color, which is observed by the eye. In terms of solubility, it is slightly soluble in water, but less soluble in organic solvents, which is related to the interaction between its molecular structure and the solvent.
In terms of its chemical properties, it has azo groups and sulfonic acid groups. Azo groups are active and can initiate many reactions or cause structural changes under suitable conditions. Sulfonic acid groups give it a certain acidity, which can be dissociated in a specific environment, affecting its chemical behavior.
And its stability is also a consideration. It is relatively stable at room temperature and pressure. In case of high temperature, strong light or specific chemical reagents, there is a risk of decomposition. All these physical and chemical properties are important for practical application and further research.

Technical Specifications & Labeling

Technical Specifications and Labeling of 4- (4-Aminobenzene Azo) Benzenesulfonic Acid (Product Parameters)
For Fu 4- (4-Aminobenzene Azo) Benzenesulfonic Acid, the technical specifications need to be carefully studied. When preparing, the raw materials must be well selected and the ratio is accurate. The reaction conditions are also critical, and factors such as temperature and duration must be strictly controlled to ensure the purity and quality of the product.
In terms of labeling, the product parameters should be clearly presented. The name is accurately marked with "4- (4-Aminobenzene Azo) Benzenesulfonic Acid", and its physical properties, such as color and morphology, should also be described in detail. And the key parameters such as chemical properties and purity values should be clearly marked, so that the user can see at a glance, in order to meet the needs of various applications. In this way, the main meaning of this chemical technical specification and labeling is also obtained.

Preparation Method

The preparation method of 4- (4-aminobenzeneazo) benzenesulfonic acid is related to the raw materials and production process, reaction steps, and catalytic mechanism. Take an appropriate amount of aniline, dissolve it with dilute acid, cool it to a specific low temperature, and add sodium nitrite solution dropwise to form a diazonium salt. In addition, prepare an alkaline solution of p-aminobenzenesulfonic acid, slowly pour into the above diazonium salt solution, control the temperature and stir to promote its coupling reaction. After the reaction is completed, adjust the pH value to cause the product to precipitate, filter, wash, and dry to obtain it. In this preparation, the ratio of raw materials, temperature, and pH value are all key, and precise control can increase the purity and yield of the product. In the catalytic mechanism, the alkaline environment helps the ionization of p-aminobenzenes

Chemical Reactions & Modifications

Fu 4- (4 - Aminophenylazo) Benzenesulfonic Acid, the study of its chemical and reverse properties is essential. The chemical and reverse properties of this compound often involve diazotization and coupling and reverse properties. Diazotization requires careful control of components, such as temperature and acidity.
Due to its properties, or due to the ease of substituents, the inductivity is low. For example, different substituents or affect its solubility and characterization. and it may have different reactivity in different solubilities.
In order to clarify its chemical and reverse properties, it is necessary to study various factors in order to clarify, so that the phase domain can be used well, and the development of research can be promoted to explore more possible utilities.

Synonyms & Product Names

4 - (4 -Aminobenzene azo) benzenesulfonic acid, which is widely used in the chemical industry. There are many synonyms, and in different classics and industries, it is called p-aminobenzene azo p-benzenesulfonic acid, or other names. As for the trade name, it also varies depending on the manufacturer and the market.
In my research, it often appears under different names. The reason is due to industry habits and regional differences. Although the ancient chemical industry did not have a complete system like today, craftsmen and wise people also investigated and named various substances. Today's 4 - (4 - aminobenzene azo) benzenesulfonic acid, if its name is traced back to its origin, or the legacy of traditional nomenclature can be seen, its structure and characteristics have different names. This all reflects the evolution of chemical substance names. In research and application, clear synonyms and trade names can be accurate and smooth.

Safety & Operational Standards

4- (4-Aminobenzene-azo) benzenesulfonic acid safety and operating specifications
Fu 4- (4-aminobenzene-azo) benzenesulfonic acid is a common substance in chemical research. In its experimental operation and research process, the essence of safety is the first to bear the brunt.
As far as the operating environment is concerned, a well-ventilated place must be selected. Cover this substance or volatilize harmful gases. Good ventilation can quickly disperse it to prevent it from accumulating indoors and harming researchers. If operated in a closed space, poisonous gases are difficult to discharge and accumulate, which will harm the human body.
As for the operating specifications, researchers should abide by the procedures. When taking it, it is necessary to use clean and accurate equipment to prevent impurities from mixing in, damage its purity, and maintain the correct dosage. When weighing, pay attention and be careful. According to the needs of the experiment, every detail must be investigated.
Furthermore, protective gear is indispensable. When operating, in front of protective clothing, this resistant substance splashes on the body, preventing the skin from touching it. You also need to wear goggles to prevent it from entering the eyes and damaging the eyes. Wear gloves, but the material of gloves must be suitable and anti-penetration.
The method of storage is also important. It should be stored in a dry and cool place, protected from heat and light. Due to high temperature, light or its chemical properties change, or react, lose its original nature, or be dangerous.
The disposal of waste should not be ignored. After the experiment, the residual 4- (4-aminobenzene-azo) benzene sulfonic acid and related waste should not be discarded at will. It must be collected in accordance with regulations, sorted and properly disposed of, so as to avoid polluting the environment and cause harm to all parties.
In short, the research and operation of 4- (4-aminobenzene-azo) benzene sulfonic acid are complementary to each other. It is the criterion of the researcher and should not be slack a little to ensure the smooth experiment, the safety of personnel and the environment.

Application Area

4- (4 -Aminobenzene azo) benzenesulfonic acid has a wide range of application fields. In the dyeing and weaving industry, it can be used as a dye to dye fabrics. The color is bright and lasting, making the fabric radiant and adding color to clothing and home textiles. In the field of printing, it can be used as a raw material for inks. The printing is clear, the color is full, and the pictures and texts are exquisite. In analytical chemistry, it can be used as an indicator, and by means of its color change, it can measure the properties and quantities of substances and help chemical analysis to be accurate. Therefore, 4- (4 -Aminobenzene azo) benzenesulfonic acid is important in many industries, related to the efficiency and quality of production and scientific research.

Research & Development

Yu Taste is dedicated to the research and development of 4- (4-aminobenzene-azo) benzenesulfonic acid. This compound has unique properties and a wide range of applications.
Beginning to explore its synthesis method, through various attempts, to observe the influence of raw material ratio and reaction conditions. In the regulation of temperature and pH, all are carefully done to obtain high-purity products.
Then, study its properties. Observe its color, solubility and chemical stability, and record it in detail. And consider its application potential in different fields, such as dyes, medicine, etc.
After long-term research, the synthesis technology has improved, and the quality of the product has also been improved. However, the road ahead is still long, and many unknowns remain to be solved. In the future, we will continue to explore this compound in more fields, contributing to scientific development and promoting continued progress in this field.

Toxicity Research

The nature of the chemical compounds is related to people's livelihood. It is quite important to study the toxicity of 4- (4-aminobenzene-azo) benzenesulfonic acid today.
This substance also appears or takes a certain form, and may be used in industry, scientific research, etc. However, the study of toxicity should not be ignored. After many tests, its effect on biological organisms has been explored. It is observed in experimental animals, or it can cause changes in physiological functions. On the way into the body, inhalation by mouth, nose, and skin contact are possible.
Its toxicity attacks, or disturb the normal metabolism of cells, causing damage to tissues and organs. Although the appearance of all its toxicity has not been detailed, only clues have emerged, indicating its potential danger. Therefore, those who use this product should be cautious and study its properties carefully to prevent it from developing, so as to ensure the safety of the person and the environment.

Future Prospects

The product of Fu 4- (4-aminobenzene azo) benzenesulfonic acid has been researched in this world, but it will still be developed in the future. This product is unique and is expected to explore new paths in the fields of dyes and medicine.
Looking at the future, it may be possible to achieve a simpler and more efficient environment in the synthesis method, reduce its cost and increase its yield. And in the performance optimization, it can explore the wonders of its combination with other substances and give it new capabilities. In the field of application, it may be able to go deep into medical research and development to help the diagnosis and treatment of diseases; in the dyeing and weaving industry, create more colorful and lasting dyes.
Our researchers should be enterprising, poor in their reasoning, and expand their use, hoping that this product will shine in the future, contribute its power to the progress of the world, and promote the prosperity of all industries, so as to open up a bright scene.

Frequently Asked Questions

What is the chemical structure of 4- (4-aminophenylazo) benzenesulfonic acid?

The chemical structure of 4- (4-hydroxybenzaldehyde) benzaldehyde acid is a class of organic compound structures. Among its structures, it contains functional groups such as benzene ring, aldehyde group and carboxyl group.
The benzene ring is a six-membered carbon ring with a conjugated system and shows special stability. In 4- (4-hydroxybenzaldehyde) benzaldehyde acid, there is a diphenyl ring structure. One of the benzene rings is connected with a hydroxyl group, and the hydroxyl group is the power supply group, which can increase the electron cloud density of the benzene ring and affect its chemical activity.
aldehyde-CHO, an active functional group, can participate in many reactions, such as oxidation to carboxyl groups, or addition reactions with nucleophiles. In this compound, there are dialdehyde groups, which are respectively connected to different benzene rings, and each aldehyde group can react according to the characteristics of the aldehyde group.
Furthermore, carboxyl-COOH is acidic, can ionize hydrogen ions, can neutralize with bases, and can also participate in esterification reactions. In the structure of this compound, the presence of carboxyl groups gives it acidic properties.
Overall, the chemical structure of 4- (4-hydroxybenzaldehyde) benzaldehyde acid is formed by the interconnection of benzene ring, aldehyde group and carboxyl group. The interaction of functional groups determines its unique chemical properties and reactivity. The complexity of its structure also makes it potentially useful and valuable in organic synthesis, medicinal chemistry and other fields.

What are the main uses of 4- (4-aminophenylazo) benzenesulfonic acid?

4- (4-aminopyridine) pyridine sulfonic acid has a wide range of main uses.
In the field of medicine, this is a key intermediate. The synthesis of many drugs often relies on it as a starting material. For example, some nervous system drugs, 4- (4-aminopyridine) pyridine sulfonic acid can be introduced into the molecular structure of the drug through specific chemical reactions, giving the drug unique pharmacological activity and helping to regulate the function of the nervous system. It is of great significance for the treatment of neurological diseases such as multiple sclerosis.
In the field of materials science, it also plays an important role. It can be used to prepare functional polymer materials. With its special chemical structure, it can react with other monomers to form polymers with specific properties. Such polymers may have excellent electrical conductivity, optical properties or thermal stability, and have great potential in electronic devices, optical materials, etc. When manufacturing organic Light Emitting Diodes (OLEDs), it may optimize the properties of materials and improve the luminous efficiency and stability of devices.
In the field of agricultural chemistry, 4- (4-aminopyridine) pyridine sulfonic acid can be used to develop new pesticides. Due to its unique chemical properties, it may have special inhibitory or killing effects on certain pests and pathogens, and is more environmentally friendly and efficient than traditional pesticides, providing new ways and means for crop pest control.
In summary, 4- (4-aminopyridine) pyridine sulfonic acid has shown important uses and broad application prospects in many fields such as medicine, materials and agricultural chemistry.

What are the physical properties of 4- (4-aminophenylazo) benzenesulfonic acid?

4- (4-aminopyridine) pyridine sulfonic acid is a kind of organic compound. Its physical properties are quite unique and are related to the properties of many chemical substances.
In terms of its appearance, 4- (4-aminopyridine) pyridine sulfonic acid is often in solid form, but its exact appearance may vary slightly depending on the preparation method and purity. Generally speaking, pure or white to off-white powder, with fine and uniform texture, which is the characteristic of the naked eye.
When it comes to solubility, the substance exhibits different behaviors in different solvents. In water, it has a certain solubility, but the solubility is not very high. This is because the molecular structure has both hydrophilic amino and sulfonic acid groups and hydrophobic pyridine ring structures, so the solubility in the aqueous phase is limited. In some organic solvents such as dimethyl sulfoxide (DMSO), N, N-dimethylformamide (DMF), its solubility is relatively good. This solubility characteristic is crucial in chemical synthesis, separation and purification and related experimental operations. The melting point of
is one of the key indicators to measure the thermal stability of the substance. It has been experimentally determined that 4 - (4-aminopyridine) pyridine sulfonic acid has a specific melting point range, which is a comprehensive reflection of the intermolecular forces and crystal structures. When heated to this temperature range, the substance will transform from solid to liquid, and this transformation process has a profound impact on its application in high temperature environments.
In addition, the density of 4 - (4-aminopyridine) pyridine sulfonic acid is also an important part of its physical properties. Compared with similar organic compounds, its density is within a specific range. This density value is of practical significance for the storage, transportation, and chemical processes involving volume and mass conversion.
To sum up, the physical properties of 4- (4-aminopyridine) pyridine sulfonic acid, such as appearance, solubility, melting point, density, etc., play a key role in determining its application in chemical research, industrial production and related fields. Only by understanding and mastering these properties can we better utilize and study them.

What is the synthesis method of 4- (4-aminophenylazo) benzenesulfonic acid?

To make 4 - (4 - hydroxyacetophenone) benzaldehyde, the following ancient method can be used.
First take an appropriate amount of p-methoxyacetophenone, place it in the reactor, add an appropriate amount of solvent, such as dichloromethane, to fully dissolve it. Then, slowly add an appropriate amount of aluminum trichloride, which is the catalyst for the Fu-gram reaction, and must be handled with caution to prevent accidents. After the addition of aluminum trichloride, the reaction system should be maintained in a low temperature environment, about 0 ° C or so, and it needs to be continuously stirred to promote a uniform reaction.
When stirring at this low temperature, slowly add p-methoxybenzoyl chloride dropwise, and the speed of dropwise addition should be slow, not too fast, so as not to cause the reaction to be too violent. After the dropwise addition is completed, let the temperature of the reaction system gradually rise to room temperature, and continue to stir for several hours, so that the reaction can be fully carried out. When the reaction is completed, quench the reaction with an appropriate amount of ice water. At this time, the reaction system can be seen that there is precipitation. Filter the mixture, collect the filter cake, and then wash the filter cake with an appropriate amount of organic solvent to remove impurities. After washing, dry the filter cake to obtain 4- (4-methoxyacetophenone) benzaldehyde.
However, this product is not ultimately required, and further removal of methoxy groups is required. The resulting 4- (4-methoxyacetophenone) benzaldehyde is placed in another reactor, and an appropriate amount of hydrobromic acid is added, which is the reagent for demethylation. The reaction system needs to be heated to an appropriate temperature, about 100 ° C, and the reaction continues to be refluxed for several hours. After the reaction is completed, the reaction solution is cooled to room temperature, then diluted with an appropriate amount of water, and then extracted with an organic solvent to collect the organic phase. The organic phase is dried with anhydrous sodium sulfate to remove the moisture. After that, the dried organic phase is distilled to remove the organic solvent to obtain a crude product.
Finally, the crude product is recrystallized, and an appropriate solvent, such as ethanol-water mixed solvent, is selected. After recrystallization, pure 4- (4-hydroxyacetophenone) benzaldehyde can be obtained. The whole process requires fine operation and attention to the control of each reaction condition to obtain satisfactory results.

What are the precautions for using 4- (4-aminophenylazo) benzenesulfonic acid?

4 - (4 -Hydroxybenzaldehyde) benzenesulfonic acid should pay attention to many things during use.
This is a chemical agent, and proper operating practices must be followed. First, safety protection is essential. When exposed, appropriate protective equipment must be worn, such as gloves, goggles and lab clothes. Because it may be irritating to the skin, eyes and breathing props, if unprotected, it may cause damage. For example, accidentally splashing into the eyes can cause severe pain and damage, so protection is the first priority.
Second, storage should not be ignored. It should be placed in a cool, dry and well-ventilated place, away from fire sources and oxidants. This chemical may be flammable. If mixed with oxidants, it may cause a violent reaction, which may cause fire or explosion.
Third, the use environment should be well ventilated. During operation, harmful gases may be volatilized, and good ventilation can be discharged in time to reduce the concentration of harmful substances in the air and protect the health of operators.
Fourth, the exact dosage and operation steps should be strictly followed. Because it is a fine chemical, the dosage and operation sequence can have a significant impact on the reaction result and product quality. For example, improper dosage, or incomplete reaction, impure product; wrong operation steps, or side reactions, resulting in products that do not meet expectations.
Fifth, waste disposal should also be in compliance. After use, the remaining substances and waste should be disposed of in accordance with relevant laws and regulations and should not be discarded at will to avoid polluting the environment.