Disodium (3Z)-5-Hydroxy-4-Oxo-3-(Phenylhydrazono)-3,4-Dihydronaphthalene-2,7-Disulfonate

(3Z) - 5-hydroxy-4-oxo-3- (phenylhydrazone) - 3,4-dihydronaphthalene-2,7-disodium disulfonate, which has a wide range of uses. In the dyeing and weaving industry, it is often used as a dye, which can give fabrics brilliant color. Because of its unique structure, it can be closely linked with fabric fibers, making the dyeing firm and bright, and will not fade for a long time. Various fiber fabrics such as cotton, linen, and silk can be dyed with this.
In the field of analysis and detection, it also has important functions. It can be used to detect the presence and content of certain substances through its characteristic reaction with specific substances. For example, in a specific chemical system, it can react with certain metal ions and exhibit a unique color change, which can accurately determine the concentration of metal ions.
In the field of scientific research and exploration, (3Z) - 5 - hydroxy - 4 - oxo - 3 - (phenylhydrazone) - 3,4 - dihydronaphthalene - 2,7 - disodium disulfonate, as an organic synthesis intermediate, helps chemists create new organic compounds. By modifying and modifying its structure, new materials with special properties and functions can be obtained, which contributes to the development of materials science.
In conclusion, (3Z) - 5 - hydroxy - 4 - oxo - 3 - (phenylhydrazone) - 3,4 - dihydronaphthalene - 2,7 - disodium disulfonate plays an indispensable role in many fields due to its various uses.

(3Z) - 5-hydroxy-4-oxo-3- (phenylhydrazone) - 3,4-dihydronaphthalene-2,7-disulfonic acid disodium salt, this is an organic compound. Its chemical properties are quite unique, with acidic groups. Due to the sulfonic acid group, it can be ionized in water and is acidic to a certain extent. It can neutralize with bases in solution to form corresponding salts.
Its structure contains hydroxyl groups, and this functional group can participate in a variety of chemical reactions. Hydroxyl groups are active and can undergo esterification reactions. React with organic or inorganic acids under suitable conditions to form ester compounds.
Furthermore, the structure of benzhydrazone endows the compound with specific chemical properties. The part of benzhydrazone has a certain response to external conditions such as light and heat. Under certain conditions, the structure of benzhydrazone can undergo rearrangement or decomposition reactions.
In addition, the structure of the naphthalene ring in this compound makes it have a certain conjugated system, which affects its electron cloud distribution and chemical activity. The conjugated system enhances the molecular stability and has unique spectral properties. For example, it has a specific absorption peak in the ultraviolet-visible spectral region, which can be used for qualitative and quantitative analysis of the compound.
This compound has good solubility in polar solvents due to its multiple polar groups, but poor solubility in non-polar solvents. These chemical properties are interrelated, which determines the application potential of this compound in organic synthesis, analytical chemistry, and other fields.

The method of preparing (3Z) -5-hydroxy-4-oxo-3- (phenylhydrazone) -3,4-dihydronaphthalene-2,7-disulfonic acid disodium salt is quite complicated and requires rigorous steps.
First, when the derivative of naphthalene is taken as the starting material, such as 2,7-naphthalene disulfonic acid. Oxidation of it with a suitable oxidant, such as chromic acid or its salts, under specific reaction conditions can partially oxidize the naphthalene ring to form a carbonyl-containing intermediate. This step requires attention to the reaction temperature and the amount of oxidant to prevent excessive oxidation.
Second, the resulting carbonyl-containing intermediate is reacted with phenylhydrazine in a weakly acidic medium, which is a key step in the formation of hydrazone. The weakly acidic environment is conducive to the nucleophilic addition of phenylhydrazine and carbonyl groups, and then dehydration to form a hydrazone structure. The reaction time and pH value need to be controlled to ensure that the reaction proceeds in the desired direction.
Furthermore, the hydroxylation reaction of the product that has formed hydrazone is carried out under specific conditions. Suitable hydroxylation reagents can be used, such as the reaction with hydrogen peroxide catalyzed by specific metal salts, to introduce hydroxyl groups at suitable positions. This step requires strict reaction conditions, and the temperature, catalyst type and dosage are all related to the hydroxylation position and yield.
Finally, the resulting product is treated with an alkali metal hydroxide, such as sodium hydroxide solution, so that its sulfonic acid group forms a sodium salt, resulting in the target product (3Z) -5-hydroxy-4-oxo-3- (phenylhydrazone) -3,4-dihydronaphthalene-2,7-disulfonate disodium salt. The product needs to be purified by means of recrystallization or chromatography to achieve the desired purity. The intermediate needs to be properly handled between each step, and the reaction conditions need to be carefully adjusted to obtain the product with ideal yield and purity.

"Tiangong Kaiwu" is a masterpiece of ancient technology, but it does not involve the market price of "Disodium (3Z) -5-Hydroxy-4-Oxo-3- (Phenylhydrazono) -3, 4-Dihydronaphthalene-2, 7-Disulfonate". This compound has a complex name and is a product of the fine field of modern chemistry.
To know its market price, today's method is to consult the chemical product trading platform, where there are many merchants, and the quotations are different and can be compared. Or ask the professional chemical raw material suppliers, who often sell all kinds of fine chemicals and are very familiar with the price list. In addition, the sales organization of chemical reagents is also a good choice, and they may have this product for sale and can clearly state the price.
Or refer to academic literature, some studies may mention relevant product procurement information, from which the price range may be inferred. However, the price of this product may fluctuate greatly due to different purity, specifications, and market supply and demand. If you need an accurate price, you must refer to real-time market consultation.

Fufodium (3Z) - 5 - hydroxy - 4 - oxo - 3 - (phenylhydrazone) - 3,4 - dihydronaphthalene - 2,7 - disulfonate This substance, when used, there are many things to pay attention to, must not be ignored.
First, it is necessary to review its application situation in detail. This compound may be used in specific chemical reactions, industrial processes, experimental studies and other scenarios to exert its effect. If used in an unsuitable place, not only will it be difficult to achieve the expected results, but also cause many disadvantages. For example, in an unsuitable reaction system, or cause the reaction to be disordered, resulting in impure products, or making the reaction unsustainable.
Second, it is related to the control of the dose. If the amount is small, the effect is not complete; if the amount is large, it may cause redundancy and increase the cost. During the experiment, when the accurate measuring instrument is used according to the predetermined ratio, the reaction can be carried out smoothly and the best benefit can be achieved.
Third, the storage of this object also needs to be cautious. It should be placed in a dry, cool and well-ventilated place, away from direct light and high temperature environment. Otherwise, or because of its active chemical nature, it may cause metamorphism and decomposition, losing its original characteristics and efficacy.
Fourth, during use, be sure to strictly abide by safety regulations. Wear appropriate protective equipment, such as gloves, goggles, etc., to prevent it from coming into contact with the skin and eyes. If it comes into contact, rinse with plenty of water immediately and seek medical attention as appropriate. The operating environment should also be well ventilated to avoid inhaling its dust or volatile gas, which can damage the respiratory organs.
Fifth, understand its compatibility with other substances. Before mixing, it is necessary to carefully investigate whether adverse reactions will occur, such as precipitation, gas escape, discoloration, etc., so as not to affect the overall effect or even cause danger.