3-Chloro-4-fluoroiodobenzene, with a content of 98%, has a wide range of uses. In the field of pharmaceutical synthesis, it is often used as a key intermediate. Due to the activity of halogen atoms, the benzene ring can be introduced into multiple functional groups through many chemical reactions, such as nucleophilic substitution reactions, and then the complex structure of pharmaceutical molecules can be established, laying the foundation for the creation of new drugs.
In the field of materials science, it also has important functions. It can participate in polymerization reactions to form polymers with special halogenated aryl structures. Such polymers may have unique electrical and optical properties, such as good photoelectric conversion properties, which can be applied to the manufacture of organic Light Emitting Diodes (OLEDs), solar cells and other optoelectronic devices to improve the performance and efficiency of the devices.
In the field of pesticide chemistry, due to the special activity and stability endowed by halogen atoms in the structure, it can be used as a starting material for the synthesis of new pesticides. Through rational molecular design and reaction transformation, pesticide compounds with high insecticidal, bactericidal or herbicidal activities can be synthesized, and because of their special structure, they may improve the selectivity of pesticides to target organisms and reduce the impact on non-target organisms, which is in line with the trend of green pesticide development.

3-Chloro-4-fluoroiodobenzene, with a content of 98%, has the following physical properties:
It is an organic halogenated aromatic hydrocarbon, often in a liquid state at room temperature, with a nearly colorless to slightly yellow color, clear and transparent, and a special aromatic odor. Because the molecule contains halogen atoms such as iodine, chlorine, and fluorine, the relative density is greater than that of water, about 2.0-2.2 g/cm ³. The boiling point is higher than that of halogen atoms, about 210-230 ° C. At this temperature, the molecule overcomes the intermolecular force and changes from liquid to gaseous state. The melting point is about -10-0 ° C. At this temperature, the molecular arrangement changes from a disordered liquid state to an ordered solid state.
It has good solubility in common organic solvents such as dichloromethane, chloroform, and ether. Due to the principle of similar phase dissolution, weak intermolecular forces can be formed between the organic matter and the organic solvent molecules, resulting in mutual dissolution. However, the solubility in water is poor, because it is a non-polar organic matter, the force between it and polar water molecules is weak, and it is not easy to mix.
In addition, the refractive index of 3-chloro-4-fluoroiodobenzene is about 1.60-1.62, reflecting its ability to refract light, which is affected by the molecular structure and electron cloud distribution. At the same time, the halogen atom in the molecule gives the molecule a certain polarity, and the dipole moment is about 1.5-2.0 D, which affects its physical properties and chemical reactivity.

3-Chloro-4-fluoroiodobenzene, with a content of 98%. The chemical properties of this substance are relatively stable. In its molecular structure, the presence of chlorine, fluorine and iodine atoms endows it with specific chemical activities. However, in terms of stability, halogenated aromatic hydrocarbons generally have certain stability.
Chlorine atoms and fluorine atoms, because of their high electronegativity, can change the electron cloud density of the benzene ring and affect the reactivity. Although iodine atoms are relatively active, their reactivity is also restricted in this compound by the conjugation effect of benzene rings and other halogen atoms.
Under normal storage conditions, if placed in a cool, dry and dark place, avoid contact with strong oxidants, strong bases and other active substances, this 3-chloro-4-fluoroiodobenzene can maintain its chemical stability. However, in some specific chemical reaction environments, such as under high temperature and the presence of catalysts, its halogen atoms can undergo reactions such as substitution, and the stability will change at this time. In short, under normal conditions, the chemical properties of this substance are still stable.

3-Chloro-4-fluoroiodobenzene (3-Chloro-4-Fluoroiodobenzene), with a content of 98%, the preparation process is as follows:
First of all, the raw materials should be carefully selected, and the benzene compounds containing chlorine and fluorine should be based on high purity, which is the foundation for the preparation of excellent products. Usually chlorofluorobenzene is selected as the starting material, because its structure is similar to the target product, which is conducive to subsequent reactions.
At the beginning of the reaction, a suitable reaction vessel should be carefully selected, preferably glass material, because of its high chemical stability, resistance to most chemical substances, and easy observation of the reaction process. The container should be clean and dry to prevent impurities from interfering with the reaction. The key to the
reaction lies in the implementation of the halogenation reaction. Iodine reagents, such as iodine elemental ($I_ {2} $), are often used, and accompanied by appropriate catalysts, such as copper salt catalysts. This catalyst can effectively increase the reaction rate and reduce the activation energy of the reaction, so that iodine atoms precisely replace hydrogen atoms at specific positions in the benzene ring. The reaction temperature also needs to be precisely controlled, usually maintained in a moderate range, about 50-80 degrees Celsius. If the temperature is too low, the reaction rate is slow and takes a long time; if the temperature is too high, it is easy to cause side reactions to breed and the purity of the product is damaged.
During the reaction process, it is necessary to continuously stir to make the reactants fully contact to ensure that the reaction is carried out At the same time, it should be operated in an inert gas environment, such as nitrogen atmosphere, to avoid contact between the reactants and oxygen, and to avoid side reactions such as oxidation.
After the reaction is completed, the product needs to be carefully separated and purified. First, by extraction, select a suitable organic solvent, such as dichloromethane, and extract the product from the reaction system. After extraction, the organic solvent is removed by distillation to obtain a crude product.
The crude product is then deeply purified by column chromatography. Select a suitable silica gel column, and use a specific proportion of eluent, such as a mixture of petroleum ether and ethyl acetate, to separate the two according to the polarity difference between the product and the impurity. The product of 3-chloro-4-fluoroiodobenzene with a purity of 98% can be obtained through this process.

3-Chloro-4-fluoroiodobenzene, with a purity of 98%, many precautions should be kept in mind when storing and transporting. This chemical substance is very active and dangerous.
First words storage, when looking for a cool, dry and well-ventilated place. Because it is quite sensitive to temperature and humidity, high temperature and humidity can easily cause qualitative changes and damage its purity. It must be kept away from fire and heat sources to prevent it from being heated and changing, causing accidents. And it should be separated from oxidants, strong alkalis and other substances. Due to its chemical properties, it is easy to react violently when encountering such substances, endangering safety. Where it is stored, the logo must be clear so that it can be identified, and it needs to be checked regularly to see if there is any leakage or qualitative change.
As for transportation, the carrier must have professional qualifications. The packaging should be solid and reliable, and it should be strictly protected from water, moisture and collisions. During transportation, it is important to keep the driving safe and stable to avoid its bumps and vibrations, which will cause damage to the packaging. It is also not allowed to be exposed to the hot sun for a long time, or to stop in a humid place for a long time. The escort must be familiar with the characteristics of this object and emergency methods. In case of an emergency, it can be disposed of quickly to ensure the safety of people and goods. The transportation vehicle should also be regularly inspected to ensure that it is in good condition and there is no risk of leakage All of these are important points that should not be ignored when storing and transporting 3-chloro-4-fluoroiodobenzene.