5 7 Diiodo 8 Hydroxyquinoline

5,7-Dibromo-8-hydroxyquinoline, although it is not directly described in Tiangong Kaiwu, it should be useful in ancient chemical processes and application thinking.
It can be an important analytical reagent in the field of chemical analysis. It can complex with many metal ions, and the resulting complex has specific colors and properties, which can be used for qualitative and quantitative analysis of metal ions. For example, in ancient metallurgical processes, if you want to know the metal composition and content contained in ores, 5,7-dibromo-8-hydroxyquinoline may help craftsmen to analyze it. With its characteristics of complexing with metal ions, specific metal ions can be presented in the form of recognizable complexes from complex ore compositions, helping craftsmen know the advantages and disadvantages of ore and determine the method of smelting.
In the field of medicine, it may also have potential uses. Ancient healers often used various types of herbs, trees, gold and stones as medicine to treat diseases. 5,7-dibromo-8-hydroxyquinoline, if properly processed and compatible, may have antibacterial and anti-inflammatory effects. Because of its structure and properties, it may act on the metabolic process of microorganisms or cell structure, inhibiting its growth and reproduction, and assisting in the treatment of diseases.
In the field of materials, it may participate in the modification and preparation of materials. 5,7-Dibromo-8-hydroxyquinoline can be used as an additive to change the physical and chemical properties of the material, such as enhancing the stability and corrosion resistance of the material, so as to make the made utensils more practical.

5,2,7-Dichloro-8-quinolinyl benzoic acid is an organic compound, which is very important in the fields of pesticides and medicine. Its physical and chemical properties are as follows:
- ** Physical properties **:
- ** Appearance **: Under normal conditions, it is mostly white to light yellow crystalline powder. This form is conducive to storage and transportation, and can exist stably in many reaction systems.
- ** Melting point **: The melting point is in a specific range, and the specific value varies slightly due to purity and other factors. Generally, it melts at a relatively high temperature, which reflects the strong intermolecular force and certain structural stability.
- ** Solubility **: Slightly soluble in water, due to limited molecular polarity, weak interaction with water molecules. However, it can be soluble in some organic solvents, such as dichloromethane, acetone, etc., and can better disperse and participate in the reaction in these solvents, providing convenience for its organic synthesis and preparation.
- ** Chemical Properties **:
- ** Acidic **: The carboxyl group in the molecule can ionize hydrogen ions, which is weakly acidic. It can neutralize with bases to generate corresponding carboxylic salts. This property is used to prepare water-soluble salt derivatives, enhance their solubility and stability in water, and expand application scenarios.
- ** Substitution reaction **: Hydrogen atoms on the benzene ring and quinoline ring can be replaced by other groups. Under appropriate catalyst and reaction conditions, halogenation, alkylation, acylation and other reactions can occur, whereby different functional groups are introduced to derive a variety of compounds to meet the different needs of pesticides and medicine.
- ** Stability **: Stable under conventional storage and use conditions, but in case of strong oxidants, strong acids, strong bases or high temperatures, the structure may change. If it may decompose at high temperatures, it will affect the quality and performance of the product, so storage and use should pay attention to environmental conditions.

The synthesis of 5,7-dibromo-8-hydroxyquinoline is an important topic in the field of organic synthesis. The synthesis method is mostly based on specific chemical principles and steps.
In the past, quinoline was often used as the starting material for the synthesis of this compound. Quinoline can be brominated and bromine atoms can be introduced at specific positions. Generally speaking, under appropriate reaction conditions, such as selecting suitable solvents, catalysts and controlling the reaction temperature and time, quinoline can undergo electrophilic substitution with bromine. Usually under mild conditions, bromine atoms can be introduced preferentially at positions 5,7 to generate 5,7-dibromoquinoline.
Then, 5,7-dibromoquinoline is hydroxylated to introduce 8-hydroxyl groups. This step often requires the help of specific reagents and reaction conditions. If the reaction is carried out in a suitable reaction system with an appropriate base and a reagent containing hydroxyl groups. The base can assist in activating the substrate and promote the occurrence of nucleophilic substitution reactions, resulting in the successful introduction of hydroxyl groups at position 8, resulting in the final 5,7-dibromo-8-hydroxyquinoline.
Or there is another method, using aromatic hydrocarbons containing specific substituents as starting materials, through multi-step reactions to construct quinoline rings. At the same time, in the process of constructing the ring, the reaction sequence and conditions are ingeniously designed, so that bromine atoms and hydroxyl groups can be precisely introduced to the target position. Although this approach may be more complicated, it can avoid some of the problems of reaction selectivity, and is also an effective strategy for the synthesis of 5,7-dibromo-8-hydroxyquinoline. In short, the synthesis method depends on the actual experimental conditions, the availability of raw materials, and the purity requirements of the target product.

5% 2C7-dibromo-8-hydroxyquinoline should pay attention to the following matters during use:
First, this substance is toxic, and safety procedures must be strictly followed when taking and handling it. Operators should wear protective clothing, gloves and goggles, and beware of contact with skin and eyes. In case of accidental contact, rinse with plenty of water immediately, and seek medical treatment according to specific conditions.
Second, its chemical properties are active and it is easy to react with other substances. Therefore, when storing, it should be placed in a dry, cool and well-ventilated place, away from fire, heat and strong oxidants. At the same time, it should be placed separately from other chemicals to prevent dangerous interactions.
Third, when conducting relevant experiments or using, the dosage should be precisely controlled. Due to its high reactivity, improper dosage may lead to deviation of experimental results, or cause unnecessary side reactions. When configuring the solution, accurate measuring tools and suitable solvents should be used according to specific needs, and the configuration should be strictly in accordance with the operating procedures.
Fourth, after use, the remaining 5% 2C7-dibromo-8-hydroxyquinoline and related waste must not be discarded at will. Proper disposal should be carried out in accordance with relevant regulations to avoid pollution to the environment.
Fifth, due to its special nature, close attention should be paid to observe the reaction phenomenon during use. In the event of abnormal conditions, such as sudden temperature changes, abnormal odors, etc., the operation should be stopped immediately and corresponding countermeasures should be taken.
Only when using 5% 2C7-dibromo-8-hydroxyquinoline, full attention to the above matters and strict implementation can ensure the safety of the operation and ensure the smooth progress of the experiment or use process.

I think what you are asking is about the market price range of 5,7-dibromo-8-hydroxyquinoline. However, the price of these things varies with time, place, quality and supply and demand, and it is difficult to determine a fixed value.
In the market, if its quality is pure and it is used for ordinary business needs, the price may be different. If it is excellent and pure, the price may be higher; if it is pure in analysis, the price may be slightly lower. And in various regions, where the economy is prosperous and logistics is convenient, the price may be relatively easy; in remote places, due to the difficulty of transshipment, the price may increase.
In addition, the state of market supply and demand is also a major reason. If there are many people who ask for a while, but there are few suppliers, the price will increase; conversely, if the supply exceeds the demand, the price may drop.
Although it is difficult to say the exact value, it is rough to estimate that the price per gram may be between tens and hundreds of texts. This is only a rough estimate, and the actual price should be subject to the current market conditions. If you want to know the details, you can consult the merchant of chemical materials, or visit the platform of relevant transactions, to get the exact price.