3,4-pyridinediamine (9CI)

3,4 - diacid (9CI) is one of the organic compounds, and this substance has many unique chemical properties.
It is acidic because it contains a carboxyl group in its molecular structure. The carboxyl group can ionize hydrogen ions and exhibit acidic properties in aqueous solutions. This acidity enables it to neutralize with bases to form corresponding salts and water. If reacted with sodium hydroxide, 3,4 - diacid sodium salt and water can be formed. This reaction is often used in acid-base neutralization titration to determine its content.
3,4 - diacid has a certain hydrophilicity. The carboxyl group is a polar group and can form hydrogen bonds with water molecules, so the substance has a certain solubility in water. However, its solubility is also affected by factors such as temperature. When the temperature increases, the solubility may increase.
Because it contains two carboxyl groups, it can participate in the esterification reaction. Under the catalysis of concentrated sulfuric acid and heating conditions, it can react with alcohols to form esters and water. This property is very important in the field of organic synthesis, and can be used to prepare various esters with special functions, such as some fragrances, plasticizers, etc.
In addition, 3,4 - distributes to the carbon chain and carboxyl group peripheral electron cloud in its diacid molecular structure, so that it can undergo substitution reaction under certain conditions. For example, the hydroxyl group on the carboxyl group can be replaced by other groups, resulting in a variety of derivatives with different properties and uses, providing a rich choice of reaction paths and feedstocks for organic synthetic chemistry.

3,4-diacidoic acid (9CI) is an organic compound with important uses in many fields.
In the field of medicinal chemistry, it can be used as a key intermediate. The construction of many drug molecules Chang Lai specifies organic compounds as starting materials or intermediates. 3,4-diacidoic acid (9CI) has a unique structure and can be chemically modified and transformed to derive compounds with biological activity. For example, for specific disease targets, by modifying its structure, synthesizing drug molecules that are compatible with it can achieve the purpose of disease treatment.
In the field of materials science, it can participate in the preparation of high-performance materials. For example, it can form polyesters, polyamides and other polymers through polycondensation reactions with polyols and polyamines. Such polymers may have excellent mechanical properties, thermal stability and chemical stability, and can be used to make engineering plastics, fibers and other materials. For example, in the aerospace field, the material properties are strict, and high-performance materials synthesized from 3,4-diacid (9CI) may meet the special needs of aircraft parts.
In the field of fine chemicals, it can be used to prepare special chemicals. For example, it is used as an additive for special coatings, inks, fragrances, etc. With its unique chemical structure, it can give products special properties. If added to coatings, it may improve the adhesion and corrosion resistance of coatings, thereby enhancing product quality and market competitiveness.
In addition, in organic synthesis research, it is often used as a model compound. Through the study of its chemical reactivity and synthesis methods, researchers explore new reaction paths and synthesis strategies, providing support and reference for the development of organic chemistry theory and the creation of new compounds.

3,2,4 - to its diacid (9CI) is an organic compound, and the preparation method is as follows:
One method can be obtained from a suitable starting material through a multi-step reaction. First, take a hydrocarbon compound with a specific structure, carry out a free radical substitution reaction with bromine under the action of light or an initiator, and introduce a bromine atom at a suitable position of the hydrocarbon group to obtain a bromohydrocarbon. This bromohydrocarbon reacts with sodium cyanide in a suitable solvent according to a nucleophilic substitution mechanism, and the bromine atom is replaced by a cyanide group to form a nitrile compound. Then the nitrile compound is hydrolyzed under acidic or alkaline conditions, and the cyanyl group is converted into a carboxyl group to obtain a carboxyl-containing intermediate. If the position of the functional group introduced into the starting material is suitable, some functional groups are adjusted by appropriate oxidation and other steps, and then the intermediates containing carboxyl groups are connected and further modified by means of condensation reactions, 3, 2, 4 - to its dicarboxylic acid (9CI) can be obtained.
Another way is to use compounds containing unsaturated bonds as starting materials. If conjugated olefins are selected, in the presence of suitable catalysts, the Diels-Alder reaction is carried out with the diene body to construct a six-membered cyclic structure. Then the obtained product is functionally converted, the unsaturated bond on the ring is first saturated by hydrogenation and other reactions, and then a halogen atom is introduced. After similar steps of converting the halogen atom into a carboxyl group, the carboxyl group structure in the molecule is gradually constructed. Finally, after the necessary purification and structural adjustment steps, the target product 3,2,4-diacid (9CI) can be obtained. During the preparation process, attention should be paid to the precise control of the reaction conditions, including temperature, pH, reaction time, etc., to ensure the smooth progress of each step of the reaction and improve the yield and purity of the product.

3,4 - When storing and transporting diols (9CI), there are a number of urgent precautions to be paid attention to.
First words storage, this substance should be stored in a cool, dry and well-ventilated place. Due to its chemical properties, high temperature or humid environment is very easy to cause deterioration. If heated, or cause its structure to change, it will affect the quality; and humid gas, or react with ingredients, impair the purity. And it needs to be placed separately from oxidizing agents, acids and other substances to prevent improper reaction. This is due to the chemical activity of the diol, contact with the above substances, or react violently, causing the risk of explosion.
As for transportation, the packaging must be solid and reliable. It is necessary to ensure that the packaging materials can withstand vibration, collision and friction, so as to avoid package damage and material leakage during transportation. During transportation, temperature control should also be strictly maintained to maintain a suitable temperature range, and it must not be exposed to extreme temperature conditions. In addition, the transportation vehicle should have perfect fire protection and emergency equipment. If an accident such as leakage unfortunately occurs, it can be responded to in time to reduce the harm. And the transportation personnel need to be professionally trained and familiar with the characteristics of the substance and emergency disposal methods, so as to ensure the safety of transportation. Whether it is storage or transportation, relevant laws and standards must be strictly followed, and there must be no slack in order to ensure the safety of personnel and material quality.

Since modern times, in the market, the price of commercial goods has changed according to various reasons, and the price of 3% 2C4-to-its-dicarboxylic acid (9CI) is no different. The market price of this product is often valued by merchants, which is related to the thickness of the profit and the development and failure of the industry.
Looking at the market situation, the price of 3% 2C4-to-its-dicarboxylic acid (9CI) depends first on the balance between supply and demand. If there are many people who want it, but there are few people who supply it, the price will increase; on the contrary, if the supply exceeds the demand, the price will drop. In the past years, there has been a harvest of grain, but the price is low because of the abundance; the medicine in the year of disaster is urgent and the price is high, and the effect of this supply and demand is also.
Furthermore, the cost of manufacturing also has a great impact on its price. The price of raw materials, the amount of labor costs, and the level of energy consumption can all affect its price. If raw materials are rare and expensive, and the labor costs and energy consumption of manufacturing are huge, the price of 3% 2C4-diacid (9CI) produced will be very high. Like ancient treasures, due to the use of exquisite materials and complicated craftsmanship, the price is more than usual.
The current situation of chaos and the leniency of government orders are also related to market prices. If the government of Shining is stable, the trade routes are smooth, the goods are easy to circulate, and the prices are more and more stable; if the world is chaotic and the government is harsh, the trade routes are obstructed, the goods are difficult to sell, or the goods are difficult to ask for, the price will rise. In the past, there were places of war, where business travel was not possible, and things were rare and expensive, which can be proved.
In addition, the competition in the same industry is also a variable in price. Businesses compete for the market, or reduce their prices to attract customers, or increase their quality to outperform others. Price wars often make prices fluctuate in the city. If various parties stand side by side and compete for promotions, the price will drop.
To sum up, the market price of 3% 2C4-to-its diacid (9CI) is controlled by many factors such as supply and demand, cost, current situation, competition, etc. The change of its price is not constant. Businesspeople need to take into account the situation in order to profit from the market.