2% 2C4-dihydroxyvaleric acid, although this substance is not detailed in "Tiangong Kaiwu", it must have a wide range of uses according to common sense.
Looking at various chemical industries, 2% 2C4-dihydroxyvaleric acid can be used as a raw material for organic synthesis. In the process of organic synthesis, it can be the cornerstone of building complex organic molecules. Due to the hydroxyl groups contained in its structure, it has active chemical properties and can be combined with other compounds by many chemical reactions, such as esterification and etherification, to prepare a variety of organic products. Such as the preparation of special esters, which can be used in the genus of fragrances and plasticizers to give fragrances a unique aroma, and plasticizers add good flexibility to plastic products.
Furthermore, in the field of pharmaceutical chemistry, it may also have important applications. It can be used as a synthetic drug intermediate. The synthesis of many drugs requires intermediates with specific structures as bridges to achieve the desired pharmacological activity. The special structure of 2% 2C4-dihydroxyvaleric acid may meet the needs of some drug synthesis. After chemical modification and transformation, drugs with therapeutic effects can be prepared to cure various diseases in the world.
In the field of materials science, it may be involved in the preparation of special materials. By means of copolymerization with other monomers, the properties of the material may be improved. If this acid is introduced into the structure of the polymer material, it may change the hydrophilicity and biocompatibility of the material, so that the material can develop its talents in the fields of biomedical materials and environmentally friendly materials.
Although the details of "Tiangong Kaiwu" are not detailed, from today's scientific perspective, 2% 2C4-dihydroxyvaleric acid has potential and important uses in many fields such as chemical industry, medicine, materials, etc. It is a compound that cannot be underestimated.

2% 2C4-dihydroxyvaleric acid, its physical properties are as follows:
This substance is mostly in the state of colorless to slightly yellow crystalline powder, with a fine texture and a faint luster visible under light. Its smell, or a very light special smell, is not pungent, but is still mild.
In terms of solubility, it has a certain solubility in water. Water is the softest in the world, and this substance can be mixed with it, because the hydroxyl groups contained in its molecular structure can form hydrogen bonds with water molecules. When placed in water, with stirring or standing, gradually disperse and dissolve, making the solution appear clear or slightly cloudy. In common organic solvents such as ethanol and acetone, there are also different degrees of solubility. Ethanol is mild in nature, and it can interact with dihydroxyvaleric acid molecules due to similar chemical properties, causing it to dissolve. Acetone has strong solubility, and for dihydroxyvaleric acid, it can be rapidly dispersed in it.
As for the melting point, it has been determined by many researchers and is about a certain temperature range. When heated, its molecular motion intensifies and the lattice structure is gradually destroyed. When it reaches the melting point, it gradually changes from a solid state to a liquid state. This process requires the absorption of specific heat to overcome the intermolecular force.
Its density is slightly different from that of water. If it is placed in water, it may sink or float depending on the density. This is determined by the compactness of its own molecules. Under different temperature environments, the density will also change slightly, but the amplitude is small, due to the effect of temperature on molecular spacing and motion state.
The above are all common physical properties of 2% 2C4-dihydroxyvaleric acid, which are used in various chemical, pharmaceutical and other fields as an important reference.

2% 2C4-dihydrofuran is also an organic compound. It is active and has a variety of chemical characteristics.
In terms of its chemical activity, it is based on the phenomenon of enol tautomerism. The double bond in the ring of 2% 2C4-dihydrofuran is rich in electrons, so it is easy to react with electrophilic reagents. In the case of hydrogen halide, the halogen atom is added to the carbon with less hydrogen in the double bond, and the hydrogen is added to the carbon with more hydrogen, following the Markov rule. And its ring is tensile and more active than the general saturated cyclic compound. Under appropriate conditions, it can open the ring and react to form a chain product.
Its nucleophilicity should not be underestimated. The oxygen atom on the ring has a lone pair of electrons, which can be used as a nucleophilic check point to react with electrophilic reagents. In nucleophilic substitution reactions, atoms or groups at specific positions on the ring can be replaced under suitable conditions.
In addition, 2% 2C4-dihydrofuran exhibits unique properties in redox reactions. It can be oxidized by appropriate oxidants, and the double bond or ring structure may be affected to form different oxidation products. When encountering reducing agents, a reduction reaction can occur, and part of the double bond or ring structure may be reduced.
is widely used in the field of organic synthesis because its structure contains unsaturated bonds and oxygen atoms. Or as a key intermediate, through various reactions, complex organic molecular structures are constructed. Its unique performance in many chemical reactions is valued by organic synthesis chemists, helping to create novel and valuable organic compounds.

The manufacturing method of 2% 2C4-dihydroxyvaleric acid is as follows:
To prepare 2% 2C4-dihydroxyvaleric acid, first take an appropriate amount of valeric acid as the starting material. Valeric acid has a carboxyl group and can be hydroxylated under specific conditions.
In a reaction kettle, the valeric acid is dissolved in a suitable organic solvent, such as dichloromethane, tetrahydrofuran, etc. Such solvents have good solubility and chemical stability, and do not side-react with the reaction reagents.
Subsequently, the hydroxylation reagent is slowly added. Commonly used hydroxylation reagents include compounds containing hydroxyl groups, such as hydrogen peroxide in combination with specific catalysts. The catalyst can be selected from transition metal salts such as iron salts and manganese salts, which can effectively reduce the activation energy of the reaction and accelerate the reaction process. When adding reagents, the reaction temperature and drip rate need to be strictly controlled. The temperature should be maintained in a moderate range, such as between 0 and 50 degrees Celsius, to prevent side reactions from occurring. If the temperature is too high, the valeric acid molecule may be over-oxidized or other rearrangement reactions may affect the purity and yield of the target product; if the temperature is too low, the reaction rate will be slow and take too long.
After the drip addition is completed, continue to stir for a period of time to make the reaction fully proceed. This process can be monitored by thin layer chromatography (TLC) or other analytical means. After the raw material point disappears or reaches the desired reaction level, the reaction will be terminated.
After the reaction is terminated, the reaction mixture is post-treated. The reaction solution is washed with an appropriate amount of water to remove unreacted hydrophilic impurities and some catalyst residues. The product is then extracted with an organic solvent, and the organic phase is collected after layering. The organic phase is dried with anhydrous sodium sulfate or magnesium sulfate to remove residual moisture.
Finally, the residual solvent and other impurities are removed by distillation, column chromatography and other separation and purification methods to obtain pure 2% 2C4-dihydroxyvaleric acid. During distillation, the temperature and pressure should be precisely controlled according to the boiling point characteristics of 2% 2C4-dihydroxyvaleric acid to achieve efficient separation. Column chromatography requires the selection of suitable stationary and mobile phases to ensure good separation of the product and impurities.

For 2% 2C4-dihydroxypentane, many matters must be paid attention to during storage and transportation.
This substance has specific physical and chemical properties. When it is stored, the first priority is to control the ambient temperature and humidity. It should be stored in a cool and dry place to prevent moisture and deterioration due to excessive humidity. If the temperature is too high, it may cause chemical reactions and damage its quality. For example, if placed in a high temperature and humid place, it may cause reactions such as hydrolysis to change its chemical structure and properties.
Furthermore, the storage must be kept well ventilated. If the ventilation is not smooth, the volatile gas of this substance will accumulate, which may increase safety or affect its own stability.
When transporting, packaging is extremely critical. Suitable packaging materials must be used to ensure good sealing to prevent leakage. Leakage not only causes material loss, but also poses a hazard to the environment and human body. And the means of transportation should also be clean and dry, without the risk of contamination by other impurities.
Also, severe vibration and collision should be avoided during transportation. 2% 2C4-dihydroxypentane or physical morphology changes due to vibration and collision, or even chemical reactions. If the packaging is damaged, substances escape, encounter external factors such as air and moisture, or there are unpredictable changes.
In addition, whether it is storage or transportation, there should be clear signs and records. The label should indicate the name, nature, hazardous characteristics, etc. of the substance so that relevant personnel can know. Records cover information such as storage time, transportation route, handling personnel, etc. Once a situation occurs, it can be traced and handled accordingly. In this way, the safety and stability of 2% 2C4-dihydroxypentane during storage and transportation can be ensured.