7173-84-4

Basic information

• Product Name: CARBOPHENOTHION METHYL-O-ANALOG
• Synonyms: Carbophenothion O-analog;Carbophenothion oxygen analog;Danifos;O,O-Diethyl S-(4-chlorophenylthiomethyl) thiophosphate;O,O-Diethyl-S-p-chlorophenyl thiomethylphosphorothioate;Phosphorothioic acid, S-[[(4-chlorophenyl)thio]methyl] O,O-diethyl ester;Phosphorothioic acid, S-[[(p-chlorophenyl)thio]methyl] O,O-diethyl ester;Ptmd
• CAS NO: 7173-84-4
• Molecular Formula: C₁₁H₁₆ClO₃PS₂
• Molecular Weight: 326.8
• Mol File: 7173-84-4.mol
• Article Data: 2

Chemical Properties

• Boiling Point: 389.7°C at 760 mmHg
• Flash Point: 189.5°C
• Appearance: /
• Density: 1.3g/cm³
• Vapor Pressure: 6.29E-06mmHg at 25°C
• Refractive Index: 1.562
• CAS DataBase Reference: CARBOPHENOTHION METHYL-O-ANALOG(CAS DataBase Reference)
• NIST Chemistry Reference: CARBOPHENOTHION METHYL-O-ANALOG(7173-84-4)
• EPA Substance Registry System: CARBOPHENOTHION METHYL-O-ANALOG(7173-84-4)

Safety Data

• RIDADR: 3018
• HazardClass: 6.1(a)
• PackingGroup: II
• Hazardous Substances Data: 7173-84-4(Hazardous Substances Data)

Usage

General Description

CARBOPHENOTHION METHYL-O-ANALOG is a chemical compound that belongs to the organophosphate class of insecticides. It is used to control a variety of insect pests on crops such as cotton, corn, and soybeans. This chemical works by inhibiting the activity of acetylcholinesterase, an enzyme that is essential for proper nerve function in insects. As a result, the insects are paralyzed and eventually die. However, carbophenothion methyl-O-analog is highly toxic to non-target organisms including humans and wildlife, and its use is heavily regulated in many countries due to concerns about its potential impact on human health and the environment.

InChI:InChI=1/C11H16ClO3PS2/c1-3-14-16(13,15-4-2)18-9-17-11-7-5-10(12)6-8-11/h5-8H,3-4,9H2,1-2H3

Upstream product

• 933-01-7 4-chloro-benzenesulfenyl chloride 
• 7205-90-5 chloromethyl 4-chlorophenyl sulfide 
• 5852-63-1 sodium diethylthiophosphate 
• 186581-53-3 diazomethane 
• 65212-38-6 4-chlorophenyl diethoxyphosphinyl disulfide 
• 106-54-7 p-Chlorothiophenol 

Relevant articles and documents

Reaction of Phosphinyl and Phosphinothioyl Disulfides with Diazomethane

Four kinds of 4-substituted phenyl diethoxyphosphinyl disulfide (substituents: H, CH3, C2H5, Cl) and phenyl diethoxyphosphinothioyl disulfide reacted readily with diazomethane.The phosphinyl disulfides produced diethyl (4-substituted phenylthio)methyl phosphorothionate and the isomer, diethyl S-(4-substituted phenylthio)methyl phosphorothiolate, as the main products, whereas the phosphinothioyl disulfide produced only diethyl S-(phenylthio)methyl phosphorodithioate.The possible mechanism involved is as follows: the S-S bond in (EtO)2P(X)-S-S-C6H4R (X=O or S) is cleaved by nucleophilic attack of diazomethane at the sulfur atom bonded to the phenyl group to produce and (+)N2CH2-S-C6H4R; the latter reacts with the former with loss of nitrogen; therefore, when X is O, two compounds, (EtO)2P(S)-O-CH2-S-C6H4R and (EtO)2P(O)-S-CH2-S-C6H4R, are produced, when X is S, only (EtO)2P(S)-S-CH2-S-C6H4R is obtained.