4-amino-2-nitropyridine 97%

4-Amino-2-nitropyridine, with a content of 97%, has a wide range of uses. In the field of medicinal chemistry, it is a key synthesis intermediate. Due to its unique structure, it can be used to construct complex drug molecular structures through many chemical reactions. The preparation of many antibacterial and anti-inflammatory drugs often relies on this as the starting material. Through ingenious reaction steps, drugs are endowed with unique biological activities and pharmacological properties.
In the field of materials science, it also has its uses. Due to its nitrogen-containing heterocyclic structure and nitro and amino properties, it can participate in the synthesis of specific polymer materials. In this way, the electrical and optical properties of materials may be improved, such as the preparation of materials with special electrical conductivity and luminescence properties, which show potential application value in the manufacturing of electronic devices and optoelectronic devices.
Furthermore, in the field of organic synthetic chemistry, it is an important reaction substrate. Chemists can use its amino and nitro activities to carry out various functional group conversion reactions, expand the variety and structural diversity of organic compounds, provide a key foundation for the creation of new compounds, and play an indispensable role in exploring novel organic synthesis paths.

I think what you are asking is about the market price of 4-amino-2-nitropyridine with a purity of 97%. However, the price of the market often changes due to factors such as time, place, supply and demand, and it is difficult to say the exact price.
In the past, "Tiangong Kaiwu" wrote that the price of all things in the world depends on many parties. The price of this 4-amino-2-nitropyridine may vary depending on the difficulty of production and the price of the materials used. If the production is easy, the material is abundant, and the price is slightly cheaper; if the production is difficult and the material is rare, the price will be high.
And the market transaction place is different, its price is also different. Prosperous cities, where commodities converge, competition is fierce, and prices tend to be flat; remote places, where the circulation of goods is inconvenient, prices may be higher.
And the state of supply and demand is also the key. If there are many people in need, and there are few suppliers, the price will rise; if the supply exceeds the demand, the price will drop.
Therefore, in order to know the exact market price of 4-amino-2-nitropyridine 97%, when visiting the chemical raw material market in person, consulting merchants, or observing its recent transaction price on relevant trading platforms, you can get a more accurate number. It is difficult to determine the geometry of its price based on empty words alone.

4-Amino-2-nitropyridine, with a purity of 97%, its Quality Standards are related to many aspects.
Looking at its appearance, it should appear as a white-like to light yellow crystalline powder with uniform color and no obvious variegation or foreign matter. This is the primary standard that can be seen intuitively, and it is related to the external appearance of the product.
When it comes to purity, it is established to be 97%, and the deviation needs to be strictly controlled within a very small range. With the help of high-performance liquid chromatography (HPLC) and other accurate analysis methods, its purity can be accurately determined. The impurity content must be strictly limited, and the total amount of various impurities must not exceed 3%. Among them, specific impurities, such as raw material residues, reaction by-products, etc., also have strict upper limits in their respective content to ensure pure product quality.
Melting point range is also a key quality indicator. The melting point of 4-amino-2-nitropyridine is usually within a fixed range, such as [specific melting point range]. When measuring the melting point, the fluctuation shall not exceed a certain value, so as to ensure the consistency of the crystal structure and purity of the product.
Moisture content cannot be ignored either. Excessive moisture may cause product agglomeration and deterioration. Generally speaking, the moisture should be controlled below the [specific moisture content upper limit] by Karl Fischer method.
Furthermore, in the determination of related substances, in addition to impurities, it is necessary to pay attention to the possible isomers and other related substances to ensure that they meet the specified limits, so as not to affect the subsequent performance of the product.
The above Quality Standards complement each other and jointly ensure the high quality of 4-amino-2-nitropyridine (97% purity), which is suitable for various industrial, scientific research and other application scenarios.

4-Amino-2-nitropyridine with a purity of 97%, the production process is as follows:
Pyridine is first taken as the initial raw material, which is a common nitrogen-containing heterocyclic compound. In a specific reaction vessel, pyridine is mixed with concentrated nitric acid and concentrated sulfuric acid in a precise ratio. This mixing process requires careful operation, because the concentrated acid is highly corrosive and oxidizing. After mixing the two, a strong nitrification system will be formed. Under the right temperature and time conditions, a nitrification reaction occurs at a specific position on the pyridine ring. In this reaction, nitric acid provides nitro (-NO 2), and concentrated sulfuric acid plays a catalytic and dehydrating role, helping the reaction to generate 2-nitropyridine. After separation and purification, 2-nitropyridine can be obtained.
Then, 2-nitropyridine is used as the substrate and put into the hydrogenation reaction device. Appropriate catalysts, such as Raney nickel, are added, and hydrogen is introduced. Under a certain temperature and pressure environment, the nitro group of 2-nitropyridine (-NO) is reduced to hydrogen and converted to amino group (-NH ²), then 4-amino-2-nitropyridine is formed.
After the reaction is completed, a series of refining methods such as extraction, distillation, and recrystallization are required to improve the purity of the product to 97%. Extraction can separate substances with different solubility in the reaction system; distillation uses the difference in boiling point of each component to achieve separation; recrystallization changes according to the solubility of the substance at different temperatures, further purifies the product, removes impurities, and finally obtains high-purity 4-amino-2-nitropyridine.

4-Amino-2-nitropyridine, with a content of 97%, its storage conditions are quite critical. This substance needs to be placed in a cool, dry and well-ventilated place. Because of the cool environment, it can avoid its qualitative change due to excessive temperature; dry place, it can prevent moisture erosion and prevent it from reacting with moisture; well-ventilated place, it can disperse volatile gases that may accumulate and keep its chemical properties stable.
Furthermore, the storage must be kept away from fire and heat sources. Fire and heat can easily cause it to explode, causing unexpected risks. At the same time, it should be stored separately from oxidants, acids, bases, etc., and must not be mixed. The edge oxidant has strong oxidizing properties, and the chemical properties of acids and bases are active. When coexisting with 4-amino-2-nitropyridine, it is easy to cause violent chemical reactions and endanger safety.
The storage container must be tightly sealed to prevent leakage. After taking it, it should also be sealed in time to ensure its quality is not affected by the outside world. In addition, the storage area should be equipped with suitable materials to contain possible leakage, so that it can be handled quickly and properly in the event of an accident to reduce the damage. In this way, the safety and stability of 4-amino-2-nitropyridine during storage must be ensured.