3,4-Dimethylchlorobenzene

Linshang Chemical

Specifications

HS Code

281732

Chemical Formula C8H9Cl
Molecular Weight 142.61 g/mol
Appearance Colorless to light yellow liquid
Odor Characteristic aromatic odor
Density 1.07 g/cm³ at 20 °C
Boiling Point 192 - 194 °C
Melting Point -25 °C
Solubility In Water Insoluble
Solubility In Organic Solvents Soluble in many organic solvents like ethanol, ether
Vapor Pressure 0.13 kPa at 39.8 °C
Flash Point 73 °C
Refractive Index 1.529 - 1.531 at 20 °C

As an accredited 3,4-Dimethylchlorobenzene factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

Packing & Storage
Packing 500 - gram bottle of 3,4 - dimethylchlorobenzene, securely sealed for chemical storage.
Storage 3,4 - dimethylchlorobenzene should be stored in a cool, well - ventilated area, away from sources of ignition. Keep it in a tightly closed container made of materials compatible with the chemical, such as steel or certain plastics. Store it separately from oxidizing agents and other reactive chemicals to prevent potential reactions. Also, ensure proper labeling for easy identification and safety compliance.
Shipping 3,4 - dimethylchlorobenzene is shipped in well - sealed containers, following strict hazardous material regulations. It's transported by specialized carriers, ensuring proper handling to prevent spills and maintain safety during transit.
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3,4-Dimethylchlorobenzene 3,4-Dimethylchlorobenzene
General Information
Where to Buy 3,4-Dimethylchlorobenzene in China?
As a trusted 3,4-Dimethylchlorobenzene manufacturer, we deliver: Factory-Direct Value: Competitive pricing with no middleman markups, tailored for bulk orders and project-scale requirements. Technical Excellence: Precision-engineered solutions backed by R&D expertise, from formulation to end-to-end delivery. Whether you need industrial-grade quantities or specialized customizations, our team ensures reliability at every stage—from initial specification to post-delivery support.
Frequently Asked Questions

As a leading 3,4-Dimethylchlorobenzene supplier, we deliver high-quality products across diverse grades to meet evolving needs, empowering global customers with safe, efficient, and compliant chemical solutions.

What are the main uses of 3,4-dimethylchlorobenzene?
3,4-Dimethylphenol has the following main uses:
First, in the field of pharmaceutical chemistry, it is often the key raw material for the synthesis of many drugs. For example, when synthesizing antibacterial drugs, 3,4-Dimethylphenol can be converted into antibacterial substances through a series of chemical reactions to fight various bacteria and protect human health. Its unique chemical structure endows it with unique reactivity and selectivity in drug synthesis, and can accurately construct the specific structure of drug molecules to ensure the efficacy and safety of drugs.
Second, it also plays an important role in the fragrance industry. Because of its special odor, it can become an important component of fragrance formulations after proper preparation and treatment. It can give the fragrance a unique smell, either a fresh feeling or a mellow taste. It is widely used in perfumes, air fresheners, detergents and other products to add a pleasant fragrance and improve the quality and attractiveness of the product.
Third, it is also indispensable in the field of plastics and rubber additives. It can be added to plastics and rubber products as an antioxidant. When plastics and rubber are exposed to environmental factors such as light, heat and oxygen, they are prone to aging and degradation, while 3,4-dimethylphenol can capture free radicals, delay the oxidation process, prolong the service life of plastics and rubber products, and maintain good physical properties and appearance during long-term use.
Fourth, in the coating industry, it can be added to coatings as a fungicide and preservative. During use, coatings are susceptible to microbial erosion and deterioration, which affects their performance and service life. 3,4-Dimethylphenol can effectively inhibit the growth and reproduction of microorganisms, ensure the stability and quality of coatings, and enable coatings to maintain good coating effects in various environments for a long time.
What are the physical properties of 3,4-dimethylchlorobenzene?
3,2,4-Dimethylpentane is an organic compound. Its physical properties are as follows:
Looking at it, at room temperature and pressure, this substance is a colorless and transparent liquid, with a pure and transparent appearance, like a clear spring, without the slightest impurities visible.
Smell it, it has a weak and special smell, which is not pungent and intolerable, but also has its own unique smell, such as being in a specific organic chemical atmosphere.
In terms of its boiling point, it is about 80 ° C - 90 ° C. When the temperature gradually rises, the molecules gain enough energy to break free from each other and change from liquid to gas, just like birds that break free from their cages, soaring freely in the air. The melting point of
is roughly around -130 ° C. In such a low temperature environment, the molecular activity slows down sharply, embracing each other closely, solidifying from a flowing liquid to a solid state, as if entering a sleeping state.
Its density is less than that of water, about 0.66 g/cm ³. If it is placed in the same container as water, it is like a light feather floating on the water surface, and it is distinct.
In terms of solubility, it is difficult to dissolve in water. It is like a stranger who is incompatible with water, but it can dissolve with most organic solvents such as hexane, ether, benzene, etc. in any ratio, just like like like-minded friends, and blend with each other. Due to its molecular structure characteristics, the force between water molecules is weak, but it is more compatible with the force between organic solvent molecules, so there is this difference in solubility.
What are the chemical properties of 3,4-dimethylchlorobenzene?
3,4-Dimethylphenol is an organic compound with interesting chemical properties.
This compound has the typical characteristics of phenols. The presence of phenolic hydroxyl groups gives it a certain acidity. Because the solitary pair electrons of the oxygen atom in the phenolic hydroxyl group form a conjugated system with the benzene ring, the polarity of the hydrogen-oxygen bond is enhanced, and the hydrogen atom is more likely to leave in the form of protons, so its acidity is slightly stronger than that of alcohols. However, compared with inorganic acids, its acidity is still weaker.
The phenyl ring of 3,4-dimethylphenol is connected with methyl groups. The methyl group is the power supply group, which can increase the electron cloud density of the benzene ring through induction effect and superconjugation effect. The change of the electron cloud density has a great impact on the electrophilic substitution activity of the phenyl ring. Due to the increase in the electron cloud density of the phenyl ring, electrophilic reagents are more likely to attack the phenyl ring, resulting in higher electrophilic substitution activity than phenol. Common electrophilic substitution reactions, such as halogenation reactions, nitration reactions, sulfonation reactions, etc., can occur under appropriate conditions. Taking the halogenation reaction as an example, under mild conditions, halogens can replace hydrogen atoms on the phenyl ring, and mainly occur in the adjacent and para-sites of the phenolic hydroxyl group. The phenolic hydroxyl group is an ortho-and para-site group, which is conjugated with the phenyl ring, so that the ortho-and para-site electron cloud densities are relatively higher.
In addition, the phenolic hydroxyl group of 3,4-dimethylphenol can participate For example, it can react with active metals such as sodium metal to generate corresponding phenates and release hydrogen. Phenolic hydroxyl groups can also react with acyl halides, acid anhydrides, etc. to form ester compounds. This esterification reaction is widely used in organic synthesis and can be used to prepare esters with specific structures to meet the needs of different fields.
At the same time, due to the presence of phenyl rings and phenolic hydroxyl groups in the molecule, 3,4-dimethylphenol has certain oxidation resistance. In some systems, it can be used as an antioxidant to inhibit the oxidation process of other substances through its own oxidation reaction, thus playing a protective role.
In summary, 3,4-dimethylphenol is rich in chemical properties and has important application value in many fields such as organic synthesis, materials science, and medicine.
What are the synthesis methods of 3,4-dimethylchlorobenzene?
To produce 3% 2C4-dimethylphenol, there are two possible methods. One is chemical synthesis, and the other is biosynthesis.
First, the chemical synthesis method mainly uses phenolic compounds as raw materials. O-cresol can be selected as the starting material, and methyl groups can be introduced by alkylation reaction. In this process, metal halides such as zinc chloride and aluminum trichloride are often used as catalysts to react with halogenated alkanes (such as chloromethane) at specific temperatures and pressures. After the reaction, many separation and purification steps such as distillation, extraction, and recrystallization are taken to obtain high-purity 3% 2C4-dimethylphenol. However, this route requires specific reaction conditions and equipment, and the catalyst may have an impact on the environment.
In addition, biosynthesis can utilize the catalytic action of microorganisms or enzymes. Some microorganisms, such as certain bacteria or fungi, can synthesize 3% 2C4-dimethylphenol through the metabolic pathway in vivo with specific carbon and nitrogen sources as substrates under suitable culture conditions. This process is mild, environmentally friendly, and selective. However, the microbial culture conditions need to be finely regulated, and the yield may be difficult to meet the requirements of large-scale production. Further research is needed to improve efficiency.
To sum up, chemical synthesis is mature but has high environmental requirements, while biosynthesis green requires technological breakthroughs. The method of preparation depends on actual needs, cost considerations, and environmental protection requirements.
What are the precautions for storing and transporting 3,4-dimethylchlorobenzene?
3,4-Dimethylphenol is an organic compound. When storing and transporting, the following matters should be paid attention to:
First, the storage place must be dry and well ventilated. Because of its flammability, if the storage environment is humid or the air circulation is not smooth, it is easy to cause moisture and deterioration, or even cause fire and other dangerous situations. For example, if placed in a dark and humid place, it may react with water vapor and affect the quality.
Second, it should be kept away from fires and heat sources. Because it is very easy to burn in case of open flames and hot topics, such as operating on open flames near storage places, or using unprotected heat source equipment, it may cause danger. It is necessary to keep it at a safe distance from these dangerous factors.
Third, it should be stored separately from oxidizing agents and acids, and should not be mixed. 3,4-Dimethylphenol comes into contact with oxidizing agents or undergoes violent chemical reactions, and coexistence with acids may also cause its chemical properties to change, resulting in unsafe factors.
Fourth, when transporting, be sure that the container does not leak, collapse, fall, or damage. If there is a problem with the container during transportation, resulting in the leakage of 3,4-Dimethylphenol, it will not only cause environmental pollution, but also easily lead to fire, poisoning and other accidents.
Fifth, the transportation vehicle should be equipped with the corresponding variety and quantity of fire equipment and leakage emergency treatment equipment. In the event of a fire or leakage during transportation, timely response measures can be taken to reduce the degree of harm.
Sixth, during transportation, it should be protected from exposure to the sun, rain, and high temperature. Prolonged exposure or exposure to high temperature will increase the temperature of 3,4-dimethylphenol, increase the risk of combustion, explosion, etc., and high temperature may affect its chemical stability.