ChemSpider 2D Image | 5574828 | C16H18N2O3

5574828

  • Molecular FormulaC16H18N2O3
  • Average mass286.326 Da
  • Monoisotopic mass286.131744 Da
  • ChemSpider ID24757

More details:






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

14214-32-5 [RN]
238-068-0 [EINECS]
3-[4-(4-Methoxyphenoxy)phenyl]-1,1-dimethylharnstoff [ACD/IUPAC Name]
3-[4-(4-Methoxyphenoxy)phenyl]-1,1-dimethylharnstoff [German] [ACD/IUPAC Name]
3-[4-(4-Methoxyphenoxy)phenyl]-1,1-dimethylurea [ACD/IUPAC Name]
3-[4-(4-Méthoxyphénoxy)phényl]-1,1-diméthylurée [ACD/IUPAC Name]
3-[4-(4-Méthoxyphénoxy)phényl]-1,1-diméthylurée [French] [ACD/IUPAC Name]
5574828
difenoxuron
Difenoxurone
More...

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

C74279E50O [DBID]
45444_RIEDEL [DBID]
BRN 5574828 [DBID]
C 3470 [DBID]
Caswell No. 551C [DBID]
EPA Pesticide Chemical Code 551400 [DBID]
UNII:C74279E50O [DBID]
UNII-C74279E50O [DBID]
  • Experimental Physico-chemical Properties
  • Gas Chromatography
    • Retention Index (Kovats):

      2394 (estimated with error: 89) NIST Spectra mainlib_53849
    • Retention Index (Normal Alkane):

      1940.7 (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: 14214325; 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
      1959 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 80C(1min) => 10C/min =>160C (5min) => 3C/min =>240C =>25C/min =>280C(10min); CAS no: 14214325; Active phase: DB-5MS; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Chu, X.-G.; Hu, X.-Z.; Yao, H.-Y., Determination of 266 pesticide residues in apple juice by matrix solid-phase dispersion and gas chromatography-mass selective detection, J. Chromatogr. A, 1063, 2005, 201-210.) NIST Spectra nist ri
      1960.9 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.2 mm; Column length: 25 m; Column type: Capillary; Description: 100C(1min) => 30C/min=> 150C(2min) => 3C/min=> 205C => 10C/min =>260C(29min); CAS no: 14214325; Active phase: SE-54; Phase thickness: 0.33 um; Data type: Normal alkane RI; Authors: Stan, H.-J., Pesticide residue analysis in foodstuffs applying capillary gas chromatography with mass spectrometric detection State-of-the-art use of modified DFG-multimethod S19 and automated data evaluation, J. Chromatogr. A, 892, 2000, 347-377.) NIST Spectra nist ri

Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module

Density: 1.2±0.1 g/cm3
Boiling Point: 467.3±45.0 °C at 760 mmHg
Vapour Pressure: 0.0±1.2 mmHg at 25°C
Enthalpy of Vaporization: 72.9±3.0 kJ/mol
Flash Point: 236.4±28.7 °C
Index of Refraction: 1.596
Molar Refractivity: 82.0±0.3 cm3
#H bond acceptors: 5
#H bond donors: 1
#Freely Rotating Bonds: 4
#Rule of 5 Violations: 0
ACD/LogP: 2.02
ACD/LogD (pH 5.5): 2.43
ACD/BCF (pH 5.5): 41.47
ACD/KOC (pH 5.5): 500.67
ACD/LogD (pH 7.4): 2.43
ACD/BCF (pH 7.4): 41.47
ACD/KOC (pH 7.4): 500.67
Polar Surface Area: 51 Å2
Polarizability: 32.5±0.5 10-24cm3
Surface Tension: 45.1±3.0 dyne/cm
Molar Volume: 240.9±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) =  3.52
    Log Kow (Exper. database match) =  2.54
       Exper. Ref:  Liu,J and Qian,C (1995)

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  436.33  (Adapted Stein & Brown method)
    Melting Pt (deg C):  176.21  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  2.89E-008  (Modified Grain method)
    Subcooled liquid VP: 1.07E-006 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):  99.82
       log Kow used: 2.54 (expkow database)
       no-melting pt equation used
     Water Sol (Exper. database match) =  20 mg/L (20 deg C)
        Exper. Ref:  YALKOWSKY,SH & DANNENFELSER,RM (1992)

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  11.187 mg/L
    Wat Sol (Exper. database match) =  20.00
       Exper. Ref:  YALKOWSKY,SH & DANNENFELSER,RM (1992)

 ECOSAR Class Program (ECOSAR v0.99h):
    Class(es) found:
       Neutral Organics
       Ureas(substituted)

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   1.26E-012  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  1.091E-010 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  2.54  (exp database)
  Log Kaw used:  -10.288  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  12.828
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.8750
   Biowin2 (Non-Linear Model)     :   0.9689
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.4502  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.5889  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.3177
   Biowin6 (MITI Non-Linear Model):   0.1115
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.1900
 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):  0.000143 Pa (1.07E-006 mm Hg)
  Log Koa (Koawin est  ): 12.828
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.021 
       Octanol/air (Koa) model:  1.65 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.432 
       Mackay model           :  0.627 
       Octanol/air (Koa) model:  0.992 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  67.1068 E-12 cm3/molecule-sec
      Half-Life =     0.159 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     1.913 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 0.529 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  561.3
      Log Koc:  2.749 

 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 = 1.256 (BCF = 18.02)
       log Kow used: 2.54 (expkow database)

 Volatilization from Water:
    Henry LC:  1.26E-012 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 7.863E+008  hours   (3.276E+007 days)
    Half-Life from Model Lake : 8.578E+009  hours   (3.574E+008 days)

 Removal In Wastewater Treatment:
    Total removal:               3.21  percent
    Total biodegradation:        0.10  percent
    Total sludge adsorption:     3.11  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       2.06e-005       3.83         1000       
   Water     15.7            900          1000       
   Soil      84.2            1.8e+003     1000       
   Sediment  0.138           8.1e+003     0          
     Persistence Time: 1.66e+003 hr




                    

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