(6α,11β,16β)-6,9-Difluoro-21-hydroxy-16-methyl-3,20-dioxopregna-1,4-diene-11,17-diyl diacetate

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) =  2.93

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  514.70  (Adapted Stein & Brown method)
    Melting Pt (deg C):  219.46  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  5.55E-013  (Modified Grain method)
    Subcooled liquid VP: 6.63E-011 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):  7.926
       log Kow used: 2.93 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  0.096692 mg/L

 ECOSAR Class Program (ECOSAR v0.99h):
    Class(es) found:
       Esters
       Vinyl/Allyl Ketones

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   1.00E-012  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  4.556E-014 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  2.93  (KowWin est)
  Log Kaw used:  -10.388  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  13.318
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.2971
   Biowin2 (Non-Linear Model)     :   0.0734
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   1.6533  (recalcitrant)
   Biowin4 (Primary Survey Model) :   3.0634  (weeks       )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.8216
   Biowin6 (MITI Non-Linear Model):   0.0001
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -1.5634
 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):  8.84E-009 Pa (6.63E-011 mm Hg)
  Log Koa (Koawin est  ): 13.318
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  339 
       Octanol/air (Koa) model:  5.11 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  1 
       Mackay model           :  1 
       Octanol/air (Koa) model:  0.998 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  55.3756 E-12 cm3/molecule-sec
      Half-Life =     0.193 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     2.318 Hrs
   Ozone Reaction:
      OVERALL Ozone Rate Constant =     1.312500 E-17 cm3/molecule-sec
      Half-Life =     0.873 Days (at 7E11 mol/cm3)
      Half-Life =     20.955 Hrs
   Fraction sorbed to airborne particulates (phi): 1 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  394.7
      Log Koc:  2.596 

 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
  Total Kb for pH > 8 at 25 deg C :  1.256E-001  L/mol-sec
  Kb Half-Life at pH 8:      63.862  days   
  Kb Half-Life at pH 7:       1.748  years  

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
   Log BCF from regression-based method = 1.555 (BCF = 35.89)
       log Kow used: 2.93 (estimated)

 Volatilization from Water:
    Henry LC:  1E-012 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 1.302E+009  hours   (5.425E+007 days)
    Half-Life from Model Lake :  1.42E+010  hours   (5.918E+008 days)

 Removal In Wastewater Treatment:
    Total removal:               5.14  percent
    Total biodegradation:        0.12  percent
    Total sludge adsorption:     5.02  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       0.0203          3.8          1000       
   Water     8.65            4.32e+003    1000       
   Soil      91.1            8.64e+003    1000       
   Sediment  0.204           3.89e+004    0          
     Persistence Time: 4.7e+003 hr