4-(4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl)-Benzenesulfonic Acid

4- (4,5-dihydro-3-methyl-5-oxo-1H-pyrazole-1-yl) benzenesulfonic acid has a wide range of main application fields. In the field of medicine, this compound may be used as a pharmaceutical active ingredient. With its unique chemical structure, it may interact with specific targets in organisms to achieve the effect of treating diseases. For example, it participates in the inhibition process of enzymes, interferes with specific biological signaling pathways, and provides opportunities for the development of new drugs. In the field of materials science, it can play a role in the surface modification of materials due to its special chemical properties, improving the surface hydrophilicity, corrosion resistance and other properties of materials, or it can be used in the preparation of functional polymer materials, giving materials special optical and electrical properties. In the field of agriculture, it can be developed as a new type of pesticide, which can show inhibitory or killing activity to specific pests or bacteria by virtue of its structural characteristics, providing new strategies for agricultural pest control. And in organic synthetic chemistry, it is often used as a key intermediate. With the help of its functional group characteristics, through various chemical reactions, more complex organic compounds can be constructed, which can help the development of organic synthetic chemistry and lay the foundation for the creation of new organic materials and drugs.

4- (4,5-diene-3-methyl-5-oxo-1H-pyrrole-1-yl) benzenesulfonic acid is an organic compound. Its physicochemical properties are crucial for the application of this compound in many fields.
Looking at its physical properties, under normal temperature and pressure, this compound may be in a solid state. Because many organic compounds containing benzene rings and specific functional groups are mostly in this state. Its melting point is within a certain range due to intermolecular forces. The presence of benzene rings in the molecule enhances the intermolecular π-π accumulation, or increases the melting point.
In terms of solubility, because the sulfonic acid group is a hydrophilic group, this compound may have a certain solubility in polar solvents, such as water and alcohols. However, the molecule still contains hydrophobic benzene rings and other organic groups, and it may have a certain solubility in non-polar solvents. The specific solubility is determined by the relative ratio and interaction of each group.
When it comes to chemical properties, sulfonic acid groups are acidic and can be neutralized with bases to form corresponding salts. This property makes the compound an acidic catalyst in some chemical reactions. The double bonds in the molecule, due to the unsaturated bonds, have high reactivity and can undergo addition reactions. For example, by adding hydrogen to form saturated compounds, and adding halogen to introduce halogen atoms. In addition, the hydrogen atom on the methyl group and pyrrole group may undergo a substitution reaction under specific conditions, which provides the possibility for the structural modification of the compound.
From this perspective, 4- (4,5-diene-3-methyl-5-oxo-1H-pyrrole-1-yl) benzenesulfonic acid has unique physical and chemical properties and may have important application value in organic synthesis, catalysis and other fields.

To prepare 4- (4,5-dihydro-3-methyl-5-oxo-1H-pyrazole-1-yl) benzenesulfonic acid, there are three methods.
One is the construction of pyrazole rings. First, 3-methyl-1H-pyrazole-5-one is obtained by condensation cyclization with suitable methyl ketone and hydrazine compounds under the catalysis of acid or base. After reacting with halogenated benzenesulfonic acid, nucleophilic substitution is used to obtain the target product. The raw materials are easy to obtain in this way, but the cyclization step requires controlled conditions to improve the yield and purity.
The modification method of benzenesulfonic acid. Based on benzenesulfonic acid derivatives, through a series of reactions, pyrazole-containing structure fragments are introduced at specific positions in the benzene ring. The benzenesulfonic acid is first halogenated, and then coupled with metal-organic reagents containing pyrazole structure to obtain the target product. The method is simple, but the preparation of metal-organic reagents and the reaction conditions are harsh.
The third is the total synthesis method. Starting from simple raw materials, the structure of pyrazole ring and benzenesulfonic acid is gradually constructed. Starting with diethyl malonate and methylamine, the intermediate containing pyrazole ring is obtained through multi-step reaction, and then through sulfonation and other reactions, the target product is obtained. This step can flexibly adjust the structure and control the purity of the product
All these methods have their own advantages and disadvantages. In actual synthesis, the appropriate method should be selected according to the availability, cost, yield and purity of raw materials to achieve the purpose of efficient preparation.

What is the price of 4- (4,5-dihydro-3-methyl-5-oxo-1H-pyrazole-1-yl) benzoic acid in the market?
Looking at this compound, its structure has a specific combination of chemical functional groups. In today's chemical market, its price is subject to multiple factors. First, the availability and cost of raw materials are critical. If the starting materials required to synthesize this acid are scarce or difficult to prepare, the cost will increase, which will in turn increase its price. Second, the ease of synthesis also affects. If the synthesis route is long and requires multi-step reactions, or involves harsh reaction conditions, such as high temperature, high pressure, special catalysts, etc., the cost of production will rise and the market price will increase accordingly. Third, the market demand situation also affects its price. If this acid has a wide range of applications in medicine, material science and other fields, and the supply exceeds the demand, the price may increase; conversely, if the demand is low, the price may be suppressed.
However, I do not have the exact market price information. For details, please consult a professional chemical reagent supplier, or consult the relevant chemical product trading platform, market survey report, etc. The price of cover chemical products often changes from time to time, and the price of products from different suppliers and different purity grades also varies. Only through these channels can we obtain accurate market prices.

Manufacturers of 4- (4,5-dihydro-3-methyl-5-oxo-1H-pyrazole-1-yl) benzenesulfonic acid mainly include the following:
In the chemical industry, many large chemical raw material manufacturers may be involved in the manufacture of such products. For example, some domestic enterprises focusing on fine chemicals have the ability to produce such compounds with their deep technical accumulation and advanced production equipment. These enterprises have long been committed to the research and development and production of fine chemicals, and have mature control over the synthesis process of various complex organic compounds.
In addition, the production bases of some foreign chemical companies in China, with their world-leading chemical technology and rich experience, may also be the main producers of this product. They have a global production network and have professional processes and standards for the production of compounds with special structures and functions.
At the same time, some companies that are transformative of scientific research achievements should not be underestimated. They rely on the cutting-edge scientific research achievements of universities or scientific research institutions to quickly apply advanced synthesis methods to actual production, and may become an emerging production force for such more complex organic sulfonic acid compounds. These companies focus on technological innovation and product quality, and play an important role in meeting the market demand for high-end fine chemical products.