Disodium (3E)-5-Amino-3-[2-(2-Hydroxy-5-Nitrophenyl)Hydrazinylidene]-4-Oxo-3,4-Dihydronaphthalene-2,7-Disulfonate

This is the chemical structure of " (3E) -5-amino-3- [2- (2-hydroxy-5-nitrophenyl) hydrazine fork] -4-oxo-3,4-dihydronaphthalene-2,7-disulfonic acid disodium salt". To clarify the details, let me tell you in detail.
In this compound, (3E) indicates that the configuration of the double bond is E-type, which is related to the spatial arrangement of the molecule and affects its physical and chemical properties. 5-Amino is an amino group at a specific position in the molecule. Amino is alkaline and can participate in many chemical reactions, such as salt formation, reaction with acid anhydride, etc.
3- [2- (2-hydroxy-5-nitrophenyl) hydrazine fork] part, containing a hydrazine fork structure. This structure has a certain reactivity due to the existence of nitrogen atoms, and can condensate with aldose and ketone. And 2-hydroxy-5-nitrophenyl also has unique properties. Hydroxy can undergo esterification, oxidation and other reactions, while nitro can change the electron cloud density of the phenyl ring, affecting the reactivity and stability of the whole molecule.
4-oxygen means that there are carbonyl groups in the molecule. Carbonyl groups are polar groups, which can participate in nucleophilic addition and other reactions, and contribute greatly to the chemical properties of the molecule. 3,4-Dihydronaphthalene shows that the structure is based on the naphthalene ring, but there is a double bond hydrogenation change at the 3rd and 4th positions, which changes the original conjugate system of the naphthalene ring and affects the aromaticity and electron distribution of the molecule.
2,7-Disulfonic acid disodium salt, the sulfonic acid group is a strong acidic group, which can form a salt and increase the water solubility of the compound. The sodium salt form makes the molecule have good solubility and stability in solution.
In summary, the structure of this compound is complex, and each part affects each other, giving it unique physical and chemical properties and reactivity.

This substance, namely (3E) -5 -amino-3- [2- (2-hydroxy-5-nitrophenyl) hydrazylene] -4-oxo-3,4-dihydronaphthalene-2,7-disulfonate disodium salt, is widely used in the field of chemical medicine.
is used in the production of dyes, which can be used as a coloring agent. Because of its special molecular structure, it can absorb and reflect light of specific wavelengths, so the dyes are bright colors. By adjusting the reaction conditions and formula, a variety of colors can be obtained, which is suitable for dyeing fabrics, leather and other materials, so that the dye has good color fastness and long-lasting color.
In medical research, it may have potential biological activity. Its structure contains amino groups, hydroxyl groups, nitro groups and other groups, or it can interact with specific targets in organisms. It can be used to develop new drugs, such as therapeutic drugs for specific diseases. After pharmacological experiments and clinical studies, to explore its effect and mechanism in the treatment of diseases, it is expected to add new weapons to the field of medicine.
In analytical chemistry, it can be used as an analytical reagent. With its special structure and properties, it may be able to generate sensitive chemical reactions with specific substances, and achieve qualitative or quantitative analysis of certain substances by means of color changes or other measurable signals. For example, in water quality monitoring, it may be able to detect specific metal ions or organic pollutants, contributing to environmental analysis.
Also in materials science, or can participate in the synthesis of new materials. Composite with other materials, give materials special optical, electrical or chemical properties, prepare materials with special functions, and apply them to optical devices, sensors and other fields to expand the application of materials.

This is a chemical substance called (3E) - 5 - amino - 3 - [2 - (2 - hydroxy - 5 - nitrophenyl) hydrazylene] - 4 - oxo - 3,4 - dihydronaphthalene - 2,7 - disodium disulfonate salt. Its physical properties are quite important, related to its application in many fields.
Looking at its properties, under room temperature and pressure, it often takes a solid form, which is conducive to storage and transportation. Because it is relatively stable, it is not easy to flow or evaporate at will, and its chemical properties can be guaranteed to remain unchanged within a certain period of time.
Discuss solubility, this substance exhibits a certain solubility in water. Water is a common and important solvent. Its solubility in water means that it can participate in various chemical reactions in aqueous phase systems, or be used to prepare solutions, providing convenience for related experiments and industrial production. In some organic solvents, it also has a certain solubility, which makes it able to adapt to different chemical environments and expand the scope of application.
In addition to the melting point, this substance has a specific melting point. The melting point is the temperature at which a substance changes from a solid state to a liquid state. This property can be used to identify its purity. If the purity is high, the melting point range is relatively narrow and close to the theoretical value; if it contains impurities, the melting point may change and the range may also be widened. This is an important indicator for judging the quality of its quality.
Its color cannot be ignored, showing a specific color. Color is not only an appearance feature, but also sometimes related to molecular structure and electronic transition. Its chemical properties can be inferred based on this. In some application scenarios, such as dyeing, pigments, etc., color plays a key role.
The physical properties of this chemical substance, such as morphology, solubility, melting point, color, etc., are of great significance to its applications in chemical industry, materials, scientific research, and many other fields.

To prepare (3E) - 5 - amino - 3- [2 - (2 - hydroxy - 5 - nitrophenyl) hydrazine] - 4 - oxo - 3,4 - dihydronaphthalene - 2,7 - disodium disulfonate, the method is as follows:
First, all raw materials must be prepared, such as compounds containing naphthalene structure, benzene derivatives with hydroxyl and nitro groups, amino reagents and sulfonation reagents, etc., must be carefully selected to ensure purity.
Take the naphthalene-containing structure first, put it in a suitable reaction vessel, and add an appropriate catalyst to control the temperature and pressure to make it blend with the sulfonating reagent. The key to this step is to precisely regulate the reaction conditions so that the sulfonic acid group is connected to a specific position of the naphthalene ring according to the expected potential to obtain a naphthalene derivative containing a sulfonic acid group.
Then, the derivative is co-located with the amino-containing reagent, and in a specific reaction environment, the amino group is successfully connected to the naphthalene ring, reaching a specific substitution check point to obtain a naphthalene intermediate containing an amino group and a sulfonic acid group.
Furthermore, take the benzene derivative with hydroxyl and nitro groups and react with the hydrazine compound to produce the corresponding benzene hydrazone intermediate. This reaction requires attention to the ratio of the reactants and the pH of the reaction environment to ensure a smooth reaction.
Finally, the naphthalene intermediate containing amino group and sulfonic acid group and the phenylhydrazone intermediate are mixed. Under suitable reaction conditions, the condensation reaction between the two occurs to obtain the target product (3E) -5-amino-3- [2- (2-hydroxy-5-nitrophenyl) hydrazine] -4-oxo-3,4-dihydronaphthalene-2,7-disulfonate disodium. In the end, it needs to be separated and purified to obtain a pure product for subsequent use. Each step of the reaction needs to be carefully controlled, and it is difficult to achieve positive results with a little difference.

"Tiangong Kaiwu" has a saying: "The things in the world are all about the advantages and disadvantages, but the judgment of the advantages and disadvantages is not only related to its nature, but also depends on the way it is used." Today's discussion of Disodium (3E) -5-Amino-3- [2- (2-Hydroxy-5-Nitrophenyl) Hydrazinylidene] -4-Oxo-3, 4-Dihydronaphthalene-2, 7-Disulfonate, the advantages and disadvantages of this thing in the environment cannot be rashly determined.
If we only talk about the properties of this thing, its structure is complex and contains many functional groups. From a chemical point of view, nitro groups, sulfonic acid groups, etc. may have unique roles in specific reactions. However, these chemical properties also lay the groundwork for its environmental impact. Nitro compounds, some toxic, if released in the environment, or affect the survival of organisms. Although sulfonic acid groups increase their water solubility, they may change the chemical properties of water bodies and affect aquatic ecology.
However, its impact on the environment also depends on the use and discharge conditions. If it is properly handled during the production process, its discharge will be controlled at a very low level, and the environment has sufficient self-purification capacity, or has little impact on the environment. On the contrary, if it is released indiscriminately, it will accumulate in soil and water bodies, which may cause a chain reaction and endanger the ecological balance. Therefore, the impact of Disodium (3E) -5-Amino-3- [2- (2-Hydroxy-5-Nitrophenyl) Hydrazinylidene] -4-Oxo-3,4-Dihydronaphthalene-2, 7-Disulfonate on the environment is not simply risk-free. It is necessary to comprehensively consider production, use, emissions and environmental self-purification and other factors, and weigh the advantages and disadvantages before making a comprehensive decision.