3-thiophenecarboxylic acid, 2-amino-4,5-dimethyl-

2-% hydroxy-4,5-dimethyl-3-pentanoic acid, this substance is colorless to light yellow liquid, with a special odor, soluble in organic solvents such as alcohols and ethers, slightly soluble in water. Its melting point is low, it is liquid at room temperature, the boiling point is moderate, it is relatively stable when heated, and can decompose or other chemical reactions under certain conditions.
This substance is chemically active, and the hydroxyl group and the ketone group make it both acidic and reducing. The hydroxyl group can undergo esterification reaction, and the alcohol can be used to form esters under the action of the catalyst, which can be used to prepare flavors or special organic synthesis intermediates. The ketone group can undergo an addition reaction, such as the addition of hydrocyanic acid to form cyanols, which is used in organic synthesis to grow carbon chains. In addition, its carboxyl groups can participate in acid-base neutralization reactions and react with bases to form corresponding carboxylic salts.
In the industrial field, 2-% hydroxy-4,5-dimethyl-3-pentanoic acid can be used as a raw material for organic synthesis, through a series of reactions to prepare drugs, fragrances and polymer material monomers. Due to its special structure and properties, it may have potential biological activity in pharmaceutical research and development, and can be further optimized as a lead compound to develop new drugs. In the fragrance industry, its unique odor and reaction characteristics can be used to formulate fragrance products with special aromas.

2-% hydroxy-4,5-dimethyl-3-pentanoic acid has many chemical properties. It is acidic and can neutralize with bases because it contains carboxyl groups. For example, if it interacts with sodium hydroxide, the hydrogen in the carboxyl group dissociates, combines with hydroxide ions to form water, and generates corresponding carboxylic salts and water, which is a characterization of its acidity.
And because of its carbonyl group, it has active chemistry. Carbonyl groups are electrophilic and can undergo addition reactions. In terms of addition to hydrocyanic acid, cyanide negative ions attack the nucleophilic attack of carbonyl carbon atoms, forming new carbon-carbon bonds and forming cyanohydrin-containing structural products. This reaction can increase the carbon chain in organic synthesis and is an important reaction path.
The hydroxyl group also affects its properties. Hydroxyl groups can participate in esterification reactions. Under acid catalysis, they interact with alcohols. The hydrogen in the hydroxyl group binds to the hydroxyl group in the alcohol hydroxyl group to form water, and the rest are connected to form esters. This property is commonly used in the preparation of ester compounds.
At the same time, the compound has multiple substituents, and the spatial structure also affects its properties. The steric resistance and electronic effect of different substituents can change the molecular reactivity and physical properties. Physical properties such as melting point and boiling point are different from simple carboxylic acids or ketones due to the presence of substituents. In the field of organic synthesis, due to its diverse reactivity, it can be used as a key intermediate to construct complex organic molecular structures through different reaction paths.

2-% amino-4,5-dimethyl-3-furanocarboxylic acid is an important organic compound, which is widely used in the fields of medicine, pesticides and materials.
In the field of medicine, it is a key intermediate for drug synthesis. By modifying and modifying its structure, drug molecules with different physiological activities can be synthesized. For example, it can be used to synthesize antibacterial drugs, which interact with targets in bacteria by virtue of their specific chemical structure, inhibit the growth and reproduction of bacteria, and thus achieve the effect of treating bacterial infections. It may also be used to synthesize antiviral drugs, interfere with the replication process of viruses, and provide new avenues for antiviral therapy.
In the field of pesticides, 2-% amino-4,5-dimethyl-3-furancarboxylic acid can be used as an important raw material for the synthesis of new pesticides. High-efficiency, low-toxicity and environmentally friendly insecticides can be developed to precisely kill pests through unique mechanisms of action, while reducing the impact on the environment and non-target organisms; or herbicides can be prepared to inhibit the growth of weeds, ensure the growth space and nutrient supply of crops, and improve crop yield and quality.
In the field of materials, it can participate in the synthesis of some functional materials. For example, the introduction of this structural unit into polymer materials can endow materials with special properties, such as improving the stability, solubility or optical properties of materials, opening up new directions for the development of materials science, promoting the development and application of new materials, and meeting the needs of different fields for special performance materials.
In summary, 2-% amino-4,5-dimethyl-3-furanecarboxylic acid plays a key role in promoting the development of related industries due to its important uses in many fields.

The synthesis method of 2-% hydroxy-4,5-dimethyl-3-methoxybenzoic acid is not directly described in "Tiangong Kaiwu", but the chemical principles contained in ancient alchemy, pharmacy, metallurgy and other processes can be used for reference.
To synthesize this substance, you can try to use natural substances as starting materials. Ancient alchemists were quite familiar with the characteristics of gold and stone medicinal materials, or they could follow their ideas to explore natural substances containing related structural fragments. For example, some plant or mineral components, after ingenious extraction and transformation, may be able to lay the foundation for synthesis.
First, natural compounds containing hydroxyl, methyl and other groups can be found. The ancients made a lot of achievements in the field of herbal medicine, and many plants have components or required structural rudiments. After extraction and separation, pure starting materials are obtained. For example, hydroxyl aromatics are extracted from specific herbs, using ancient extraction methods, using wine or water as a solvent, and "boiling" according to "water flying" and other methods, to obtain relatively pure things.
Second, the introduction of methoxy and methyl groups. Although the ancient chemical process is simple, it is not lack of exquisite. Taking the introduction of methoxy groups as an example, methanol can be tried as a raw material and reacted with the starting material under appropriate conditions. Although there is no modern precise catalytic method, the ancients may use high temperature and specific catalysts (such as some metal oxides) to promote the reaction. For example, in the process of alchemy, high temperature is often used to promote the transformation of substances. It can be analogous to this. Set a high temperature environment to promote the combination of methanol and raw materials to form methoxy groups.
Third, build a carboxyl group. Ancient metallurgical and pharmaceutical processes often involve oxidation reactions, whereby specific groups can be oxidized to carboxyl groups. For example, metal salts are used as catalysts and heated in an aerobic environment to gradually oxidize suitable groups in the raw materials to carboxyl groups. This process can refer to the oxidation principle of ancient hydrometallurgy, and use the regulation of chemical reaction conditions to realize the construction of carboxyl groups.
The synthesis process requires many attempts and optimizations. In order to seek longevity, ancient alchemists constantly explored in the refining of medicinal pills and accumulated many experience in chemical reactions. Although the synthesis of 2% hydroxy-4,5-dimethyl-3-methoxybenzoic acid was not a common practice at that time, it was possible to explore the spirit and chemical practice wisdom, and over time, through repeated experiments, or to explore a feasible synthetic path.

I look at this "2-amino-4,5-dimethyl-3-furanoic acid", and it is difficult to determine the price in the market. The price of this product often changes due to many reasons, such as the abundance of raw materials, the difficulty of the production method, the amount of demand, and the chaos of the current situation.
If the raw materials are abundant, it is convenient to harvest, and there are few people who want it, the price may be cheap. On the contrary, the raw materials are rare, the production is complicated, and the users are in a hurry, the price will be high.
In the past, due to the market conditions, the price of this product may be stable due to the abundance of raw materials and the orderly production. However, there was also a shortage of raw materials, and the process was difficult, so the price rose.
The current price is based on past examples and market conditions, or in the realm of [X] gold to [X] gold. However, the market is unstable, and the price is uncertain. This is only a rough estimate. The actual price must be carefully inspected by the current market conditions and consulted with merchants. Never take my estimate as true, the market is prone to change, and it should be done with caution.