2% 2C6-dibromo-4-chloroaniline, which was not available in the Ming Dynasty when "Tiangong Kaiwu" was written, so it is described as follows in ancient Chinese:
Today there is a thing called 2% 2C6-dibromo-4-chloroaniline, which has a wide range of uses. In the field of medicine, it is an important synthetic raw material. It can be used in exquisite ways to prepare a variety of special drugs, or to treat diseases, or to heal pain, and to save people from diseases.
In agriculture, it is also very useful. It can be used as a key ingredient in the synthesis of high-efficiency pesticides to kill field pests, maintain the vigorous growth of crops, and make the grains abundant and the fields abundant.
In the field of materials science, it can participate in the synthesis of special materials. Help to form tough, durable and special properties of materials, or used in the manufacture of equipment, or used in the construction of buildings, strong and delicate, used by the world.
In the road of scientific research and exploration, it is an indispensable reagent. For scholars and Fang families to study the nature of matter, the law of change, promote the progress of science, and open the unknown secrets.

2% 2C6-dibromo-4-chloroaniline is an organic compound. Its physical properties are as follows:
Viewed at room temperature, it is mostly white to light yellow crystalline powder. This form is easy to identify and operate, and is easy to handle in many chemical processes.
Smell, often has a special smell. Although this smell is not strong and pungent, it can be used as the basis for preliminary identification. In laboratory or industrial environments, personnel can use this smell to preliminarily determine its existence or not.
When it comes to melting points, it is within a specific range, and the specific values vary slightly due to factors such as purity. Melting point characteristics have a great influence on its state changes at different temperatures. During the heating process, the melting point is gradually changed from solid to liquid, which is of great significance in the fields of organic synthesis and material preparation. For example, in some reactions, it is necessary to precisely control the temperature to keep the substance in the liquid state to promote the smooth progress of the reaction.
Its solubility is also an important property. In organic solvents such as ethanol and ether, it has a certain solubility. This property makes it possible to dissolve it in organic synthesis with the help of suitable organic solvents, and then participate in various chemical reactions. In water, the solubility is poor. This determines that in systems involving the aqueous phase, the dispersion and reaction conditions are significantly different from those in the organic phase. For example, in aqueous phase catalytic reactions, special means are required to promote full contact with the aqueous phase reactants. In terms of density, it has a specific value. Density affects its distribution and separation in the mixture. In the separation process of chemical production, depending on the density difference, it can be separated from other substances by methods such as centrifugation and gravity sedimentation to achieve the purpose of purification or composition adjustment.

To prepare 2,6-dibromo-4-ethylphenol, there are several synthetic methods as follows.
First, phenol is used as the starting material. First, phenol and bromine undergo bromination reaction. Because phenolic hydroxyl is a strong ortho-and para-locator, bromine easily replaces phenolic hydroxyl ortho-and para-hydrogen. Controlling the amount of bromine and the reaction conditions, bromine can be mainly substituted in the ortho-position of phenolic hydroxyl to obtain 2,6-dibromophenol. Subsequently, 2,6-dibromophenol and haloethane under basic conditions, such as sodium hydroxide alcohol solution, undergo nucleophilic substitution reaction, and the ethyl group of haloethane replaces the hydrogen of phenolic hydroxyl group to obtain 2,6-dibromophenol. The steps of this method are relatively simple, and the raw material phenol is easy to obtain, but the bromination reaction needs to precisely control the amount of bromine to prevent excessive bromination.
Second, p-ethylphenol is used as the raw material. In p-ethylphenol, ethyl groups are weak ortho and para-localizers, and phenolic hydroxyl groups are also ortho and para-locators. The two work together to increase the density of the ortho and para-electron clouds on the phenyl ring. 2,6-Dibromo-4-ethylphenol can be prepared efficiently by directly brominating p-ethylphenol with bromine, and bromine is preferentially substituted in the ortho-position of phenolic hydroxyl group. The starting material of this route is relatively special for ethylphenol, and if it is not easy to obtain, its application will be limited.
Third, benzene is used as the starting material. First, through Fu-g alkylation reaction, benzene and chloroethane are catalyzed by anhydrous aluminum trichloride to produce ethylbenzene. Ethylbenzene is then brominated, and bromine replaces ethylbenzene side chain α-hydrogen in the presence of light or free radical initiator to obtain α-bromoethylbenzene. Subsequently, α-bromoethylbenzene reacts with phenol under alkaline conditions to generate 2- (1-bromoethyl) phenol, and then further brominates, introducing another bromine atom at the phenolic hydroxyl ortho-position under suitable conditions to obtain the target product. This method involves cumbersome steps and involves the conversion and control of various reaction conditions, but the starting material benzene comes from a wide range of sources.
All these synthesis methods have their own advantages and disadvantages. In practical application, it is necessary to comprehensively consider many factors such as the availability of raw materials, the controllability of reaction conditions and cost, and make a prudent choice.

2% 2C6-dibromo-4-chloroaniline must pay attention to many key matters during storage and transportation.
First, it is related to packaging. It needs to be tightly sealed to ensure that it is not disturbed by the external environment. The cover has certain chemical activity. If the packaging is not strict, it may react with air, moisture, etc., which will damage the quality. Corrosion-resistant materials should be used, such as special plastic containers or metal containers lined with protective materials, to prevent the packaging from being corroded and leaking.
Second, temperature and humidity control. It should be stored in a cool, dry place, away from heat and moisture. Excessive temperature may accelerate the decomposition and deterioration of this substance; and excessive humidity may easily cause chemical reactions, such as hydrolysis. The ideal storage temperature should be maintained in a specific low temperature range, and the humidity should also be controlled within a certain range.
Third, isolated storage. Do not mix with oxidants, acids, alkalis and other substances. Due to its chemical properties, it encounters with the above substances, or causes violent chemical reactions, which can even cause ignition and explosion, endangering safety.
Fourth, the transportation process. It is necessary to ensure that the transportation vehicle is clean, dry, and has good protective measures. During transportation, avoid bumps and vibrations to prevent damage to the packaging. If transported by road, you must follow the prescribed route to avoid densely populated areas and environmentally sensitive areas.
Fifth, clear signs. Whether it is the place of storage or the means of transportation, eye-catching signs should be posted, indicating the name of the substance, characteristics, hazards and emergency treatment methods, so that relevant personnel can know and take prompt and correct measures in case of emergency. In this way, the safety and quality of 2% 2C6-dibromo-4-chloroaniline during storage and transportation must be ensured.

For 2% 2C6-dibromo-4-chloroaniline, the price of the market varies depending on various reasons.
The price difference depends on the quality. If it has high purity and few impurities, it is suitable for high-end pharmaceutical, fine chemical and other industries, and the price is high. If such industries are very demanding on the quality of raw materials, they would rather buy high-purity products at a heavy price to ensure the quality and performance of the product. On the contrary, if the purity is slightly lower, it is only used for general industrial purposes, and the price is slightly cheaper.
Second, the supply and demand of the market is also an important factor. If the market needs 2% 2C6-dibromo-4-chloroaniline very much, but the production is not enough, its price will rise. Businesses compete to buy and bid up its price. If there is an oversupply, producers want to sell their goods quickly, and the price may drop.
Furthermore, the cost of production also affects its price. The price of raw materials, labor costs for production, wear and tear of equipment, and transportation tariffs are all included in the cost. If the price of raw materials rises, or labor costs increase, the price will also rise accordingly.
In addition, different places may have different prices. Economically prosperous, with many needs and close to the origin of raw materials and convenient transportation, the price may be different from that in remote places. Due to differences in transportation costs, market competition, etc.
At present, the market price of 2% 2C6-dibromo-4-chloroaniline ranges from a few hundred to several thousand yuan per kilogram. The specific price can only be determined after consulting the chemical raw material suppliers in detail and studying it carefully according to time and place.