Product Name

  • Name

    Thiophosphoric acid O,O-diethyl S-benzyl ester

  • EINECS
  • CAS No. 13286-32-3
  • Article Data28
  • CAS DataBase
  • Density 1.1589 g/cm3 (20 ºC)
  • Solubility 0.4g/L(22 oC)
  • Melting Point
  • Formula C11H17O3PS
  • Boiling Point 334.1°C at 760 mmHg
  • Molecular Weight 260.294
  • Flash Point 155.9°C
  • Transport Information
  • Appearance
  • Safety Poison by ingestion and intraperitoneal routes. Moderately toxic by intravenous route. When heated to decomposition it emits very toxic fumes of POx and SOx.
  • Risk Codes
  • Molecular Structure Molecular Structure of 13286-32-3 (Thiophosphoric acid O,O-diethyl S-benzyl ester)
  • Hazard Symbols
  • Synonyms Kitazine,O,O-diethyl-s-benzylthiophosphate;O,O-diethyl S-(phenylmethyl) phosphorothioate;S-benzyl O,O-diethyl phosphorothioate;Kitazine;
  • PSA 70.64000
  • LogP 4.10090

O,O-Diethyl-S-benzyl thiophosphate Chemical Properties

IUPAC Name: Diethoxyphosphorylsulfanylmethylbenzene
Synonyms of O,O-Diethyl-S-benzyl thiophosphate (CAS NO.13286-32-3) : Phosphorothioic acid, O,O-diethyl S- (phenylmethyl) ester ; Phosphorothioic acid, O,O-diethyl S-(phenylmethyl) ester ; Phosphorothioic acid, O,O-diethyl S-(phenylmethyl) ester (9CI) ; S-Benzyl O,O-diethyl phosphorothioate ; S-Benzyl-O,O-diethylthiophosphat
InChI: InChI=1/C11H17O3PS/c1-3-13-15(12,14-4-2)16-10-11-8-6-5-7-9-11/h5-9H,3-4,10H2,1-2H3
CAS NO:13286-32-3 
Molecular Formula:C11H17O3PS                          
Molecular Weight :260.2896                                            
Molecular Structure :
Index of Refraction: 1.523     
Surface Tension: 41.5 dyne/cm 
Density: 1.169 g/cm3 
Flash Point: 155.9 °C 
Enthalpy of Vaporization: 55.42 kJ/mol 
Boiling Point: 334.1 °C at 760 mmHg 
Vapour Pressure: 0.000253 mmHg at 25°C 

O,O-Diethyl-S-benzyl thiophosphate Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LC inhalation > 400ppm (400ppm)   Zhonghua Yufangyixue Zazhi. Chinese Journal of Preventive Medicine. Vol. 14, Pg. 197, 1980.
mouse LD50 intraperitoneal 96mg/kg (96mg/kg)   Zhonghua Yufangyixue Zazhi. Chinese Journal of Preventive Medicine. Vol. 14, Pg. 197, 1980.
mouse LD50 intravenous 570mg/kg (570mg/kg)   Zhonghua Yufangyixue Zazhi. Chinese Journal of Preventive Medicine. Vol. 14, Pg. 197, 1980.
mouse LD50 oral 230mg/kg (230mg/kg)   Zhonghua Yufangyixue Zazhi. Chinese Journal of Preventive Medicine. Vol. 14, Pg. 197, 1980.
mouse LD50 unreported 202mg/kg (202mg/kg)   Tsitologiya i Genetika. Cytology and Genetics. For English translation, see CYGEDX. Vol. 16(1), Pg. 45, 1982.
rabbit LDLo skin 576mg/kg (576mg/kg)   Zhonghua Yufangyixue Zazhi. Chinese Journal of Preventive Medicine. Vol. 14, Pg. 197, 1980.
rat LC inhalation > 400ppm (400ppm)   Zhonghua Yufangyixue Zazhi. Chinese Journal of Preventive Medicine. Vol. 14, Pg. 197, 1980.
rat LD50 oral 660mg/kg (660mg/kg)   "Agricultural Chemicals," Thomson, W.T., 4 vols., Fresno, CA, Thomson Publications, 1976/77 revisionVol. 4, Pg. 102, 1976/1977.
rat LD50 unreported 238mg/kg (238mg/kg)   "Chemistry of Pesticides," Melnikov, N.N., New York, Springer-Verlag New York, Inc., 1971Vol. -, Pg. 352, 1971.
rat LDLo skin 576mg/kg (576mg/kg)   Zhonghua Yufangyixue Zazhi. Chinese Journal of Preventive Medicine. Vol. 14, Pg. 197, 1980.

O,O-Diethyl-S-benzyl thiophosphate Safety Profile

 O,O-Diethyl-S-benzyl thiophosphate (CAS NO.13286-32-3) is poisonous by ingestion and intraperitoneal routes. Moderately toxic by intravenous route. When O,O-Diethyl-S-benzyl thiophosphate (CAS NO.13286-32-3) is heated to decomposition ,it emits very toxic fumes of POx and SOx.

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