3,4-Difluorobenzonitrile (CAS 64248-62-0) is a high - quality chemical compound. It is well - known for its unique chemical properties. The molecular formula of 3,4 - Difluorobenzonitrile is C7H3F2N, and its molecular weight is approximately 139.1 g/mol. This compound appears as a white to off - white crystalline powder. It has a melting point in the range of 36 - 38°C and a boiling point of around 203°C. The density of 3,4 - Difluorobenzonitrile is about 1.30 g/cm³. It is soluble in some organic solvents such as ethanol, acetone, and chloroform, but has limited solubility in water.
3,4 - Difluorobenzonitrile plays a crucial role in various fields. In the pharmaceutical industry, it serves as an important intermediate for the synthesis of many drugs. It can be used to develop medications for treating a variety of diseases, including but not limited to anti - inflammatory drugs and anti - cancer drugs. The unique fluorine - containing structure of this compound can improve the pharmacological activity and bioavailability of the synthesized drugs.
In the field of agrochemicals, 3,4 - Difluorobenzonitrile is used as a key raw material for the production of pesticides. The introduction of the difluorobenzonitrile group can enhance the insecticidal, fungicidal, and herbicidal activities of pesticides, which helps to improve crop yields and protect crops from pests and diseases.
It also has applications in the field of materials science. For example, it can be used in the synthesis of some high - performance polymers. The resulting polymers may have excellent thermal stability, chemical resistance, and mechanical properties, which can be used in aerospace, automotive, and other high - tech industries.
When using 3,4 - Difluorobenzonitrile, strict safety precautions should be taken. First, it should be stored in a cool, dry, and well - ventilated place, away from heat sources and incompatible substances. During handling, appropriate personal protective equipment, such as chemical - resistant gloves, safety goggles, and a lab coat, should be worn.
In a laboratory or industrial setting, when using it as a chemical intermediate, accurate weighing and dosing are required. It should be added slowly to the reaction system under appropriate reaction conditions, such as temperature and pressure control. After the reaction, the reaction mixture needs to be properly separated and purified according to the specific reaction requirements.
Pharmaceutical R & D Case: A pharmaceutical company was researching a new anti - cancer drug. They used 3,4 - Difluorobenzonitrile as a key intermediate. By a series of chemical reactions, they successfully synthesized a new compound with strong anti - cancer activity. In in - vitro cell experiments, this new compound showed significant inhibitory effects on cancer cell growth. Further in - vivo animal experiments also demonstrated its effectiveness in reducing tumor size with relatively low toxicity. This case shows that 3,4 - Difluorobenzonitrile can play an important role in the development of new drugs.
Agrochemical Production Case: An agrochemical manufacturer used 3,4 - Difluorobenzonitrile to produce a new type of fungicide. In field trials, the fungicide showed excellent performance in preventing and controlling various fungal diseases in wheat. It effectively reduced the incidence of fungal diseases, increased the wheat yield by about 15% compared with the control group, and improved the quality of wheat. This proves that 3,4 - Difluorobenzonitrile can contribute to the development of high - efficiency agrochemicals.
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