5-{2-[2-(Cyclohexyloxy)-2-oxoethyl]-3-oxo-1-piperazinyl}-5-oxopentanoic acid

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) =  0.34

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  565.79  (Adapted Stein & Brown method)
    Melting Pt (deg C):  243.33  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  2.46E-012  (Modified Grain method)
    Subcooled liquid VP: 5.7E-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):  146.8
       log Kow used: 0.34 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  4.4572e+005 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   1.89E-017  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  7.815E-015 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  0.34  (KowWin est)
  Log Kaw used:  -15.112  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  15.452
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   1.2460
   Biowin2 (Non-Linear Model)     :   0.9997
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.8124  (weeks       )
   Biowin4 (Primary Survey Model) :   4.3618  (hours-days  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.7966
   Biowin6 (MITI Non-Linear Model):   0.6817
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -0.5983
 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):  7.6E-008 Pa (5.7E-010 mm Hg)
  Log Koa (Koawin est  ): 15.452
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  39.5 
       Octanol/air (Koa) model:  695 
   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 =  56.8720 E-12 cm3/molecule-sec
      Half-Life =     0.188 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     2.257 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    :  85.61
      Log Koc:  1.933 

 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
  Total Kb for pH > 8 at 25 deg C :  4.202E-003  L/mol-sec
  Kb Half-Life at pH 8:       5.226  years  
  Kb Half-Life at pH 7:      52.263  years  

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
   Log BCF from regression-based method = 0.500 (BCF = 3.162)
       log Kow used: 0.34 (estimated)

 Volatilization from Water:
    Henry LC:  1.89E-017 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 5.832E+013  hours   (2.43E+012 days)
    Half-Life from Model Lake : 6.362E+014  hours   (2.651E+013 days)

 Removal In Wastewater Treatment:
    Total removal:               1.86  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.76  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       1.12e-006       4.51         1000       
   Water     37.9            360          1000       
   Soil      62.1            720          1000       
   Sediment  0.0707          3.24e+003    0          
     Persistence Time: 586 hr