Physical Properties:

Diethyl chlorophosphate (𝐶4𝐻10𝐶𝑙𝑂3𝑃, CAS 814-49-3) is a colorless to faintly yellow, combustible liquid with a fruity odor, used primarily as an organic synthesis reagent. It has a density of 1.19g/mL (25∘C), a boiling point of 60-65^∘C at 2-10mmHg, and is highly toxic and corrosive.

Key Physical Properties:

Appearance: Colorless to light yellow clear liquid.

Density: 1.19–1.20g/cm3 at 20/25∘C

Boiling Point: 60–65∘C at 2–10mmHg

Refractive Index: 𝑛20/𝐷 1.416–1.418.

Vapor Density: 5.94 (vs. air).

Vapor Pressure: 0.1 mmHg at 25∘C

Flash Point: 61∘C (142∘F).Solubility: Soluble in alcohol.

Safety and Handling:

• Toxicity: Highly toxic, with an oral 𝐿𝐷₅₀ of 11mg/kg (rat).
• Hazards: Corrosive, causes severe burns, and is a cholinesterase inhibitor.
• Stability: Combustible; sensitive to moisture.
• Reactivity: Incompatible with strong oxidizing agents and bases

Diethyl chlorophosphate (CAS 814-49-3) is an organophosphorus compound primarily used as an intermediate in organic synthesis and for producing pesticide derivatives. Key synonyms include diethyl phosphorochloridate, diethyl phosphoryl chloride, and phosphorochloridic acid diethyl ester. It is a moisture-sensitive, colorless to light yellow liquid.

Common Synonyms for Diethyl Chlorophosphate (CAS 814-49-3):

• Primary Synonyms: Diethyl phosphorochloridate, Diethyl phosphoryl chloride
• Phosphoric Acid Derivatives: Phosphorochloridic acid diethyl ester, Diethyl phosphoric chloride, Chlorophosphoric acid diethyl ester
• Diethoxy Derivatives: Diethoxyphosphoryl chloride, Diethoxyphosphorus oxychloride, Diethoxy chlorophosphate
• Other Names: Chlorodiethylphosphate, Diethyl chlorophosphonate, O,O-Diethyl chlorophosphate, 𝑁𝑠𝑐43770
• Foreign/Systematic Names: Fosforoclorhidato De Dietilo, Phosphorochloridate de diethyle 

Chemical Properties:

• Formula: 𝐶4𝐻10𝐶𝑙𝑂3𝑃
• Molecular Weight: 172.55𝑔/𝑚𝑜𝑙
• Appearance: Clear, water-white to light yellow liquid
• Hazard: Causes severe skin burns and eye damage, fatal if swallowed or in contact with skin

Applications:

Diethyl chlorophosphate is widely utilized in research focused on: Pesticide Production: It serves as an intermediate in the synthesis of various pesticides, enhancing agricultural productivity by effectively controlling pests.