Product Name

  • Name

    O-ethyl S-(2-dimethylaminoethyl) methylphosphonothioate

  • EINECS
  • CAS No. 20820-80-8
  • Density g/cm3
  • Solubility
  • Melting Point
  • Formula C7H18 N O2 P S
  • Boiling Point 259°Cat760mmHg
  • Molecular Weight 211.265
  • Flash Point 110.4°C
  • Transport Information
  • Appearance
  • Safety Poison by ingestion, intraperitoneal, intravenous, and intramuscular routes. When heated to decomposition it emits very toxic fumes of NOx, POx, and SOx.
  • Risk Codes
  • Molecular Structure Molecular Structure of 20820-80-8 (O-ethyl S-(2-dimethylaminoethyl) methylphosphonothioate)
  • Hazard Symbols
  • Synonyms Phosphonothioicacid, methyl-, S-[2-(dimethylamino)ethyl] O-ethyl ester (6CI,7CI,8CI,9CI);EA1699;EDMM;Medemo;O-Ethyl S-(2-dimethylaminoethyl) methylphosphonothioate;O-Ethyl S-(dimethylaminoethyl) methylphosphonothioate;
  • PSA 64.65000
  • LogP 2.14060

O-Ethyl-S-(2-dimethylaminoethyl)-methylphosphonothioate Chemical Properties

IUPAC Name: 2-[Ethoxy(methyl)phosphoryl]sulfanyl-N,N-dimethylethanamine
Synonyms of O-Ethyl-S-(2-dimethylaminoethyl)-methylphosphonothioate (CAS NO.20820-80-8) : Phosphonothioic acid, P-methyl-, S-[2-(dimethylamino)ethyl] O-ethyl ester ; S-[2-(Dimethylamino)ethyl] O-ethyl methylphosphonothioate ; Medemo ; Methylphosphonothioic acid, S-(2-(dimethylamino)ethyl) O-ethyl ester
InChI:InChI=1/C7H18NO2PS/c1-5-10-11(4,9)12-7-6-8(2)3/h5-7H2,1-4H3  
CAS NO:20820-80-8  
Molecular Formula:C7H18NO2PS                   
Molecular Weight :211.2621                            
Molecular Structure :
Index of Refraction: 1.471     
Surface Tension: 35.7 dyne/cm 
Density: 1.078 g/cm3 
Flash Point: 110.4 °C 
Enthalpy of Vaporization: 49.66 kJ/mol 
Boiling Point: 259 °C at 760 mmHg 
Vapour Pressure: 0.0133 mmHg at 25°C 

O-Ethyl-S-(2-dimethylaminoethyl)-methylphosphonothioate Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 intraperitoneal 50ug/kg (0.05mg/kg)   "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986Vol. -, Pg. 1125, 1986.
rat LD50 intramuscular 21ug/kg (0.021mg/kg)   Acta Biologica et Medica Germanica. Vol. 27, Pg. 171, 1971.
rat LD50 intraperitoneal 54ug/kg (0.054mg/kg)   Acta Biologica et Medica Germanica. Vol. 37, Pg. 633, 1978.
rat LD50 intravenous 17ug/kg (0.017mg/kg)   Acta Biologica et Medica Germanica. Vol. 37, Pg. 633, 1978.
rat LD50 oral 122ug/kg (0.122mg/kg)   Acta Biologica et Medica Germanica. Vol. 37, Pg. 633, 1978.

O-Ethyl-S-(2-dimethylaminoethyl)-methylphosphonothioate Safety Profile

 O-Ethyl-S-(2-dimethylaminoethyl)-methylphosphonothioate (CAS NO.20820-80-8) is poisonous by ingestion, intraperitoneal, intravenous, and intramuscular routes. When O-Ethyl-S-(2-dimethylaminoethyl)-methylphosphonothioate (CAS NO.20820-80-8) is heated to decomposition, it emits very toxic fumes of NOx, POx, and SOx.

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