Urea, N-(4-methoxyphenyl)-N'-[5-[(4-methoxyphenyl)methyl]-1,3,4-thiadiazol-2-yl]-

Data supplied by datasources and users.

Predicted data is generated using the ACD/Labs’ ACD/PhysChem Suite, for more information see their website.

Predicted data is generated using the US Environmental Protection Agency’s EPISuite™, for more information see their website.

                    
 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  3.54

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  564.50  (Adapted Stein & Brown method)
    Melting Pt (deg C):  242.73  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  2.7E-012  (Modified Grain method)
    Subcooled liquid VP: 6.16E-010 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):  4.458
       log Kow used: 3.53 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  0.1092 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   1.00E-017  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  2.952E-013 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  3.54  (KowWin est)
  Log Kaw used:  -15.388  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  18.928
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.8897
   Biowin2 (Non-Linear Model)     :   0.9439
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.1895  (months      )
   Biowin4 (Primary Survey Model) :   3.3990  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.0114
   Biowin6 (MITI Non-Linear Model):   0.0095
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.1477
 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):  8.21E-008 Pa (6.16E-010 mm Hg)
  Log Koa (Koawin est  ): 18.928
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  36.5 
       Octanol/air (Koa) model:  2.08E+006 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.999 
       Mackay model           :  1 
       Octanol/air (Koa) model:  1 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  66.3914 E-12 cm3/molecule-sec
      Half-Life =     0.161 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     1.933 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 0.999 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  2527
      Log Koc:  3.403 

 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 = 2.022 (BCF = 105.2)
       log Kow used: 3.53 (estimated)

 Volatilization from Water:
    Henry LC:  1E-017 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 1.127E+014  hours   (4.695E+012 days)
    Half-Life from Model Lake : 1.229E+015  hours   (5.122E+013 days)

 Removal In Wastewater Treatment:
    Total removal:              13.97  percent
    Total biodegradation:        0.19  percent
    Total sludge adsorption:    13.78  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       1.13e-007       3.87         1000       
   Water     9.13            1.44e+003    1000       
   Soil      90              2.88e+003    1000       
   Sediment  0.869           1.3e+004     0          
     Persistence Time: 2.84e+003 hr