Disodium 8-(4-Methylphenylamino)-5-(4-(3-Sulphonatophenylazo)-1-Naphthylazo)Naphthalenesulphonate

This is disodium 8- (4-methylphenylamino) -5- (4- (3-sulfonylphenylazo) -1-naphthalene azo) naphthalene sulfonate, which has a wide range of uses. In the dyeing and weaving industry, it is often used as a dye. Because of its unique structure, it has a specific color and dyeing properties, which can make the fabric show a bright and long-lasting color. Taking the dyeing of silk, cotton and other fabrics as an example, it can rely on its own chemical properties to closely combine with the fabric fibers, making the dyeing effect uniform and firm, and it is not easy to fade after many washes.
In the field of ink manufacturing, this compound also plays a key role. The ink needs to have good tinting power and stability, and the color and chemical stability of the substance can just meet this demand. Adding it allows the ink to show clear and bright patterns and text when printed on paper and other materials, and it will not change color or fade after long-term storage.
Furthermore, in some scientific research experiments, because of its special molecular structure and optical properties, it can be used as an indicator or for the detection of specific substances. For example, in some chemical analysis experiments, based on the change of color when it reacts with a specific substance, it can judge the progress of the reaction or detect the presence or absence of a specific substance. In conclusion, disodium 8 - (4 - methylphenylamino) - 5 - (4 - (3 - sulfonyphenylazo) - 1 - naphthalene azo) naphthalene sulfonate has an indispensable use in many aspects of industrial production and scientific research experiments.

This is the chemical substance disodium 8- (4-methylphenylamino) -5- (4- (3-sulfobenzenazo) -1-naphthalene azo) naphthalene sulfonate. Its physical and chemical properties are as follows:
This compound is powdery in appearance or a specific color. Because its molecular structure contains many chromogenic groups, such as azo groups, it has a specific color. It has good solubility in water, because there are sulfonate groups in the molecule. This group is hydrophilic and can form hydrogen bonds with water molecules to improve its dispersion in water. The solubility in organic solvents may vary depending on the properties of the solvent. Polar organic solvents may have a certain solubility to them, but the solubility in non-polar organic solvents may not be good.
In terms of chemical stability, the azo bond in this substance is relatively active, and it may decompose or undergo structural changes when exposed to light, heat or some chemical reagents. Under light, the azo bond absorbs light energy, electrons transition, and the bond energy is weakened, which may break. When heated, the molecular thermal motion intensifies, which may also promote the breakage of azo bonds and other chemical bonds. And it is highly sensitive to acid-base environments. Under strong acidic or alkaline conditions, the molecular structure may change, such as sulfonate groups in strong acids or protonation, which affects its chemical and physical properties.
In terms of spectral properties, due to the existence of conjugated systems, there will be characteristic absorption peaks in the ultraviolet-visible spectral region. The π electrons in the conjugated system transition after absorbing specific wavelengths of light, which can be qualitatively and quantitatively detected by spectral analysis, which helps to identify and analyze the existence form and content of the substance in different environments.

The author of "Tiangong Kaiwu" is a masterpiece of ancient Chinese science and technology. However, today I am inquiring about the production method of "Disodium 8- (4-Methylphenylamino) -5- (4- (3-Sulphonatophenylazo) -1-Naphthylazo) Naphthalenesulphonate", which may not have been covered in "Tiangong Kaiwu" at that time. Because it is recorded in "Tiangong Kaiwu", it is mostly related to various traditional processes, such as agricultural mulberry, hardware smelting, ceramic firing, boat and car manufacturing, etc. It is not involved in the production method of chemical synthesis of fine organic compounds.
To know the production method of this compound today, it should be sought in modern organic chemistry classics and academic papers. Generally speaking, the synthesis of such azo compounds containing complex substituents may begin with basic aromatic compounds. For example, 4-methylaniline, benzene series containing sulfonic acid groups, naphthalene series, etc. are used as starting materials. After the diazotization reaction, the aromatic amine is converted into a diazo salt, which is a key step. The diazo salt has high activity and can be coupled with aromatic hydrocarbons containing active hydrogen. For example, after the diazotization of 4-methylaniline, it is coupled with a specific naphthalene derivative to form a structure containing a specific amino naphthalene group. After that, another benzene series containing the sulfonic acid group is also diazotized and further coupled with the resulting product to construct the desired complex azo structure. In the synthesis process, the reaction conditions, such as temperature, pH, and the proportion of reactants, need to be precisely controlled to ensure that the reaction proceeds according to the expected path and improve the purity and yield of the product. After synthesis, or through separation and purification, the target product with high purity "Disodium 8- (4-Methylphenylamino) -5- (4- (3-Sulphonatophenylazo) -1-Naphthylazo) Naphthalenesulphonate". This is the method of modern organic synthetic chemistry, which cannot be covered by Tiangongkai.

Fudisodium 8- (4-toluenylamino) -5- (4- (3-sulfophenylazo) -1-naphthyl azo) naphthalene sulfonate, this is a chemical substance. When using, many things need to be paid attention to.
Bearing the brunt of it, safety is of paramount importance. This substance may be toxic and irritating, touching the human body, such as skin, eyes, or causing discomfort, or even damage. Therefore, when taking it, be sure to wear protective equipment, such as gloves and goggles, to prevent accidents. If you come into contact accidentally, you should immediately rinse with plenty of water. If the situation is serious, you must seek medical attention immediately.
Furthermore, the method of storage is also exquisite. It should be placed in a dry, cool and well-ventilated place, away from fire sources and oxidants. Due to its chemical properties or poor stability, improper storage, or deterioration, it affects its effectiveness, and even worse, it may pose a safety hazard.
During use, precise operation is indispensable. It must be used strictly according to the established operating procedures and proportions. The wrong dosage may affect the reaction results, industrial production, or product quality is not up to standard; in experimental research, or the data may be inaccurate and the conclusion is wrong.
In addition, the impact on the environment should not be underestimated. After use, the residue should not be discarded at will, and should be properly disposed of according to regulations to prevent pollution of the environment. Because of its composition or harmful to ecological factors such as soil and water sources, it is necessary to follow environmental protection requirements and dispose of it correctly.
In short, the use of disodium 8- (4-toluenylamino) -5- (4- (3-sulfophenylazo) -1-naphthyl azo) naphthalene sulfonate, safety, storage, operation and environmental protection must be treated with caution, and must not be negligent.

I think this "Disodium 8- (4-Methylphenylamino) -5- (4- (3-Sulphonatophenylazo) -1-Naphthylazo) Naphthalenesulphonate" is a chemical substance. However, it is not easy to know the approximate market price.
Because the price of chemical substances is often affected by many factors. First, the cost of producing this substance includes the price of raw materials, the simplicity of the production process, and the amount of energy consumption. If raw materials are rare and difficult to find, or the production process is extremely complex, high-end equipment and fine operation are required, the cost must be high, and the price is not cheap.
Second, the state of market supply and demand. If the demand for this product is strong and the supply is limited, the so-called "rare is expensive", the price will rise; on the contrary, if the market is oversupplied, the merchant may reduce the price in order to sell.
Third, quality also affects the price. Those with high purity and high quality have a higher price than those with ordinary quality.
Furthermore, prices may vary from merchant to merchant and from region to region. In busy cities, the price may be slightly higher due to high operating costs; and in remote places, if there is local production and low cost, the price may be slightly lower.
However, I do not have the exact data, it is difficult to determine the price. Or you need to look up the chemical product trading platform and consult the chemical raw material supplier to get more accurate price information.