Dimethyl Pimelate, with the CAS number 1732-08-7, is a chemical compound with the molecular formula C9H16O4. It appears as a clear, colorless to pale - yellow liquid. The molar mass of Dimethyl Pimelate is approximately 188.22 g/mol. It has a boiling point in the range of 242 - 245°C at 760 mmHg and a density of around 1.037 g/cm³ at 25°C. This compound is insoluble in water but soluble in common organic solvents such as ethanol, ether, and acetone.
Dimethyl Pimelate has several important applications in different industries. In the fragrance industry, it is used as a fixative and a middle - note ingredient. Its pleasant, slightly sweet and fruity aroma can enhance the longevity and depth of perfumes. In the field of plastics and polymers, it can be used as a plasticizer. As a plasticizer, it can improve the flexibility, ductility, and processability of plastics, making them more suitable for various manufacturing processes. Additionally, in the synthesis of pharmaceuticals and agrochemicals, Dimethyl Pimelate serves as an important intermediate. It participates in a variety of chemical reactions to produce more complex and valuable compounds.
When using Dimethyl Pimelate in the fragrance industry, it should be added in an appropriate proportion according to the formula of the perfume. Usually, the proportion ranges from 1% - 10%, depending on the desired intensity of the aroma. Before adding it to the perfume base, it is recommended to test it on a small scale to ensure the compatibility with other fragrance ingredients.
In the plastics industry, when using it as a plasticizer, it needs to be thoroughly mixed with the plastic resin during the plastic processing stage. The addition amount is typically determined by the type of plastic and the required properties. Generally, it can account for 5% - 20% of the total mass of the plastic mixture.
In the synthesis of pharmaceuticals and agrochemicals, strict reaction conditions such as temperature, pressure, and reaction time need to be followed. Professional chemists should operate in a well - equipped laboratory environment and use appropriate protective equipment.
Fragrance Industry: A well - known perfume brand was facing the problem of short - lasting fragrance in one of their new perfume formulations. After adding 5% Dimethyl Pimelate to the perfume base, the longevity of the perfume was significantly improved. Consumers reported that the perfume could stay on the skin for up to 8 hours, compared to the previous 3 - 4 hours. The pleasant middle - note brought by Dimethyl Pimelate also received positive feedback, enhancing the overall quality of the perfume.
Plastics Industry: A plastic manufacturing company was producing PVC pipes. They found that the pipes were too brittle and prone to cracking during installation. By adding 10% Dimethyl Pimelate as a plasticizer during the extrusion process, the flexibility of the PVC pipes was greatly improved. The pipes could now withstand more bending and pressure without cracking, which met the requirements of the construction projects and increased the market competitiveness of the products.
Pharmaceutical Synthesis: In a pharmaceutical research project, Dimethyl Pimelate was used as an intermediate to synthesize a new anti - inflammatory drug. Through a series of chemical reactions under strict laboratory conditions, a high - yield and high - purity product was obtained. The new drug showed excellent anti - inflammatory effects in pre - clinical trials, indicating the importance of Dimethyl Pimelate in pharmaceutical synthesis.
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