Diethyl Chlorophosphate (CAS 814-49-3) is a versatile organophosphorus compound with a distinct set of physical and chemical properties that make it invaluable across various industrial sectors. For procurement managers and research scientists, a thorough understanding of these characteristics is key to leveraging its full potential and making informed purchasing decisions. This article explores the key attributes and applications of this important chemical intermediate.

Physically, Diethyl Chlorophosphate is typically described as a colorless to light yellow liquid. Its density is approximately 1.19-1.2 g/cm³, and it possesses a boiling point that varies depending on pressure, often cited around 217.2 °C at 760 mmHg or 60 °C at 2 mmHg. The refractive index is around 1.415-1.418. These properties are critical for formulators and chemists who need to handle and process the compound effectively. Its flash point (around 61.1 °C) also provides important safety information for storage and handling protocols.

Chemically, Diethyl Chlorophosphate is recognized for its reactivity, particularly its ability to introduce a phosphoryl group into other molecules. This makes it a crucial intermediate in the synthesis of a wide range of organophosphorus compounds. Its main applications include:

  • Agrochemicals: It serves as a precursor in the manufacturing of various pesticides, including insecticides and herbicides, which are essential for modern agricultural practices.
  • Pharmaceuticals: Diethyl Chlorophosphate is used in the synthesis of certain pharmaceuticals, particularly those requiring phosphonate structures for biological activity.
  • Chemical Synthesis: It acts as a general reagent in organic synthesis, enabling chemists to create complex molecules for materials science and fine chemical production.
  • Flame Retardants and Plasticizers: The compound contributes to the production of materials with improved properties, such as enhanced fire resistance and flexibility.

When sourcing this chemical, it is essential to partner with reliable manufacturers and suppliers who can provide high-purity material (typically assayed at ≥98.0%). Understanding the CAS number (814-49-3) is vital for accurate identification and procurement. For industry professionals looking to buy Diethyl Chlorophosphate, focusing on suppliers who offer competitive pricing and comprehensive technical documentation, like Safety Data Sheets (SDS) and Certificates of Analysis (CoA), is highly recommended.

In conclusion, Diethyl Chlorophosphate is a foundational chemical intermediate whose properties and applications are critical to advancements in agriculture, medicine, and materials science. By understanding its characteristics and sourcing it from reputable manufacturers, businesses can effectively utilize this compound to drive innovation and production.