3 - (2 - aminoethyl) - N '- [3 - (diethoxyacetyl) propyl] - 1,2 - ethylenediamine, which has a wide range of application fields. In the field of pharmaceutical chemistry, it can be used as a drug intermediate. Due to its special chemical structure, it can participate in a variety of drug synthesis reactions and help to construct drug molecules with specific physiological activities. For example, in the research and development of some cardiovascular diseases, as a key structural fragment, it helps to improve the affinity and specificity of drugs to targets, thereby enhancing drug efficacy. In the field of materials science, it can be used to prepare functional polymer materials. When polymerized with a specific monomer, it can endow the polymer material with unique properties, such as improving the hydrophilicity and biocompatibility of the material. For example, when preparing biodegradable polymer materials, adding this substance can make the material more suitable for application in the biological environment, and is expected to be used in tissue engineering scaffolds, drug sustained-release carriers, etc. also has applications in the field of surfactants. Its molecular structure contains both hydrophilic groups and hydrophobic groups, which are surface active. It can reduce the surface tension of liquids and improve the properties of emulsification, dispersion and solubilization. It can be added to cosmetics, detergents and other products to enhance product stability and cleaning effect. In industrial production, it can also be used as a metal ion chelating agent. The nitrogen atoms in its molecular structure can form stable complexes with metal ions for the separation, purification and wastewater treatment of metal ions. For example, in the treatment of electroplating wastewater, heavy metal ions can be effectively chelated, the heavy metal content of wastewater can be reduced, and it can be discharged up to standard.

3 - (2 - hydroxyethyl) - N '- [3 - (diethoxyethylbenzoyl) propyl] - 1,2 - ethylenediamine, this substance has the following chemical properties: It contains multiple functional groups in its molecular structure, and hydroxyl groups, amines, etc. endow it with certain hydrophilicity. Hydroxy (-OH) can participate in a variety of chemical reactions, such as esterification with acids to form ester compounds. The presence of amine groups (-NH2O, etc.) makes the substance alkaline and can neutralize with acids to form salts. Due to the existence of a long carbon chain structure in the molecule, including ethyl, propyl and other hydrocarbyl moieties, which endows it with a certain lipid solubility. At the same time, the presence of benzoyl structure makes the compound may have certain physical and chemical properties related to aromaticity. Under appropriate conditions, the benzene ring may undergo substitution reactions, such as halogenation and nitrification. In addition, the ether bond (-O-) in the molecule also has a certain impact on its solubility and chemical stability. It is relatively stable, but under some special conditions, such as strong acid, high temperature, etc., the ether bond may break and other reactions. Overall, due to its unique structure, the compound may have potential application value in the fields of organic synthesis, medicinal chemistry, etc., and can participate in the synthesis of various organic compounds as an intermediate.

In the process of storing 3- (2-aminoethyl) -N '- [3- (diethoxyethyl thiocarbonyl) propyl] -1,2-ethylenediamine, the following points should be noted: This compound has a specific chemical structure and properties, and the control of temperature during storage is crucial. If the temperature is too high, it may cause the thermal movement of the molecule to intensify, promote the acceleration of chemical reactions, such as oxidation, decomposition, etc., and then reduce its purity and stability; if the temperature is too low, it may cause the substance to solidify or crystallize, affecting its physical state and subsequent performance. Therefore, the storage temperature should be strictly controlled in a suitable range according to its physical and chemical characteristics. It is generally recommended to store it in a cool place to prevent temperature fluctuations from adversely affecting it. Humidity is also a key factor. If the ambient humidity is too high, moisture is prone to react with the compound, or act as a catalyst for certain chemical reactions, causing it to deteriorate. Therefore, the storage environment must be kept dry, and the low humidity state can be maintained by auxiliary means such as desiccants to avoid water vapor erosion. Lighting conditions cannot be ignored either. Some organic compounds are sensitive to light, and this substance may be no exception. Light may induce luminescent chemical reactions and change its molecular structure. Therefore, it should be stored in a dark environment, such as in a brown bottle, or in a dark place to prevent direct light exposure. In addition, it is also necessary to pay attention to the choice of storage containers. The compound may react with certain materials, so containers that are chemically stable and do not interact with it should be selected, such as specific glass or inert plastic containers, to ensure its stability during storage and avoid damage to the quality of the compound due to container material problems.

To prepare 3- (2-aminoethyl) -N '- [3- (diethoxyformyl propyl) ] -1,2-ethylenediamine, the preparation method is as follows: First, take an appropriate amount of starting materials and react through multiple steps. The first step is to carefully select the appropriate reactants and mix them in the reactor in the appropriate proportion. The temperature, pressure and reaction time of the reaction environment are all key factors and must be strictly controlled. The temperature should be maintained at a specific range so that the reaction can proceed smoothly and efficiently, neither too slowly nor too excessively and produce by-products. Subsequent steps, each step needs to follow specific chemical principles and operating procedures. The reaction products should be separated and purified in time to ensure the purity of the intermediate products, and then ensure the quality of the final products. Separation and purification methods may be used such as distillation, extraction, recrystallization, etc. During distillation, the required substances and impurities are separated according to the difference in the boiling point of each component; extraction uses the different solubility of the solute in different solvents to achieve the enrichment of the target components; recrystallization is by controlling the temperature and solvent conditions to precipitate the product in a pure crystal form. During the entire preparation process, monitoring the reaction process is also indispensable. Modern analytical techniques, such as chromatographic analysis, spectral analysis, etc., can be used to grasp the progress of the reaction and the purity of the product in real time. Only in this way can the reaction be precisely regulated and successfully prepared 3- (2-aminoethyl) -N '- [3- (diethoxyformyl propyl) ] -1,2-ethylenediamine. And when operating, be sure to strictly follow safety procedures to ensure the safety of the experimenter and the smooth conduct of the experiment.

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