8-oxo-8H-indeno[2,1-b]thiophene-2-carboxylic acid

8-oxo-8H-indeno [2,1-b] thiophene-2-carboxylic acid, which is the English name of an organic compound. In the ancient classical style of "Tiangong Kaiwu", the description of its chemical structure should be as follows:
The name of this compound, "8-oxo", refers to its molecular structure at position 8 with a carbonyl group (= O), which is like the pillar of a building, supporting a corner of the molecule at a specific position; "8H" indicates that position 8 is occupied by hydrogen atoms, just like a specific sign in a corner of the building.
In "indeno [2,1 - b] thiophene", "indeno" has the structure of indeno, which is similar to that of a pavilion, and the structure of indene is partially fused with other parts; "[2,1 - b]" is a specific connection method, which is similar to the tenon and mortise structure of the pavilion connection, which is rigorous and orderly; "thiophene" is a thiophene structure, and the thiophene ring is like a delicate window lattice, which is embedded in the overall structure.
And "-2 - carboxylic acid" is clearly connected with a carboxyl group (-COOH) at two positions, which is like the foyer of a building, giving the molecule specific chemical activity and reaction characteristics.
In summary, the chemical structure of 8-oxo-8H-indeno [2,1-b] thiophene-2-carboxylic acid is composed of the parent structure of indenothiophene, which is connected to the carbonyl group at the 8 position and the carboxylic group at the 2 position. Each part of the structure is connected, such as tenon-mortise fit, to jointly construct this unique organic compound structure.

8-Oxo-8H-indeno [2,1-b] thiophene-2-carboxylic acid, which has many physical properties. Its properties are mostly solid, but the specific appearance may vary slightly due to preparation conditions and purity, or it is a crystalline powder, or a block shape, the color may be nearly white, or slightly yellow.
When it comes to the melting point, it is within a specific range, but the exact value is also affected by impurities and other factors. The determination of the melting point is a key indicator for its purity and characteristics. Its solubility is also an important property. In organic solvents, such as dichloromethane, N, N-dimethylformamide, etc., it has a certain solubility, which is caused by the interaction between the functional groups contained in the molecular structure and the solvent. However, in water, the solubility is relatively small, due to the difference between the molecular polarity and water.
In addition, the compound has a characteristic absorption peak in the ultraviolet-visible spectrum due to the conjugated system and specific functional groups, which can be identified and analyzed accordingly. Its infrared spectrum also shows the characteristic vibration absorption peak of the corresponding functional group, such as the stretching vibration peak of the carboxyl group, which provides an important basis for structure analysis.

8-Oxy-8H-indeno [2,1-b] thiophene-2-carboxylic acid, Chinese name 8-oxo-8H-indeno [2,1-b] thiophene-2-carboxylic acid. This compound has a wide range of uses and is a key raw material for the creation of new drugs in the field of medicinal chemistry. Due to its special chemical structure and activity, it can be chemically modified and modified to synthesize compounds with specific biological activities, which can play a role in a variety of disease targets, such as anti-cancer, anti-inflammatory, and antibacterial drug development.
In the field of materials science, this compound can prepare materials with special photoelectric properties. Its structure endows the material with unique light absorption and emission characteristics, which can be used in the manufacture of organic Light Emitting Diode (OLED), solar cells and other optoelectronic devices, or can optimize device performance and improve photoelectric conversion efficiency.
In the field of organic synthetic chemistry, 8-oxo-8H-indeno [2,1-b] thiophene-2-carboxylic acid is an important intermediate. With its carboxyl group and other functional groups, it can undergo a variety of organic reactions, such as esterification, amidation, etc., to construct complex organic compounds, enrich the content and methods of organic synthetic chemistry, and promote the development of organic synthesis technology. In conclusion, 8-oxo-8H-indeno [2,1-b] thiophene-2-carboxylic acids have important uses in many fields and are of great significance to the development of related fields.

The synthesis method of 8-oxo-8H-indeno [2,1-b] thiophene-2-carboxylic acid is described in detail.
To prepare this compound, one method can be obtained from a suitable starting material and achieved through a multi-step reaction. The choice of starting material is crucial, and it is often necessary to have functional groups that can gradually construct the structure of the target molecule.
Or a compound containing a thiophene ring can be used as a base to introduce a halogen atom at a specific position of the thiophene ring through a halogenation reaction. This halogen atom can provide an active check point for subsequent reactions. Then, through the nucleophilic substitution reaction, an appropriate carbon chain fragment is added. The selection of this fragment needs to meet the construction requirements of the indenothiophene structure in the target molecule.
When constructing the indene ring part, a suitable cyclization reaction can be used. For example, through reactions such as nucleophilic addition in the molecule, the carbon chain is cyclized to form an indene ring structure. In this process, the control of the reaction conditions is very critical, such as the choice and dosage of temperature, solvent, and catalyst, all of which will affect the reaction process and yield.
After the initial formation of the indenothiophene skeleton, it needs to be oxidized to obtain the structure of the 8-oxygen generation in the target molecule. The commonly used oxidizing agent can be selected according to the specific situation of the reaction, and the conditions of the oxidation reaction need to be carefully regulated to prevent the occurrence of side reactions such as excessive oxidation.
Furthermore, in order to introduce the carboxyl group at the target position, an appropriate carboxylation reagent can be selected. Through nucleophilic substitution or other related reactions, the carboxyl group is successfully introduced at the 2-position of the thiophene ring, resulting in the final 8-oxo-8H-indo [2,1-b] thiophene-2-carboxylic acid. < Br >
Synthesis of this compound requires fine operation in each step, strict control of reaction conditions, and accurate separation and identification of intermediates in order to improve yield and purity and achieve the purpose of synthesis.

I look at what you are asking about "8-oxo-8H-indeno [2,1-b] thiophene-2-carboxylic acid", which is a special chemical substance. However, it is difficult to determine the price in the market. The price of these chemicals often changes due to many reasons.
First, the purity can vary depending on the price. If the purity is extremely high and the preparation is difficult, the price will be high; if the purity is slightly lower and the use is different, the price will be slightly cheaper. Second, the state of supply and demand is also the key. If the demand for this product is wide and the supply is small, the price will rise; if the demand is small and the supply is large, the price will fall. Third, the preparation method and cost also affect its price. If the preparation requires complex processes and expensive raw materials, the price is not low; if the preparation is easy and the cost is controllable, the price may be close to the people.
And because I have not been involved in the "Tiangong Kaiwu", I don't know if there is any price of such chemicals. But according to common sense, the price in the market is based on supply and demand and cost. In today's chemical market, there are many changes. To know the exact price of this "8-oxo-8H-indeno [2,1-b] thiophene-2-carboxylic acid", you need to check the chemical raw material trading platform, consult professional chemical reagent suppliers, or explore its approximation.