ChemSpider 2D Image | Demeton | C8H19O3PS2

Demeton

  • Molecular FormulaC8H19O3PS2
  • Average mass258.338 Da
  • Monoisotopic mass258.051331 Da
  • ChemSpider ID23115

More details:

Validated by Experts, Validated by Users, Non-Validated, Removed by Users

126-75-0 [RN]
204-801-8 [EINECS]
3UQ7N6O63K
Demeton [Wiki]
Demeton o,s
DEMETON S
Demeton thiol
Demeton-S
Diethyl [2-(ethylthio)ethyl] phosphorothionate
Diethyl 2-(ethylthio)ethyl phosphorothionate
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Validated by Experts, Validated by Users, Non-Validated, Removed by Users

34205_RIEDEL [DBID]
AI3-24045 [DBID]
BRN 1709115 [DBID]
BRN 1709166 [DBID]
HSDB 6201 [DBID]
NSC 8928 [DBID]
NSC8928 [DBID]
  • Experimental Physico-chemical Properties
  • Gas Chromatography

    • Retention Index (Kovats):

      1706 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.25 mm; Column length: 15 m; Column type: Capillary; Heat rate: 6 K/min; Start T: 100 C; End T: 270 C; CAS no: 126750; Active phase: DB-1; Carrier gas: He; Data type: Kovats RI; Authors: Hall, G.L.; Whitehead, W.E.; Mourer, C.R.; Shibamoto, T., A new gas chromatographic retention index for pesticides and related compounds, J. Hi. Res. Chromatogr. & Chromatogr. Comm., 9, 1986, 266-271.) NIST Spectra nist ri
      1738 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 15 m; Column type: Capillary; Heat rate: 6 K/min; Start T: 100 C; End T: 270 C; CAS no: 126750; Active phase: DB-5; Carrier gas: He; Data type: Kovats RI; Authors: Hall, G.L.; Whitehead, W.E.; Mourer, C.R.; Shibamoto, T., A new gas chromatographic retention index for pesticides and related compounds, J. Hi. Res. Chromatogr. & Chromatogr. Comm., 9, 1986, 266-271.) NIST Spectra nist ri

    • Retention Index (Normal Alkane):

      1705.8 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.2 mm; Column length: 12 m; Column type: Capillary; Heat rate: 18 K/min; Start T: 60 C; End T: 265 C; Start time: 1 min; CAS no: 126750; Active phase: HP-1; Carrier gas: He; Phase thickness: 0.33 um; Data type: Normal alkane RI; Authors: Liao, W.; Joe, T.; Cusick, W.G., Multiresidue screening method for fresh fruits and vegetables with gas chromatographic/mass spectrometric detection, J. Ass. Offic. Anal. Chem, 74(3), 1991, 554-565.) NIST Spectra nist ri
      1707.2 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column length: 1.1 m; Column type: Packed; Heat rate: 8.5 K/min; Start T: 50 C; End T: 300 C; CAS no: 126750; Active phase: OV-101; Carrier gas: N2; Substrate: Chromosorb W HP; Data type: Normal alkane RI; Authors: Saxton, W.L., Emergence temperature indices and relative retention times of pesticides and industrial chemicals determined by linear programmed temperature gas chromatography, J. Chromatogr., 393, 1987, 175-194.) NIST Spectra nist ri
      1699.7 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column length: 2.4 m; Column type: Packed; Heat rate: 10 K/min; Start T: 150 C; End T: 300 C; CAS no: 126750; Active phase: OV-101; Substrate: Gas Chrom Q; Data type: Normal alkane RI; Authors: Bowman, M.C.; Beroza, M., GLC Retention Times of Pesticides and Metabolites Containing Phosphorus and Sulfur on Four Thermally Stable Columns, J. Ass. Offic. Anal. Chem, 53(3), 1970, 499-508.) NIST Spectra nist ri
      1701.7 (Program type: Isothermal; Col... (show more) umn class: Standard non-polar; Column length: 0.9 m; Column type: Packed; CAS no: 126750; Active phase: OV-101; Carrier gas: N2; Substrate: Gas Chrom Q; Data type: Normal alkane RI; Authors: Bowman, M.C.; Beroza, M., Rapid GLC method for determining residues of fenthion, disulfoton, phorate in corn, milk, grass, and feces, J. Ass. Offic. Anal. Chem, 52(6), 1969, 1231-1237.) NIST Spectra nist ri
      1704.8 (Program type: Isothermal; Col... (show more) umn class: Standard non-polar; Column length: 3 ft; Column type: Packed; CAS no: 126750; Active phase: DC-200; Carrier gas: N2; Substrate: Gas Chrom Q; Data type: Normal alkane RI; Authors: Watts, R.R.; Storherr, R.W., Gas chromatography of organophosphorus pesticides: Retention times and response data on three columns, J. Ass. Offic. Anal. Chem, 52(3), 1969, 513-521.) NIST Spectra nist ri
      1705.9 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 70C(2min) =>25C/min =>150C=>3C/min => 200C=> 8C/min =>280C(10min); CAS no: 126750; Active phase: HP-5MS; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Wong, J.W.; Webster, M.G.; Bezabeh, D.Z.; Hengel, M.J.; Ngim, K.K.; Krynitsky, A.J.; Ebeler, S.E., Multiresidue determination of pesticides in malt beverages by capillary gas chromatography with mass spectrometry and selected ion monitoring, J. Agric. Food Chem., 52, 2004, 6361-6372.) NIST Spectra nist ri
      1704.4 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 6 K/min; Start T: 60 C; End T: 260 C; End time: 12 min; CAS no: 126750; Active phase: DB-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Mogadati, P.; Louis, J.B.; Rosen, J.D., Multiresidue determination of pesticides in high-organic-content soils by solid-phase extraction and gas chromatography/mass spectrometry, J. AOAC Int., 82(3), 1999, 705-715.) NIST Spectra nist ri
      1719.2 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.53 mm; Column length: 30 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 125 C; End T: 250 C; End time: 10 min; Start time: 10 min; CAS no: 126750; Active phase: RTX-5; Carrier gas: He; Phase thickness: 0.5 um; Data type: Normal alkane RI; Authors: Restek, Restek International, 1999 Product Guide, 1(1), 1999, 578-591, In original 578-591.) NIST Spectra nist ri
      1729.5 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 25 m; Column type: Capillary; Heat rate: 15 K/min; Start T: 80 C; End T: 280 C; CAS no: 126750; Active phase: DB-5; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Kwakman, P.J.M.; Vreuls, J.J.; Brinkman, U.A.Th.; Ghijsen, R.T., Determination of organophosphorus pesticides in aqueous samples by on-line membrane disk extraction and capillary gas chromatography, Chromatographia, 34(1/2), 1992, 41-47.) NIST Spectra nist ri
      1708.1 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 60 0C (0.5 min) ^ 30 0C/min -> 160 0C ^ 5 0C/min -> 290 0C (5 min) (total run time 34.8 min); CAS no: 126750; Active phase: DB-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Holstege, D.M.; Scharberg, D.L.; Richardson, E.R.; Moller, G., Multiresidue screen for organophosphorus insecticides using gel permeation chromatography -- silica gel cleanup, J. Ass. Offic. Anal. Chem, 74(2), 1991, 394-399.) NIST Spectra nist ri

Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module, version: 14.00

Density: 1.1±0.1 g/cm3
Boiling Point: 320.5±44.0 °C at 760 mmHg
Vapour Pressure: 0.0±0.7 mmHg at 25°C
Enthalpy of Vaporization: 54.0±3.0 kJ/mol
Flash Point: 147.6±28.4 °C
Index of Refraction: 1.493
Molar Refractivity: 65.5±0.3 cm3
#H bond acceptors: 3
#H bond donors: 0
#Freely Rotating Bonds: 9
#Rule of 5 Violations: 0
ACD/LogP: 2.38
ACD/LogD (pH 5.5): 2.20
ACD/BCF (pH 5.5): 27.46
ACD/KOC (pH 5.5): 372.77
ACD/LogD (pH 7.4): 2.20
ACD/BCF (pH 7.4): 27.46
ACD/KOC (pH 7.4): 372.77
Polar Surface Area: 96 Å2
Polarizability: 26.0±0.5 10-24cm3
Surface Tension: 39.0±3.0 dyne/cm
Molar Volume: 225.4±3.0 cm3

Predicted data is generated using the US Environmental Protection Agency�s EPISuite™ 

                        
 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  2.09

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  335.78  (Adapted Stein & Brown method)
    Melting Pt (deg C):  68.02  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.000113  (Modified Grain method)
    Subcooled liquid VP: 0.000286 mm Hg (25 deg C, Mod-Grain method)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  347.1
       log Kow used: 2.09 (estimated)
       no-melting pt equation used
     Water Sol (Exper. database match) =  2000 mg/L ( deg C)
        Exper. Ref:  YALKOWSKY,SH & DANNENFELSER,RM (1992)

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  2796.3 mg/L
    Wat Sol (Exper. database match) =  2000.00
       Exper. Ref:  YALKOWSKY,SH & DANNENFELSER,RM (1992)

 ECOSAR Class Program (ECOSAR v0.99h):
    Class(es) found:
       Esters
       Esters (phosphate)

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   4.53E-009  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  1.107E-007 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  2.09  (KowWin est)
  Log Kaw used:  -6.732  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  8.822
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.9385
   Biowin2 (Non-Linear Model)     :   1.0000
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.7820  (weeks       )
   Biowin4 (Primary Survey Model) :   3.9404  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.3466
   Biowin6 (MITI Non-Linear Model):   0.1686
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  1.2543
 Ready Biodegradability Prediction:   NO

Hydrocarbon Biodegradation (BioHCwin v1.01):
    Structure incompatible with current estimation method!

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
  Vapor pressure (liquid/subcooled):  0.0381 Pa (0.000286 mm Hg)
  Log Koa (Koawin est  ): 8.822
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  7.87E-005 
       Octanol/air (Koa) model:  0.000163 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.00283 
       Mackay model           :  0.00625 
       Octanol/air (Koa) model:  0.0129 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  80.2926 E-12 cm3/molecule-sec
      Half-Life =     0.133 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     1.599 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Reaction With Nitrate Radicals May Be Important!
   Fraction sorbed to airborne particulates (phi): 0.00454 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  300.9
      Log Koc:  2.478 

 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
    Rate constants can NOT be estimated for this structure!

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
   Log BCF from regression-based method = 0.911 (BCF = 8.153)
       log Kow used: 2.09 (estimated)

 Volatilization from Water:
    Henry LC:  4.53E-009 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 2.077E+005  hours   (8656 days)
    Half-Life from Model Lake : 2.266E+006  hours   (9.443E+004 days)

 Removal In Wastewater Treatment:
    Total removal:               2.34  percent
    Total biodegradation:        0.10  percent
    Total sludge adsorption:     2.24  percent
    Total to Air:                0.00  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       0.0688          3.2          1000       
   Water     23.6            360          1000       
   Soil      76.2            720          1000       
   Sediment  0.0922          3.24e+003    0          
     Persistence Time: 633 hr

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