Disodium 4-[4-[5-(2-Bromoprop-2-Enoylamino)-2-Sulfonato-Phenyl]Azo-3-Methyl-5-Oxo-4H-Pyrazol-1-Yl]-2,5-Dichloro-Benzenesulfonate

This is the name of the chemical substance Disodium 4 - [4 - [5 - (2 - Bromoprop - 2 - Enoylamino) -2 - Sulfonato - Phenyl] Azo - 3 - Methyl - 5 - Oxo - 4H - Pyrazol - 1 - Yl] -2,5 - Dichloro - Benzenesulfonate. To clarify its chemical structure, it should be analyzed by chemical methods. This name is complicated and contains the name of many groups.
"Disodium" means that this compound is a disodium salt. " 4 - [4 - [5 - (2 - Bromoprop - 2 - Enoylamino) -2 - Sulfonato - Phenyl] Azo - 3 - Methyl - 5 - Oxo - 4H - Pyrazol - 1 - Yl] -2, 5 - Dichloro - Benzenesulfonate "," 4 - "2,5 -" and other numbers, are the table group in the benzene ring structure and other positions.
wherein, "4 - [4 - [5 - (2 - Bromoprop - 2 - Enoylamino) -2 - Sulfonato - Phenyl] Azo - 3 - Methyl - 5 - Oxo - 4H - Pyrazol - 1 - Yl]" part, containing pyrazole ring structure. " 5 - (2 - Bromoprop - 2 - Enoylamino) ", with 2 - bromoprop - 2 - enylamino group attached at the 5th position of the pyrazole ring;" 2 - Sulfonato - Phenyl "has a sulfonic acid group at the 2nd position of the epiphenyl ring, and the two are connected by azo group (" Azo ").
and" 2,5 - Dichloro - Benzenesulfonate ", show that the benzene ring has chlorine atoms at the 2nd and 5th positions, and this benzene ring is connected with a sulfonic acid group and forms a sodium salt.
In summary, the compound has a complex structure, consisting of a pyrazole ring containing a specific substituent and a benzene ring containing chlorine and sulfonic acid groups connected by an azo group, and forms a disodium salt state.

This compound is named 4- [4- [5- (2-bromopropyl-2-enylamino) -2-sulfonylphenyl] azo-3-methyl-5-oxo-4H-pyrazole-1-yl] -2,5-dichlorobenzene sulfonate sodium. Its application field is quite wide.
In the printing and dyeing industry, this compound can be used as a reactive dye. With its unique chemical structure, it can form a stable covalent bond with fiber molecules, showing excellent dyeing properties in the coloring process of cotton, linen, silk and other fiber fabrics.
In the field of leather manufacturing, it can be used as a leather dye. It can combine with proteins in leather to give rich color to leather, and at the same time enhance the light resistance, wear resistance and water resistance of leather, and improve the quality and added value of leather.
In the ink industry, this compound can be used as an ink colorant. In the printing process, it can accurately present various colors, and has good weather resistance and chemical resistance to ensure long-term color stability of printed matter. It is widely used in packaging printing, publishing and printing and other fields.
In the paper industry, it can act as a paper dye. It can make paper obtain a uniform and long-lasting color, meet the dyeing needs of different paper products such as writing paper and wrapping paper, and improve the aesthetics and practicality of paper products.
This compound has crucial applications in many industrial fields where dyeing and coloring are required due to its unique chemical structure and properties.

This is called disodium 4- [4- [5- (2-bromopropyl-2-enylamino) -2-sulfophenyl] azo-3-methyl-5-oxo-4H-pyrazole-1-yl] -2,5-dichlorobenzene sulfonate. Its physical properties are as follows:
In terms of view, it is often in a solid state, or in the form of powder or crystal. Due to the characteristics of its chemical structure, intermolecular forces make it tend to exist in this condensed state.
When it comes to solubility, because it contains sulfonate groups, which are hydrophilic functional groups, it may have a certain solubility in water, but the specific solubility is also affected by many factors such as temperature and solvent purity. Usually, heating can promote its solubility in water. In polar organic solvents, or there is also a certain solubility. However, in non-polar organic solvents, the solubility may be very low.
Its melting point is also an important physical property, but the experimental data are not detailed, so it is difficult to describe it accurately. However, it is speculated from the structure that there are many conjugated systems and polar groups in the molecule, and the intermolecular force is strong, and the melting point may be quite high.
Furthermore, its color is also impressive. In view of the azo-containing structure, such structures often give compounds their color. This substance may be of a specific color, dark or light, depending on the specific chemical environment. It can be used for dyes and other purposes, depending on this color characteristic.
Its density, boiling point and other physical properties are also factors that characterize the properties of this substance, but it is difficult to determine for the time being because there is no detailed data. However, the density is probably similar to that of common organic salts, and the boiling point or decomposition makes it difficult to observe the conventional boiling phenomenon because it is heated or decomposed first.

To prepare the product named Disodium 4- [4- [5- (2 - Bromoprop - 2 - Enoylamino) -2 - Sulfonato - Phenyl] Azo - 3 - Methyl - 5 - Oxo - 4H - Pyrazol - 1 - Yl] -2,5 - Dichloro - Benzenesulfonate, the method is as follows:
First, all kinds of raw materials need to be prepared, and those 2 - Bromopropyl - 2 - enyl chloride, aromatic amines containing sulfonic acid groups, pyrazole derivatives containing methyl and carbonyl groups, and benzenesulfonic acid derivatives containing dichloro substitutions should be selected with good texture
First, the 2-bromopropyl-2-enoyl chloride and the aromatic amine containing the sulfonic acid group meet in a suitable reaction vessel, add an appropriate amount of acid binding agent, such as triethylamine, and control the reaction temperature in a mild range, about 20 to 30 degrees Celsius, so that the two are acylated to generate 5- (2-bromopropyl-2-enoamide) -2-sulfonic aniline derivatives Then, take this derivative and the methyl- and carbonyl-containing pyrazole derivative, use an appropriate diazo salt as a coupling reagent, in an alkaline medium, the temperature is maintained at ten to twenty degrees Celsius, and the coupling reaction is carried out. The reaction process is carefully regulated to obtain 4- [4- [5- (2-bromopropyl-2-enylamino) -2-sulfonic-phenyl] azo-3-methyl-5-oxo-4H-pyrazole-1-yl] compound.
Finally, this compound and a benzenesulfonic acid derivative containing dichloro substitution are placed in a reactor, a base is added to promote the reaction, and the temperature is raised to 50 to 60 degrees Celsius to fully react. After a series of fine post-processing steps such as filtration, washing, and recrystallization, pure Disodium 4- [4- [5- (2-bromopropane-2-enoamido) -2-sulfonic acid-phenyl] azo-3-methyl-5-oxo-4H-pyrazole-1-yl] -2, 5-dichloro-benzenesulfonate sodium product can be obtained. In the meantime, each step of the reaction requires attention to the precise control of the reaction conditions and the proper allocation of the proportion of raw materials, so as to achieve the best yield and purity of the product.

Fuji disodium 4- [4- [5- (2-bromopropyl-2-enamido) -2-sodium sulfonate-phenyl] azo-3-methyl-5-oxo-4H-pyrazole-1-yl] -2,5-dichlorobenzene sulfonate, this is a complex chemical substance. When using, there are a number of things to pay attention to, should pay attention to.
First, this substance has specific chemical properties, or potential effects on the human body and the environment. Therefore, when using and operating, must strictly follow safety procedures. The operator should wear appropriate protective clothing, such as protective clothing, gloves and goggles, to prevent skin and eye contact. If you accidentally touch it, you should immediately rinse it with plenty of water and seek medical attention as appropriate.
Second, for storage, it should be placed in a dry, cool and well-ventilated place, away from fire, heat and incompatible substances. Due to improper storage conditions, or changes in its chemical properties, it will affect its effectiveness and even cause safety accidents.
Third, during use, the dosage should be precisely controlled. Excessive use not only increases costs, but also may have adverse effects on subsequent reactions or applications. It is necessary to determine the appropriate dosage after accurate calculation and measurement according to the specific experimental purpose or production requirements.
Fourth, in view of its complex chemical structure, when participating in chemical reactions or applying in specific fields, it is necessary to fully consider its compatibility with other substances. Conduct necessary tests in advance to clarify the interaction situation and avoid the occurrence of adverse reactions.
Fifth, after use, it is necessary to follow proper treatment methods for the remaining substances and related waste. Do not discard at will to prevent pollution to the environment. Appropriate treatment methods should be selected in accordance with local environmental protection regulations, such as by professional waste treatment institutions.