13289-13-9

Basic information

• Product Name: O-Methyl-O-ethylchlorothiophosphate
• Synonyms: O-Methyl-O-ethylchlorothiophosphate;chloro-ethoxy-methoxy-sulfanylidene-phosphorane
• CAS NO: 13289-13-9
• Molecular Formula: C₃H₈ClO₂PS
• Molecular Weight: 174.59
• Mol File: 13289-13-9.mol
• Article Data: 4

Chemical Properties

• Boiling Point: 180.5°C at 760 mmHg
• Flash Point: 63°C
• Appearance: /
• Density: 1.301g/cm³
• Vapor Pressure: 1.21mmHg at 25°C
• Refractive Index: 1.484
• CAS DataBase Reference: O-Methyl-O-ethylchlorothiophosphate(CAS DataBase Reference)
• NIST Chemistry Reference: O-Methyl-O-ethylchlorothiophosphate(13289-13-9)
• EPA Substance Registry System: O-Methyl-O-ethylchlorothiophosphate(13289-13-9)

Safety Data

• Hazardous Substances Data: 13289-13-9(Hazardous Substances Data)

Usage

InChI:InChI=1/C3H8ClO2PS/c1-3-6-7(4,8)5-2/h3H2,1-2H3

Upstream product

• 67-56-1 methanol 
• 1498-64-2 O-ethyl dichlorothiophosphate 
• 124-41-4 sodium methylate 
• 2523-94-6 methyl phosphorodichloridothionate 
• 2414-98-4 magnesium ethylate 

Downstream Products

• 33579-73-6 C₉H₁₅N₂O₄PS₂ 
• 33529-22-5 C₁₀H₁₇N₂O₄PS₂ 
• 1186380-42-6 O-methyl-O-ethyl-O-(1-phenyl-1H-[1,2,4]triazol-3-yl)-phosphorothioate 
• 5598-13-0 O,O-dimethyl O-3,5,6-trichloro-2-pyridyl phosphorothioate 

Relevant articles and documents

Preparation methods of methyl ethyl thiophosphoryl chloride and methyl ethyl chlorpyrifos

The invention provides a preparation method of methyl ethyl thiophosphoryl chloride and relates to the field of chemical synthesis. Thiophosphoryl chloride is adopted as an initial raw material and reacts with ethyl alcohol to obtain an intermediate A; the intermediate A reacts with sodium methoxide to obtain the methyl ethyl thiophosphoryl chloride. The preparation method is simple to operate, raw materials are easy to obtain, reaction conditions are mild, and the methyl ethyl thiophosphoryl chloride can be obtained with high efficiency and high yield only through the simple two-step reaction. The invention further provides a preparation method of methyl ethyl chlorpyrifos; the methyl ethyl thiophosphoryl chloride is prepared by adopting the preparation method of the methyl ethyl thiophosphoryl chloride and then reacts with sodium trichloro pyridinol to obtain the methyl ethyl chlorpyrifos. The preparation method is simple and convenient to operate and low in requirements for equipment and can realize the scale production of the methyl ethyl chlorpyrifos.

Preparation and activity study of a new organophosphate insecticidals

A new organophosphorus pesticide, compound 2 was prepared. The laboratory evaluations against Plutella xylostella L larva was performed. This compound showed the similar toxicity with corresponding pesticides but with higher insecticidal activity.