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5-[(1E)-2-(4-Chlorophenyl)Ethenyl]-1,3-Benzenediol
Linshang Chemical
|
HS Code |
577575 |
| Chemical Formula | C14H11ClO2 |
| Molecular Weight | 246.69 |
| Iupac Name | 5-[(1E)-2-(4-chlorophenyl)ethenyl]benzene-1,3-diol |
| Appearance | Solid (predicted) |
| Boiling Point | 434.9°C at 760 mmHg (predicted) |
| Melting Point | 192 - 194°C |
| Logp | 3.84 (predicted) |
| Water Solubility | Insoluble (predicted) |
| Density | 1.301 g/cm³ (predicted) |
| Vapor Pressure | 5.14E-09 mmHg at 25°C (predicted) |
As an accredited 5-[(1E)-2-(4-Chlorophenyl)Ethenyl]-1,3-Benzenediol factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 100g of 5-[(1E)-2-(4 - chlorophenyl)ethenyl]-1,3 - benzenediol in sealed chemical - grade vials. |
| Storage | Store 5-[(1E)-2-(4 - chlorophenyl)ethenyl]-1,3 - benzenediol in a cool, dry place, away from direct sunlight. Keep it in a tightly - sealed container to prevent exposure to air and moisture, which could potentially lead to degradation. Store separately from incompatible substances, like strong oxidizing agents, to avoid chemical reactions. |
| Shipping | 5 - [(1E)-2-(4 - chlorophenyl)ethenyl]-1,3 - benzenediol is shipped in accordance with chemical transport regulations. It's carefully packaged to prevent spills, with proper labeling indicating its nature, and transported by carriers experienced in handling such chemicals. |
Competitive 5-[(1E)-2-(4-Chlorophenyl)Ethenyl]-1,3-Benzenediol prices that fit your budget—flexible terms and customized quotes for every order.
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What are the chemical properties of 5- [ (1E) -2- (4-chlorophenyl) vinyl] -1,3-catechol
My question is about the chemical properties of ethyl (1E) -2- (4-cyanophenyl) propionate and 3-benzoyl. The chemical properties of these two are unique and allow me to elaborate.
(1E) -2- (4-cyanophenyl) propionate ethyl ester, its molecular structure contains cyano and ester groups. The cyanyl group has strong electron absorption, which makes the compound very different in electron clouds. The ester group gives it hydrolytic properties, and can be hydrolyzed into corresponding acids and alcohols under the catalysis of acids or bases. When exposed to bases, the ester bond breaks to form carboxylate and alcohol, which is a common ester hydrolysis reaction. Under certain conditions, the cyanyl group can be hydrolyzed to form a carboxyl group, or participate in reactions such as nucleophilic addition. Because its carbon atom is electrophilic, it is vulnerable to attack by nucleophilic reagents.
As for 3-benzoyl, it contains two acyl functional groups. The acyl group has a strong electron-absorbing conjugation effect, which reduces the electron cloud density of the benzene ring, which in turn affects the substitution reaction activity on the benzene ring. The compound can undergo acylation reaction, and the acyl group can be attacked by nucleophilic reagents, such as reacting with alcohols to form esters and reacting with amines to form amides. In addition, due to its conjugated structure, some reactions involving electron transfer and rearrangement may occur under light or heating conditions. Due to its large intra-molecular conjugate system, it also has unique performance on light absorption and emission, and may be applied to optics-related fields.
In summary, (1E) 2- (4-cyanophenyl) propionate ethyl ester and 3-benzenediformyl due to their respective functional groups and molecular structures exhibit diverse and unique chemical properties, which are of great significance in organic synthesis and many chemical fields.
(1E) -2- (4-cyanophenyl) propionate ethyl ester, its molecular structure contains cyano and ester groups. The cyanyl group has strong electron absorption, which makes the compound very different in electron clouds. The ester group gives it hydrolytic properties, and can be hydrolyzed into corresponding acids and alcohols under the catalysis of acids or bases. When exposed to bases, the ester bond breaks to form carboxylate and alcohol, which is a common ester hydrolysis reaction. Under certain conditions, the cyanyl group can be hydrolyzed to form a carboxyl group, or participate in reactions such as nucleophilic addition. Because its carbon atom is electrophilic, it is vulnerable to attack by nucleophilic reagents.
As for 3-benzoyl, it contains two acyl functional groups. The acyl group has a strong electron-absorbing conjugation effect, which reduces the electron cloud density of the benzene ring, which in turn affects the substitution reaction activity on the benzene ring. The compound can undergo acylation reaction, and the acyl group can be attacked by nucleophilic reagents, such as reacting with alcohols to form esters and reacting with amines to form amides. In addition, due to its conjugated structure, some reactions involving electron transfer and rearrangement may occur under light or heating conditions. Due to its large intra-molecular conjugate system, it also has unique performance on light absorption and emission, and may be applied to optics-related fields.
In summary, (1E) 2- (4-cyanophenyl) propionate ethyl ester and 3-benzenediformyl due to their respective functional groups and molecular structures exhibit diverse and unique chemical properties, which are of great significance in organic synthesis and many chemical fields.
What are the main uses of 5- [ (1E) -2- (4-chlorophenyl) vinyl] -1,3-catechol
In "Tiangong Kaiwu", 5 - [ (1E) - 2 - (4 - cyanoethyl) acetamido] - 1,3 - catechol, although this substance has no corresponding in ancient times, it can be compared to the chemical process at that time to understand its use.
5 - [ (1E) - 2 - (4 - cyanoethyl) acetamido] - 1,3 - catechol, the specific group in its structure gives unique chemical properties. In modern times, it is often used in organic synthesis. Although there is no such precise chemical concept in ancient times, it can be compared to dyeing and pharmaceutical related processes from the perspective of technology.
In ancient dyeing processes, various plants and minerals were used to extract colored substances and fix them on fabrics through chemical reactions. Some properties of this substance may be similar to the role of dyeing aids at that time, such as enhancing the binding force between dyes and fabrics, making dyeing firmer and longer lasting.
Ancient pharmaceuticals, often mixed with a variety of natural medicinal materials to obtain formulas. 5 - [ (1E) -2- (4-cyanoethyl) acetamido] -1,3-catechol If present at that time, or due to special chemical activity, participated in adjusting the reaction between drug components, changing the solubility and stability of the drug, and affecting the efficacy of the drug.
Although this specific substance is not contained in "Tiangong Kaiwu", according to the ancient chemical process ideas, starting from the chemical properties of the substance, it can be speculated that it is used in dyeing, pharmaceuticals and other fields or has similar functional uses, helping the ancients achieve specific technological purposes.
5 - [ (1E) - 2 - (4 - cyanoethyl) acetamido] - 1,3 - catechol, the specific group in its structure gives unique chemical properties. In modern times, it is often used in organic synthesis. Although there is no such precise chemical concept in ancient times, it can be compared to dyeing and pharmaceutical related processes from the perspective of technology.
In ancient dyeing processes, various plants and minerals were used to extract colored substances and fix them on fabrics through chemical reactions. Some properties of this substance may be similar to the role of dyeing aids at that time, such as enhancing the binding force between dyes and fabrics, making dyeing firmer and longer lasting.
Ancient pharmaceuticals, often mixed with a variety of natural medicinal materials to obtain formulas. 5 - [ (1E) -2- (4-cyanoethyl) acetamido] -1,3-catechol If present at that time, or due to special chemical activity, participated in adjusting the reaction between drug components, changing the solubility and stability of the drug, and affecting the efficacy of the drug.
Although this specific substance is not contained in "Tiangong Kaiwu", according to the ancient chemical process ideas, starting from the chemical properties of the substance, it can be speculated that it is used in dyeing, pharmaceuticals and other fields or has similar functional uses, helping the ancients achieve specific technological purposes.
What is the synthesis method of 5- [ (1E) -2- (4-chlorophenyl) vinyl] -1,3-catechol
To prepare 5- [ (1E) -2- (4-cyanobenzyl) acetyl] -1,3-benzodione, the synthesis method is as follows:
First take an appropriate amount of raw materials, in a clean reaction kettle, dissolved in a suitable organic solvent. Dichloromethane, N, N-dimethylformamide, etc. are often used as solvents, carefully selected according to the characteristics of the raw materials and reaction conditions.
Add a specific catalyst, this reaction or use base catalysts, such as potassium carbonate, sodium carbonate, etc., the dosage needs to be precisely controlled, generally depending on the molar ratio of the raw materials, about 1:1.2 to 1:1.5. The alkali can promote the formation of intermediates in the reaction and promote the reaction process.
Heat up to the appropriate temperature, usually between 40 and 60 ° C, to maintain this temperature, so that the reactants can fully react. Continuous stirring is required during the reaction process to ensure that the reactants are fully contacted and the reaction is uniform. The reaction lasts about 3-5 hours. During this period, the progress of the reaction is closely monitored by thin layer chromatography (TLC). When the raw material point is basically eliminated, the reaction is determined to be complete.
After the reaction is completed, pour the reaction solution into an appropriate amount of ice water to quench the reaction. Subsequently, the product is extracted with an organic solvent, and the yield of the product can be improved by multiple extractions. Combine the organic phases and dry them with anhydrous sodium sulfate to remove the
Finally, the organic solvent is removed by reduced pressure distillation to obtain the crude product. The crude product is further purified by column chromatography or recrystallization to obtain pure 5- [ (1E) -2- (4-cyanobenzyl) acetyl] -1,3-benzodione. Column chromatography selects suitable silica gel and elutes with different proportions of eluent; recrystallization selects suitable solvent according to the solubility characteristics of the product, and dissolves by heating, cooling crystallization, suction filtration and other steps to obtain high-purity product.
First take an appropriate amount of raw materials, in a clean reaction kettle, dissolved in a suitable organic solvent. Dichloromethane, N, N-dimethylformamide, etc. are often used as solvents, carefully selected according to the characteristics of the raw materials and reaction conditions.
Add a specific catalyst, this reaction or use base catalysts, such as potassium carbonate, sodium carbonate, etc., the dosage needs to be precisely controlled, generally depending on the molar ratio of the raw materials, about 1:1.2 to 1:1.5. The alkali can promote the formation of intermediates in the reaction and promote the reaction process.
Heat up to the appropriate temperature, usually between 40 and 60 ° C, to maintain this temperature, so that the reactants can fully react. Continuous stirring is required during the reaction process to ensure that the reactants are fully contacted and the reaction is uniform. The reaction lasts about 3-5 hours. During this period, the progress of the reaction is closely monitored by thin layer chromatography (TLC). When the raw material point is basically eliminated, the reaction is determined to be complete.
After the reaction is completed, pour the reaction solution into an appropriate amount of ice water to quench the reaction. Subsequently, the product is extracted with an organic solvent, and the yield of the product can be improved by multiple extractions. Combine the organic phases and dry them with anhydrous sodium sulfate to remove the
Finally, the organic solvent is removed by reduced pressure distillation to obtain the crude product. The crude product is further purified by column chromatography or recrystallization to obtain pure 5- [ (1E) -2- (4-cyanobenzyl) acetyl] -1,3-benzodione. Column chromatography selects suitable silica gel and elutes with different proportions of eluent; recrystallization selects suitable solvent according to the solubility characteristics of the product, and dissolves by heating, cooling crystallization, suction filtration and other steps to obtain high-purity product.
What are the precautions for 5- [ (1E) -2- (4-chlorophenyl) vinyl] -1,3-catechol during storage and transportation?
In "Tiangong Kaiwu", saltpeter and sulfur are the foundation of gunpowder, and their properties are very different. When combined, they can make explosions, and their power is amazing. However, the method of making fire in the Western country is also different. Its technique is gradually refined, and its power is increasing.
In the combination of saltpeter and sulfur, be careful. Saltpeter is strong, and it can ignite, which can help deflagration; sulfur is flammable, adding to its fire. The ratio of the two is related to the strength of the explosion, and it must be accurately measured, and it is not bad. And when the two are mixed, there should be no open flame and static electricity to prevent unexpected explosions, endangering life, destruction and utensils.
The environment for processing gunpowder is crucial. It is advisable to choose a dry and ventilated place, away from fire sources and water sources. If it is wet, the medicine is easy to deliquescent and loses its effectiveness; if it is near fire, it will increase the risk of ignition and explosion; if it is in contact with water, the medicine will be waste. The place of operation should be neat and orderly, and there should be no accumulation of debris, so as not to hinder the action and cause accidents.
Gunpowder is made, and caution is required for storage and transportation. Special equipment should be used to seal tightly to prevent it from moisture and leakage. The storage place should be cool, dry and ventilated, away from the place where people and animals live together, and special personnel should be set up to guard it, and fireworks are strictly prohibited. When transporting, pack it lightly and transport it steadily to avoid bumps and collisions, so as to prevent the medicine package from breaking and friction from igniting.
In short, the art of gunpowder is related to safety, and it should not be taken lightly from the combination of medicine to storage and transportation. A It must be handled with a rigorous attitude and scientific methods to ensure safety.
In the combination of saltpeter and sulfur, be careful. Saltpeter is strong, and it can ignite, which can help deflagration; sulfur is flammable, adding to its fire. The ratio of the two is related to the strength of the explosion, and it must be accurately measured, and it is not bad. And when the two are mixed, there should be no open flame and static electricity to prevent unexpected explosions, endangering life, destruction and utensils.
The environment for processing gunpowder is crucial. It is advisable to choose a dry and ventilated place, away from fire sources and water sources. If it is wet, the medicine is easy to deliquescent and loses its effectiveness; if it is near fire, it will increase the risk of ignition and explosion; if it is in contact with water, the medicine will be waste. The place of operation should be neat and orderly, and there should be no accumulation of debris, so as not to hinder the action and cause accidents.
Gunpowder is made, and caution is required for storage and transportation. Special equipment should be used to seal tightly to prevent it from moisture and leakage. The storage place should be cool, dry and ventilated, away from the place where people and animals live together, and special personnel should be set up to guard it, and fireworks are strictly prohibited. When transporting, pack it lightly and transport it steadily to avoid bumps and collisions, so as to prevent the medicine package from breaking and friction from igniting.
In short, the art of gunpowder is related to safety, and it should not be taken lightly from the combination of medicine to storage and transportation. A It must be handled with a rigorous attitude and scientific methods to ensure safety.
What are the effects of 5- [ (1E) -2- (4-chlorophenyl) vinyl] -1,3-catechol on the environment and human health?
The shadow of musk deer ergan and human health
The shadow of musk deer ergan and human health
Madam, let me describe it.
1. The shadow of musk deer ergan
The shadow of musk deer ergan
If it is in the natural environment, it will degrade rapidly due to its chemical properties. In the soil, it can be tired, causing soil physicochemical properties to be damaged. Soil pores, permeability or affected by it, affect plant root growth and absorption.
< Water, musk deer ergan can be dissolved in it, if the content is high, or cause water to melt. Aquatic organisms exist in water, and the water will affect their survival and reproduction. Such as plankton, or due to the stimulation of musk deer ergan, the physiological generation is stunted; or it is damaged, resulting in decreased fertility, blocked health, and even death, breaking the balance of aquatic life.
2. The shadow of health of musk deer ergan people
If people are exposed to musk deer ergan, the journey is too much, or the breathing is inhaled, or the skin is absorbed, or the mouth is injected.
Skin is connected, or the skin is sensitive, and the disease is caused. Breathing and inhalation, or stimulating the respiratory tract, causing cough, asthma, exposure during the period, or increasing respiratory diseases.
To enter the mouth, musk deer ergan enters the body, or dry people secrete. The secretory system is responsible for human physiology. If it is affected by stress, hormones are unbalanced, which leads to more health problems. For example, the reproductive system is affected, the sperm volume of men or men decreases, and the fertility of women or women is low. And studies have shown that musk deer ergan may be carcinogenic, exposed at the early stage, or increase the risk of cancer.
Of course, musk deer ergan's environment and human health cannot be ignored. We are careful to wait, add a tube to prevent it from being released, so that the environment and people can be well-being.
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