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What is the main use of 3,3,5-triiodothyroid acetic acid (free acid)?
3,3,5-Trimethyladipic acid (itaconic acid) is one of the organic compounds. Its main uses are quite extensive.
First, in the field of polymer synthesis, itaconic acid is a key monomer. It can be copolymerized with a variety of monomers, such as acrylic acid, acrylamide, etc. Through this copolymerization reaction, the resulting polymer has excellent properties. Take the manufacture of superabsorbent resins as an example. This resin plays an important role in hygiene products such as diapers and sanitary napkins. With its strong water absorption, it can effectively keep dry. In the field of coatings, this polymer can enhance the adhesion and water resistance of coatings, so that the quality of coatings can be improved.
Second, in the field of medicine, itaconic acid has also emerged. Because of its biological activity, it can be used as a drug intermediate. Through chemical modification and other means, drugs with specific pharmacological effects can be prepared, providing new ways for disease treatment.
Third, in the food industry, itaconic acid can act as a food additive. Because of its certain acidity, it can adjust the pH value of food, thereby improving the flavor and taste of food. At the same time, it also contributes to food preservation, which can inhibit the growth of microorganisms and prolong the shelf life of food.
Fourth, in agriculture, some polymers synthesized by itaconic acid can be made into agricultural water preservatives. After being applied to the soil, it can effectively maintain soil moisture, improve soil water retention capacity, help crops grow better in arid environments, and improve crop yield and quality.
What are the physical and chemical properties of 3,3,5-triiodothyroid acetic acid (free acid)?
3,3,5-Trimethyladipic acid (estradiic acid) is one of the most important compounds. Its physicality is important, and I will describe it to you today.
First of all, its physical rationality. Under normal conditions, this substance is mostly solidified. Its melting properties are specific. Generally speaking, it probably depends on a certain degree of stability. The melting value of this fusion is important for the determination and improvement of the substance. As for the outside, it is often white crystalline solid, and the phase is uniform in the earth. Its solubility is also known. It has a certain solubility in common solvents such as ethanol and ether, but the solubility in water is low. This is due to the proportion and distribution of hydrophobic groups in the molecule.
Repeat its chemical properties. 3,3,5-trimethyladipic acid contains a carboxyl functional group, which gives it acidity. It can be used to neutralize and reverse, generating water of the phase. For example, when oxidizing, the carboxyl group can be combined with oxygen to form water molecules, while the carboxyl group can be synthesized by carboxylic acid. In addition, because of its carboxyl group, it can be esterified and reversed. Under the appropriate catalysis and reaction conditions, the alcohol can be esterified and reversed to generate ester compounds. This reaction is widely used in the synthesis field, and can be used to synthesize esters with specific functions, such as plasticizers, fragrances, etc. And the carbon in the compound molecule is low, so that it has a certain degree of qualitative transformation. However, under the oxidation or high-end components, it may also cause oxidation and other reactions, resulting in the modification of the molecule and the change of its properties.
What is the market price of 3,3,5-triiodothyroacetic acid (free acid)?
Today, there are 3,3,5-trimethyladipic acid (cyclohexic acid), what is the market? This is a chemical business, and the price is not fixed, and it is often affected by factors such as.
First, supply and demand are low. If the market demands it, and the production and supply are limited, it must be low; on the contrary, if the supply is low and the demand is low, it may decrease.
Second, the cost of production is high. The cost of raw materials, the method of manufacturing, and the cost of energy consumption are all cost factors. The cost of raw materials is high, and the cost of production is also high; if the cost can be reduced, there may be a step.
Third, the market is low.
Fourth, order policy. Specific demand or demand, policy incentives or restrictions on production can all affect the market.
Therefore, in order to know the market, it is necessary to contact the chemical raw materials market, suppliers, or the platform of suppliers.
What are the applications of 3,3,5-triiodothyroid acetic acid (free acid) in the field of medicine?
3,3,5-Trimethyladipic acid (citric acid) is widely used in the field of medicine.
Citric acid has excellent chelation and acid-base regulation capabilities, and is often used as a pH regulator in pharmaceutical preparations. Take oral liquids and injections as an example, by adjusting the pH value, the stability and effectiveness of drugs can be guaranteed. In injections, a suitable pH environment can prevent drug degradation, precipitation, and improve drug quality and safety.
And citric acid can be used as a chelating agent in pharmaceutical preparations. It can complex with metal ions, such as copper, iron, etc., block metal ions from catalyzing drug oxidation, protect active ingredients, and extend the shelf life of drugs.
Furthermore, citric acid is also useful in sustained and controlled release preparations. Because of its certain biocompatibility and degradability, it can be used as a skeleton material or a porogenic agent to regulate the release rate of drugs, achieve long-term and stable drug release, provide convenience for patients to use drugs, and increase drug compliance.
In addition, citric acid is also used in the cleaning and disinfection of the pharmaceutical industry. Its acidity can remove dirt and impurities in equipment and pipelines, and maintain a clean production environment. And some citric acid derivatives have antibacterial and antiviral properties, which have potential value in the field of medical disinfection.
In summary, 3,3,5-trimethyladipic acid (citric acid) plays a key role in the field of medicine, in the development, production, and preservation of medicines, and promotes the development of the pharmaceutical industry.
What is the preparation method of 3,3,5-triiodothyroid acetic acid (free acid)?
欲制3,3,5 - 三甲基己二酸(游離酸),其法如下:
先取適量之3 - 甲基 - 1 - 戊烯,置於反應釜中,加入適量之催化劑,如過渡金屬之化合物,常以鈀、鉑等之鹽類或配合物為佳。於一定之溫度及壓力下,通入一氧化碳與氫氣之混合氣體,使進行氫甲醯化反應。此反應可使烯烴轉化為醛類化合物,生成3 - 甲基戊醛。
次將所制得之3 - 甲基戊醛收集,另入新釜,加入適量之鹼性催化劑,如氫氧化鈉、氫氧化鉀等,加熱使進行縮合反應。兩分子之3 - 甲基戊醛於鹼性條件下縮合,形成含烯鍵之醛類中間體。
繼而,將此中間體以適量之氧化劑處理,如過氧化氫、高錳酸鉀等,於適宜之反應條件下,使醛基及烯鍵皆被氧化,轉化為羧基,從而得3,3,5 - 三甲基己二酸。反應完畢後,以適當之方法提純,如重結晶、萃取等,可得純淨之3,3,5 - 三甲基己二酸。