5-Amino-8-Hydroxyquinoline Dihydrochloride 97+%

5-Amino-8-hydroxyquinoline-9,10-dione is more than 97%, and its main use is quite extensive. In the field of medicine, this compound is often a key raw material for the synthesis of many specific drugs. Due to its unique chemical structure, it can show affinity and activity to specific biological targets, and help develop therapeutic drugs for specific diseases, such as some difficult and complicated diseases. It has great potential in the diagnosis and treatment of diseases.
In the field of materials science, this substance also has outstanding performance. Because of its special optical and electrical properties, it can be used to prepare new photoelectric materials. After proper treatment and modification, it can be applied to cutting-edge technologies such as organic Light Emitting Diode (OLED) and solar cells to improve the performance and efficiency of these devices and contribute to the progress of materials science.
In the field of chemical analysis, more than 97% of 5-amino-8-hydroxyquinoline-9,10-dione can be used as an excellent chemical analysis reagent. With its characteristics of forming stable complexes with specific metal ions, it can be accurately used for qualitative and quantitative analysis of metal ions, and plays an important role in environmental monitoring, geological exploration, and other work that requires accurate determination of metal element content.
In addition, in the field of organic synthesis, it is an important intermediate and participates in the synthesis of many complex organic compounds. With its structural characteristics, it can introduce specific functional groups, expand the path and possibility of organic synthesis, assist in the synthesis of organic molecules with unique properties and functions, and promote the development of organic synthetic chemistry.

The physical properties of 97% of 5-amino-8-hydroxyquinoline-9,10-dione are as follows:
The outer surface of this compound is often a specific crystal or powder, and its color or light color is caused by the interaction of each group in the molecule. Its melting characteristics are determined by the molecular force and lattice energy. Molecules contain amino groups, alkyl groups and diketone groups, etc., which are arranged in an orderly manner due to the action of alkyl groups and other non-concomitant forces, resulting in the formation of specific melting.
In terms of solubility, because of its alkyl group, it may have a certain solubility in alkyl solutions such as alcohols and certain ketones. The alkyl group can form an interaction such as alkyl groups and promote dissolution. However, in non-soluble solutions such as alkanes, the solubility is not good, because the non-soluble solution has an effective effect on its organic groups.
The density is also important for physical properties, which is determined by the amount of molecules and the crystallization or powder stacking method. The atom and mesh in the molecule are determined, the amount is constant, and the density of the stacking affects the overall density.
In addition, the crystallization is also determined by the polyphysicality. The molecular arrangement law of crystals, the characteristics of crystal cells, etc. affect their optical properties, forces, etc. For example, in terms of light, or due to the scattering and refraction of crystalline light, it is a specific light image. In addition, the 97% polyphysicality of 5-amino-8-hydroxyquinoline-9,10-dione is determined by its fine molecules and molecular interactions.

5-Hydroxy-8-methoxypsoralen dicarboxylic anhydride, this substance contains more than 97%, and its chemical properties are quite stable.
In this substance, the presence of 5-hydroxy and 8-methoxy groups makes the molecular structure have certain characteristics. As an active group, hydroxyl groups easily participate in various chemical reactions. However, in the entire structural system of 5-hydroxy-8-methoxypsoralen dicarboxylic anhydride, the activity of hydroxyl groups is limited to a certain extent due to the joint action of electronic effects of surrounding atoms and groups and steric resistance. The oxygen atom in the methoxy group has a lone pair of electrons, which can produce a conjugation effect with the adjacent π electron system. This conjugation effect helps to disperse the electron cloud and enhances the stability of the whole molecule.
Furthermore, the cyclic structure of the psoralen dicarboxylic anhydride part further stabilizes the entire molecular structure due to the tension and conjugation effect of the ring. Although the dicarboxylic anhydride structure has a certain reactivity, under the environment of more than 97% purity of the substance, the intermolecular interaction is stable, and it is difficult for external factors to easily break its chemical balance.
From a chemical kinetic perspective, under normal environmental conditions (temperature, humidity, light, etc.), the vibration and rotation of the chemical bonds in the molecules of the substance are not sufficient to provide enough energy to break the chemical bonds or initiate reactions such as rearrangement, thus maintaining the stability of the chemical properties and not prone to significant chemical changes.

5-Hydroxy-8-mercaptoquinoline benzoic acid diethyl ester 97 +% is a special substance, and it is quite important to pay attention to its existence.
First of all, this is a chemical agent, which must be stored in a dry, cool and well-ventilated place. Because of its sensitivity to humidity and temperature, if it is in a warm and humid environment, it may cause deterioration and damage its quality and properties. If it is in a humid place, or eroded by water vapor, it will cause chemical changes and lose its initial effect.
For the second time, it must be avoided from open flames and hot topics. Cover such chemicals, or risk of explosion. If it is near a fire source, such as a kitchen fire, a cigarette butt that has not been extinguished, etc., or a device that touches a hot topic, such as an electric stove or a red-hot metal, it is very likely to explode suddenly, causing disaster and endangering the surrounding people, animals and things.
Furthermore, when storing, it should be separated from other things. Such as strong oxidizing agents, strong acids and alkalis, etc., should not coexist with them. Due to its chemical activity and liveliness, it is easy to react to them, or produce poisonous gas, or cause a strong explosion.
In addition, the reservoir must be selected from a good and suitable one. It is appropriate to use corrosion-resistant materials, such as glass and specific plastic utensils, and seal them tightly. Glassware can prevent leakage, and it is easy to detect the contents; plastic utensils can also protect objects if they meet their properties. Strictly sealed, it can eliminate air, water vapor and miscellaneous dust, and maintain its purity.
Remember that there should be clear knowledge in the storage place. Write its name, nature, danger, and emergency methods. If someone who does not know touches it, see this logo, you will know its risk, and you will also know what to do in a hurry.
In keeping these essentials, you can ensure that 5-hydroxy-8-mercaptoquinoline benzoate diethyl ester 97 +% is safe when stored, without losing its use, and avoid disasters.

The preparation method of 5-amino-8-hydroxyquinoline-97% is not detailed in ancient books, but with today's knowledge, the method can be deduced.
To prepare 5-amino-8-hydroxyquinoline-97%, one of the methods is to start with quinoline derivatives. First take a suitable quinoline and introduce a hydroxyl group to its 8-position. By means of a nucleophilic substitution reaction, a hydroxyl group can be substituted with a reagent containing hydroxyl groups under appropriate base and reaction conditions. If the alkoxide is used as a base, in an organic solvent, it reacts with haloquinoline, the halogen atom leaves, and the hydroxyl group is connected to obtain 8-hydroxyquinoline.
Then, the amino group is introduced at the 5-position. 8-hydroxyquinoline can be nitrated first, and the nitro group can be introduced at the 5-position. Select an appropriate nitrifying agent, such as mixed acid (mixture of nitric acid and sulfuric acid), control the reaction temperature and time, so that the nitro group selectively enters the 5-position. Then the obtained 5-nitro-8-hydroxyquinoline is reduced to 5-amino-8-hydroxyquinoline. The commonly used reducing agents are iron and hydrochloric acid, zinc powder and acetic acid, etc. After this reduction step, the nitro group is converted into an amino group.
After the reaction is completed, it needs to be separated and purified to achieve a purity of 97%. The method of recrystallization can be used to select a suitable solvent, and the difference in solubility of the substance at different temperatures can be used to make the target product crystallize and precipitate, and impurities can be removed. Or column chromatography can be used to separate 5-amino-8-hydroxyquinoline and impurities according to the different partition coefficients between the stationary phase and the mobile phase, and obtain a high purity of 5-amino-8-hydroxyquinoline-97%. These are all common ways to prepare such compounds today. Although the ancients did not do this, today's technology makes this preparation possible.