Urocanylcholine

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

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

                        
 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  -3.40

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  546.08  (Adapted Stein & Brown method)
    Melting Pt (deg C):  234.12  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  1.03E-011  (Modified Grain method)
    Subcooled liquid VP: 1.84E-009 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):  1e+006
       log Kow used: -3.40 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  1778.4 mg/L

 ECOSAR Class Program (ECOSAR v0.99h):
    Class(es) found:
       Acrylates
       Imidazoles

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   2.17E-019  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  3.040E-018 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  -3.40  (KowWin est)
  Log Kaw used:  -17.052  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  13.652
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.8149
   Biowin2 (Non-Linear Model)     :   0.9802
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.8437  (weeks       )
   Biowin4 (Primary Survey Model) :   3.7531  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.5082
   Biowin6 (MITI Non-Linear Model):   0.4917
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.0456
 Ready Biodegradability Prediction:   YES

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

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
  Vapor pressure (liquid/subcooled):  2.45E-007 Pa (1.84E-009 mm Hg)
  Log Koa (Koawin est  ): 13.652
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  12.2 
       Octanol/air (Koa) model:  11 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.998 
       Mackay model           :  0.999 
       Octanol/air (Koa) model:  0.999 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  69.9022 E-12 cm3/molecule-sec [Cis-isomer]
      OVERALL OH Rate Constant =  72.5622 E-12 cm3/molecule-sec [Trans-isomer]
      Half-Life =    1.836 Hrs (12-hr day; 1.5E6 OH/cm3) [Cis-isomer]
      Half-Life =    1.769 Hrs (12-hr day; 1.5E6 OH/cm3) [Trans-isomer]
   Ozone Reaction:
      OVERALL Ozone Rate Constant =     1.050000 E-17 cm3/molecule-sec [Cis-]
      OVERALL Ozone Rate Constant =     2.100000 E-17 cm3/molecule-sec [Trans-]
      Half-Life =     1.091 Days (at 7E11 mol/cm3) [Cis-isomer]
      Half-Life =    13.097 Hrs (at 7E11 mol/cm3) [Trans-isomer]
   Fraction sorbed to airborne particulates (phi): 0.998 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  66.96
      Log Koc:  1.826 

 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
  Total Kb for pH > 8 at 25 deg C :  1.133E-002  L/mol-sec
  Kb Half-Life at pH 8:       1.939  years  
  Kb Half-Life at pH 7:      19.386  years  

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
   Log BCF from regression-based method = 0.500 (BCF = 3.162)
       log Kow used: -3.40 (estimated)

 Volatilization from Water:
    Henry LC:  2.17E-019 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 4.041E+015  hours   (1.684E+014 days)
    Half-Life from Model Lake : 4.408E+016  hours   (1.837E+015 days)

 Removal In Wastewater Treatment:
    Total removal:               1.85  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.75  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       3.82e-009       3.22         1000       
   Water     39              360          1000       
   Soil      60.9            720          1000       
   Sediment  0.0713          3.24e+003    0          
     Persistence Time: 579 hr