3,4-ETHYLENEDIOXOTHIOPHENE-2,5-DICARBOXYLIC ACID

3% 2C4 - ETHYLENEDIOXOTHIOPHENE - 2% 2C5 - DICARBOXYLIC + ACID corresponds to 3,4 -ethylenedioxythiophene-2,5 -dicarboxylic acid in Chinese. Its chemical structure is as follows: the thiophene ring is the core structure, and a five-membered ethylenedioxyring is formed by connecting two oxygen atoms at the 3,4 positions of the thiophene ring, and a carboxyl group (-COOH) is connected at the 2,5 positions of the thiophene ring, respectively. This structure endows the compound with certain acidity and special electronic properties and reactivity. Due to its unique structure, it may have many applications in the fields of organic synthesis, materials science, etc. For example, it can be used as a key monomer to build specific functional organic materials, participate in polymerization reactions, and modify its structure through chemical modification, which can regulate the electrical and optical properties of materials.

3,4-ethylenedioxythiophene-2,5-dicarboxylic acid has a wide range of uses. In the field of materials science, it is a key monomer in the synthesis of conductive polymers. Taking poly (3,4-ethylenedioxythiophene) (PEDOT) as an example, 3,4-ethylenedioxythiophene-2,5-dicarboxylic acid can be synthesized through specific polymerization. PEDOT has excellent electrical conductivity and good environmental stability, and is widely used in electronic devices such as organic Light Emitting Diode (OLED), solar cells, field effect transistors, etc. In OLEDs, PEDOT can be used as a hole transport layer to help improve the luminous efficiency and stability of the device; in solar cells, it can optimize the charge transport process, thereby improving the photoelectric conversion efficiency of the battery.
In the field of chemical synthesis, 3,4-ethylenedioxythiophene-2,5-dicarboxylic acid can act as an intermediate in organic synthesis for the construction of many complex organic compounds due to its unique structure. With its carboxyl group and thiophene ring activity check point, it can carry out esterification, amidation, nucleophilic substitution and other multi-component reactions, providing an effective path for the synthesis of organic molecules with specific functions and structures, and injecting vitality into the development of organic synthesis chemistry. < Br >
In the field of biomedicine, after rational chemical modification, it may be able to exhibit certain biological activities. For example, by linking with specific bioactive molecules, or it can be prepared as a targeted drug carrier, using its structural properties to achieve targeted delivery to specific cells or tissues, improve drug efficacy and reduce toxic and side effects, and open up new directions for drug development. In short, 3,4-ethylenedioxythiophene-2,5-dicarboxylic acid has important uses and potential application value in many fields.

3% 2C4 - ETHYLENEDIOXOTHIOPHENE - 2% 2C5 - DICARBOXYLIC + ACID is 3,4 - ethylenedioxythiophene - 2,5 - dicarboxylic acid, which has the following physical properties:
Its normal or solid, the appearance may be white to light yellow crystalline powder state. Looking at its solubility, the degree of solubility in water is limited, because of its molecular structure, although the carboxyl group can interact with water to some extent, but there are thiophene ring and ethylene dioxy and other hydrophobic parts, so the overall water solubility is not good. However, it has relatively good solubility in organic solvents, such as dichloromethane, N, N-dimethylformamide (DMF), etc., because these organic solvents can form van der Waals forces or other weak interactions with molecules, which can help them disperse.
Regarding the melting point, due to the interaction of hydrogen bonds and van der Waals forces between molecules, a specific energy is required to overcome these forces to cause lattice disintegration, and the melting point is about a certain range (the specific value varies depending on impurities and test conditions). Above this temperature, the thermal motion of the molecules intensifies, and the lattice structure is destroyed, so it changes from a solid state to a liquid state.
Its density is also one of the inherent physical properties, depending on the way the molecules are deposited and the relative molecular mass. Under specific conditions, there is a definite density value, which reflects the mass distribution of the molecules in a unit volume.
In addition, the substance may have a certain degree of hygroscopicity. Water vapor in the air may be attracted by its carboxyl group, resulting in an increase in mass. When storing, pay attention to moisture prevention.

3% 2C4 - ETHYLENEDIOXOTHIOPHENE - 2% 2C5 - DICARBOXYLIC ACID is 3,4 - ethylenedioxythiophene - 2,5 - dicarboxylic acid, and its synthesis methods are various, which are described in detail below.
First, it can be started from thiophene derivatives. First, the thiophene is carboxylated under specific conditions to introduce carboxyl groups. Commonly used carboxylation reagents such as carbon dioxide can undergo nucleophilic substitution with thiophene under suitable catalyst and reaction conditions, and carboxyl groups can be introduced into the thiophene ring. Subsequently, cyclization is carried out to construct the ethylene dioxide structure. In this process, it is necessary to carefully select suitable alcohols and dehydrators, and at the right temperature and reaction time, promote the reaction of hydroxyl groups with specific positions on the thiophene ring to form a stable ethylene dioxide structure.
Second, sulfur-containing heterocyclic compounds are used as starting materials. Using its activity check point, carboxyl groups and ethylene dioxy groups are gradually introduced through a series of nucleophilic substitution and oxidation reactions. For example, some sulfur-containing heterocyclic compounds and halogenated alkanes undergo nucleophilic substitution reactions under basic conditions, add suitable substituents, and then oxidize the specific groups into carboxylic groups, and at the same time construct ethylene dioxy structures.
Third, transition metal-catalyzed coupling reactions can also be used. A suitable halogenated thiophene derivative is selected with borate esters or other nucleophiles containing ethylene dioxy structure. Under the action of transition metal catalysts (such as palladium catalysts), a coupling reaction occurs to form the basic skeleton of the target product. Then, the skeleton is modified and carboxyl groups are introduced. This method requires strict reaction conditions, and precise control of catalyst dosage, reaction temperature and time is required to improve the reaction yield and selectivity.
There are many methods for synthesizing 3,4-ethylenedioxythiophene-2,5-dicarboxylic acid, each with its own advantages and disadvantages. In actual operation, the appropriate synthesis path should be carefully selected according to factors such as raw material availability, reaction conditions, and cost.

What you are inquiring about is the price range of 3,4-ethylene dioxy thiophene-2,5-dicarboxylic acid in the market. However, this price often varies due to many reasons, such as differences in quality, purchase quantity, supply and demand situation, and differences in vendors.
In the past, if this product was in the market, if it was of ordinary commercial quality, it would be purchased in small quantities, and the price per gram might range from tens to hundreds of yuan. However, if the purchase quantity is quite large, reaching the number of kilograms, the price per gram may be reduced to within tens of yuan due to the effect of scale.
If you want high-purity products, suitable for scientific research and other fine fields, the price will be high. Each gram or more than 100 yuan, or even hundreds of yuan high, because of its difficult preparation and complicated purification.
And the market supply and demand situation, also affects its price. If there are many applicants and there are few suppliers, the price will rise; on the contrary, if the supply exceeds the demand, the price may be lower. To know the exact price, when you want to know the supplier of chemical raw materials, the name of the chemical reagent, and carefully examine the changes in market conditions, you can get the near-real price.