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Chlorpyrifos

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Identification
Molecular formula
C9H11Cl3NO3PS
CAS number
2921-88-2
IUPAC name
[2-chloro-1-(2,4-dichlorophenyl)vinyl] diethyl phosphate
State
State

At room temperature, chlorpyrifos is typically a solid. It remains solid under normal conditions and requires storage in tightly closed containers to maintain its stability.

Melting point (Celsius)
42.00
Melting point (Kelvin)
315.15
Boiling point (Celsius)
400.00
Boiling point (Kelvin)
673.15
General information
Molecular weight
350.59g/mol
Molar mass
350.5900g/mol
Density
1.3980g/cm3
Appearence

Chlorpyrifos is a white crystalline solid at room temperature. It may also appear as a slight pale yellow tint. It has a strong, sulfurous odor, characteristic of thiophosphate pesticides.

Comment on solubility

Solubility of [2-chloro-1-(2,4-dichlorophenyl)vinyl] diethyl phosphate

The solubility of [2-chloro-1-(2,4-dichlorophenyl)vinyl] diethyl phosphate can be characterized by several key factors:

  • Polar vs. Nonpolar: This compound has a complex structure with both polar and nonpolar characteristics due to the presence of chlorinated aromatic groups and the phosphate moiety. This duality affects its interaction with solvents.
  • Solvents: Typically, compounds like this tend to be soluble in organic solvents such as ethanol, acetone, and chloroform, while exhibiting poor solubility in water due to their hydrophobic nature.
  • Temperature Dependency: Solubility may increase with temperature, particularly in organic solvents, which helps to dissolve larger amounts of the compound.
  • Environmental Impact: Understanding the solubility is crucial for assessing the compound's behavior in the environment as it can influence transport and bioavailability.

In summary, the solubility of [2-chloro-1-(2,4-dichlorophenyl)vinyl] diethyl phosphate is likely to be higher in organic solvents than in water due to its structural properties. This highlights the importance of solvent choice in experiments and applications involving this compound.

Interesting facts

Interesting Facts about [2-chloro-1-(2,4-dichlorophenyl)vinyl] diethyl phosphate

[2-chloro-1-(2,4-dichlorophenyl)vinyl] diethyl phosphate is a fascinating compound, particularly due to its applications and chemical characteristics. This compound belongs to the class of organophosphates, which are well known for their use in various fields, particularly in agriculture and pest control.

Key Features and Applications

  • Pesticide Properties: The compound exhibits potent insecticidal and herbicidal properties, making it valuable in agricultural practices.
  • Mechanism of Action: Like many organophosphates, it functions by inhibiting the enzyme acetylcholinesterase, which is crucial for the functioning of the nervous system in insects.
  • Environmental Impact: Due to its chlorinated structure, it is important to consider its environmental persistence and potential toxicity to non-target organisms.
  • Synthetic Utility: The diethyl phosphate moiety also serves as a versatile building block in synthetic organic chemistry, allowing chemists to craft a variety of compounds.

Chemical Structure Insights

The compound features a unique vinyl group that is substituted with a chloro and a dichlorophenyl group. This structure not only contributes to its reactivity but also enhances its lipophilicity, thereby affecting its biological activity. As a result, researchers often study such compounds to develop safer and more effective alternatives to conventional pesticides.

Safety and Regulatory Aspects

Due to the potential risks associated with organophosphate compounds, regulatory agencies closely monitor their usage. Safety data sheets and proper handling procedures are essential when working with this compound in laboratory or field settings.


In summary, [2-chloro-1-(2,4-dichlorophenyl)vinyl] diethyl phosphate is not just another chemical; it is a bridge between chemistry, environmental science, and agricultural practices. Its intriguing chemical properties and significant applications make it a subject of ongoing research and discussion in the scientific community.

Synonyms
[2-chloro-1-(2,4-dichlorophenyl)ethenyl] diethyl phosphate
CHEBI:38598
CHEMBL2354650
AKOS030254678
FC19928
Chlorfenvinphos 10 microg/mL in Cyclohexane
Chlorfenvinphos 1000 microg/mL in Toluene
DB-051426
Chlorfenvinphos 10 microg/mL in Acetonitrile
Chlorfenvinphos 100 microg/mL in Acetonitrile
Chlorfenvinphos 100 microg/mL in Cyclohexane
Phosphoric acid 2-chloro-1-(2,4-dichlorophenyl)ethenyl diethyl ester;2,4-Dichloro-a-(chloromethylene)benzyl alcohol diethyl phosphat e;Birlan