1,4-Benzenediol, 2,3,5,6-Tetrachloro-

Linshang Chemical

Specifications

HS Code

961504

Chemical Formula C6H2Cl4O2
Molar Mass 247.9
Appearance White to off - white solid
Odor May have a faint, characteristic odor
Melting Point Approximately 250 - 254 °C
Boiling Point Decomposes before boiling
Solubility In Water Insoluble
Solubility In Organic Solvents Soluble in some organic solvents like ethanol, acetone
Stability Stable under normal conditions, but may react with strong oxidizing agents
Hazardous Nature Toxic, may cause skin and eye irritation, harmful if swallowed or inhaled

As an accredited 1,4-Benzenediol, 2,3,5,6-Tetrachloro- factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

Packing & Storage
Packing 250g of 2,3,5,6 - tetrachloro - 1,4 - benzenediol packaged in a sealed chemical - grade bottle.
Storage 1,4 - Benzenediol, 2,3,5,6 - tetrachloro - should be stored in a cool, dry, well - ventilated area. Keep it away from heat sources, open flames, and oxidizing agents. Store in a tightly closed container to prevent moisture absorption and potential reaction with air components. Label containers clearly to avoid misuse.
Shipping 1,4 - Benzenediol, 2,3,5,6 - tetrachloro - should be shipped in tightly sealed, corrosion - resistant containers. Ensure proper labeling for its hazardous nature. Ship via approved carriers following all relevant chemical transportation regulations.
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1,4-Benzenediol, 2,3,5,6-Tetrachloro- 1,4-Benzenediol, 2,3,5,6-Tetrachloro-
General Information
Where to Buy 1,4-Benzenediol, 2,3,5,6-Tetrachloro- in China?
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Frequently Asked Questions

As a leading 1,4-Benzenediol, 2,3,5,6-Tetrachloro- 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 physical properties of 1, 4 - benzenediol, 2, 3, 5, 6 - tetrachloro -
1% 2C4 - benzenediol (1,4 - catechol), also known as hydroquinone, 2% 2C3% 2C5% 2C6 - tetrachloro- (2,3,5,6 - tetrachloro-) connected to it shall refer to 2,3,5,6 - tetrachloro - 1,4 - catechol. The following is a description of its physical properties:
2,3,5,6 - tetrachloro - 1,4 - catechol, which is usually white to light yellow crystalline powder. It is relatively stable at room temperature, but it is easy to cause combustion in case of open flame and hot topic.
When it comes to the melting point, it is between 138 and 140 ° C. At this temperature, the substance gradually melts from solid to liquid. Its boiling point is higher, and the specific value varies slightly depending on the exact measurement conditions.
In terms of solubility, it is slightly soluble in water because its molecular structure contains hydrophilic hydroxyl groups, but also hydrophobic benzene rings and multiple chlorine atoms, which makes it limited in solubility in water. However, it is soluble in organic solvents such as ethanol, ether, acetone, etc., and can be well dispersed in such solvents.
Its density is slightly higher than that of water, and it will sink to the bottom when placed in water. And because of its solid form, it is not volatile at room temperature and pressure. However, if heated to a certain extent, some molecules may escape into the air. This substance will exhibit a certain degree of hygroscopicity under certain conditions and needs to be properly stored in a dry place.
What are the chemical properties of 1,4 - benzenediol, 2,3,5,6 - tetrachloro -
1% 2C4 - benzenediol%2C2%2C3%2C5%2C6 - tetrachloro - that is, 2,3,5,6 - tetrachloro-hydroquinone, this is an organic compound. Its chemical properties are unique and quite important.
This compound has phenolic universality. The phenolic hydroxyl group is active and easy to be oxidized. In case of strong oxidizing agents, the phenolic hydroxyl group will be oxidized to a quinone structure. Because the phenolic hydroxyl group can provide active hydrogen atoms, it can participate in many redox reactions. It is often used as a reducing agent or in the electron transfer process in the field of organic synthesis.
It can also undergo substitution reactions. The neighbor of the phenolic hydroxyl group has a high density of electron clouds and is vulnerable to attack by electrophilic reagents. Electrophilic substitution reactions such as halogenation, nitrification, and sulfonation mostly occur at these locations. For example, when interacting with halogenating reagents, halogen atoms can be introduced at the ortho and para-positions of phenolic hydroxyl groups. The chlorine atoms of
2,3,5,6-tetrachloro-hydroquinone are also reactive. Under certain conditions, chlorine atoms can be replaced by nucleophiles, such as hydroxyl groups, amino groups, etc., to construct new organic compound structures, providing a variety of paths for organic synthesis.
In addition, it has different behaviors in acid-base environments. Phenolic hydroxyl groups are acidic and can react with bases to form phenolates. This property makes them play a key role in some processes that require regulation of pH to promote reactions or change the solubility of compounds. Due to its special structure and properties, 2,3,5,6-tetrachloro-hydroquinone has applications in the fields of medicine, pesticides, materials, etc., and occupies an important position in organic synthetic chemistry.
What is the main use of 1, 4 - benzenediol, 2, 3, 5, 6 - tetrachloro -
1% 2C4 - benzenediol (hydroquinone), 2% 2C3% 2C5% 2C6 - tetrachloro- (tetrachlorohydroquinone) has important uses in many fields.
In the field of chemical synthesis, tetrachlorohydroquinone can be used as a key intermediate. With its unique chemical structure, it can participate in various organic reactions and help synthesize polymer materials with special properties. For example, when preparing high-performance engineering plastics, tetrachlorohydroquinone participates in the reaction, which can optimize the heat resistance and chemical corrosion resistance of the material, so that the prepared plastic products can still maintain stable physical and chemical properties under harsh environments such as high temperature and strong acid and alkali. It is used in aerospace, automobile manufacturing and other industries that require extremely high material properties.
In the field of medicine, tetrachlorohydroquinone and its derivatives have shown potential medicinal value. Some studies have revealed that it may have antibacterial and antiviral activities. Researchers use tetrachlorohydroquinone as the starting material and develop new antibacterial drugs through a series of chemical modifications and reactions, which is expected to solve the problem of bacterial resistance and provide a new way for clinical treatment of infectious diseases.
In the field of electronic materials, tetrachlorohydroquinone also has outstanding performance. It can be used to prepare functional coatings for electronic components. Due to its good electronic conductivity and stability, it can improve the performance and service life of electronic components. For example, in the manufacturing of semiconductor chips, the use of tetrachlorohydroquinone to participate in the preparation of special coatings can enhance the heat dissipation and electrical conductivity of the chip, ensure the stability and reliability of the chip during high-speed operation, and promote the development of electronic devices towards miniaturization and high performance.
In addition, in the dye industry, tetrachlorohydroquinone can be used to synthesize new dyes. Through rational design of the molecular structure, the synthesized dyes have the advantages of bright color, light resistance, and washable, and are widely used in the textile printing and dyeing industry to improve the aesthetics and durability of textiles.
What is the preparation method of 1, 4 - benzenediol, 2, 3, 5, 6 - tetrachloro -
The method of preparing 2,3,5,6-tetrachloro-1,4-catechol is not detailed in ancient books, but according to today's chemical theory, one or two can be deduced.
One of the methods may be initiated by hydroquinone. Hydroquinone, which has an active phenolic hydroxyl group, can be substituted with chlorine sources. Chlorine sources such as chlorine gas, under suitable reaction conditions, enter the reaction system of hydroquinone. The reaction environment needs to be carefully controlled, and the temperature should not be too high to prevent excessive chlorination or side reactions. If the temperature is too high, it may cause damage to the phenyl ring structure, or generate unnecessary polychlorination by-products. Generally speaking, low temperatures to moderate temperatures, such as 0 ° C to 50 ° C, are more suitable. And the reaction needs to be carried out in an inert gas atmosphere, such as nitrogen protection, to avoid the oxidation of phenolic hydroxyl groups.
Another idea can use p-benzoquinone as a raw material. The conjugated structure of p-benzoquinone makes it easy to add chlorine atoms. First, with an appropriate reducing agent, such as sodium sulfite, part of p-benzoquinone is reduced to an intermediate of hydroquinone structure, and then chlorine gas is introduced to carry out the chlorination reaction. In this process, factors such as the amount of reducing agent, reaction time and temperature need to be carefully controlled. Excessive or long reaction time of reducing agent, or excessive reaction, affects the purity of the product; conversely, if the dosage is insufficient or the time is too short, and the amount of intermediate generated is small, the product yield is low.
Or phase transfer catalysis can be used. A phase transfer catalyst, such as a quaternary ammonium salt, is added to the reaction system. This can promote better contact between the chlorinated reagent in the aqueous phase and the hydroquinone or p-quinone in the organic phase, and accelerate the reaction process. The type and dosage of phase transfer catalysts have a great impact on the reaction effect. Different quaternary ammonium salts have different catalytic activities due to their structural differences, and need to be screened by experiments. And if the dosage is too much, it may increase the cost and introduce new impurities; if the dosage is too small, the catalytic effect will be poor.
The preparation of 2,3,5,6-tetrachloro-1,4-catechol requires comprehensive consideration of raw materials, reaction conditions, catalysts and many other factors, and repeated experiments can be optimized to obtain ideal results.
1,4 - benzenediol, 2,3,5,6 - tetrachloro - what effect does it have on the environment
1% 2C4 - benzenediol (hydroquinone), 2% 2C3% 2C5% 2C6 - tetrachloro - (tetrachloro derivatives) These substances have many effects on the environment.
Hydroquinone and its chlorine-containing derivatives are in the environment and can cause harm to water bodies, soils, etc. If they enter water bodies, they will cause water quality to deteriorate. Hydroquinone has certain toxicity and can interfere with the normal physiological activities of aquatic organisms, affecting their growth and reproduction. For example, if fish are in water bodies containing such substances for a long time, they may experience physiological disorders and even die. And its chlorine-containing derivatives, due to the presence of chlorine atoms, enhance stability, are more difficult to degrade, and continue to accumulate in water bodies, which will further exacerbate the damage to aquatic ecosystems.
In the soil environment, these substances will change the physical and chemical properties of the soil, affecting the community structure and function of soil microorganisms. Soil microorganisms play a key role in soil fertility and material circulation, and the existence of such substances may inhibit the growth of beneficial microorganisms, resulting in damage to soil ecological functions, which in turn affects plant growth. When plant roots absorb nutrients in the soil, they may also absorb these harmful substances, causing abnormal plant physiological metabolism and affecting crop yield and quality.
Furthermore, if such substances enter the atmosphere through volatilization, they will participate in atmospheric chemical reactions, affect air quality, and pose a potential threat to human health and the atmospheric environment. Some volatile substances may irritate the human respiratory tract, eyes, etc. Long-term exposure may also cause more serious health problems. In short, 1% 2C4-benzenediol and its 2% 2C3% 2C5% 2C6-tetrachloro-derivatives will have negative effects on the environment in many ways, which need to be taken seriously and properly handled.