3,20-Dioxopregna-1,4,9(11),16-tetraen-21-yl acetate

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) =  3.61

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  454.87  (Adapted Stein & Brown method)
    Melting Pt (deg C):  191.52  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  6.66E-009  (Modified Grain method)
    Subcooled liquid VP: 3.72E-007 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):  4.066
       log Kow used: 3.61 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  1.6749 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 :   2.95E-010  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  7.898E-010 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  3.61  (KowWin est)
  Log Kaw used:  -7.919  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  11.529
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.3931
   Biowin2 (Non-Linear Model)     :   0.0781
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.0603  (months      )
   Biowin4 (Primary Survey Model) :   3.1967  (weeks       )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.5218
   Biowin6 (MITI Non-Linear Model):   0.1388
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -1.4258
 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):  4.96E-005 Pa (3.72E-007 mm Hg)
  Log Koa (Koawin est  ): 11.529
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.0605 
       Octanol/air (Koa) model:  0.083 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.686 
       Mackay model           :  0.829 
       Octanol/air (Koa) model:  0.869 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 217.9939 E-12 cm3/molecule-sec
      Half-Life =     0.049 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     0.589 Hrs
   Ozone Reaction:
      OVERALL Ozone Rate Constant =     9.843749 E-17 cm3/molecule-sec
      Half-Life =     0.116 Days (at 7E11 mol/cm3)
      Half-Life =      2.794 Hrs
   Fraction sorbed to airborne particulates (phi): 0.757 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  3985
      Log Koc:  3.600 

 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
  Total Kb for pH > 8 at 25 deg C :  1.998E+000  L/mol-sec
  Kb Half-Life at pH 8:       4.016  days   
  Kb Half-Life at pH 7:      40.159  days   

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
   Log BCF from regression-based method = 2.080 (BCF = 120.2)
       log Kow used: 3.61 (estimated)

 Volatilization from Water:
    Henry LC:  2.95E-010 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 3.799E+006  hours   (1.583E+005 days)
    Half-Life from Model Lake : 4.145E+007  hours   (1.727E+006 days)

 Removal In Wastewater Treatment:
    Total removal:              15.79  percent
    Total biodegradation:        0.21  percent
    Total sludge adsorption:    15.58  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       0.00459         0.828        1000       
   Water     10              1.44e+003    1000       
   Soil      88.9            2.88e+003    1000       
   Sediment  1.14            1.3e+004     0          
     Persistence Time: 2.49e+003 hr