(6β,17α)-17-Hydroxy-6-methylpregn-4-ene-3,20-dione

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) =  3.50

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  432.59  (Adapted Stein & Brown method)
    Melting Pt (deg C):  181.11  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  1.93E-010  (Modified Grain method)
    MP  (exp database):  214.5 deg C
    Subcooled liquid VP: 2.02E-008 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):  22.22
       log Kow used: 3.50 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  4.4718 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   1.34E-008  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  3.937E-012 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  3.50  (KowWin est)
  Log Kaw used:  -6.261  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  9.761
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.0454
   Biowin2 (Non-Linear Model)     :   0.0003
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   1.7566  (months      )
   Biowin4 (Primary Survey Model) :   2.8459  (weeks       )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.3213
   Biowin6 (MITI Non-Linear Model):   0.0352
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -2.0245
 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):  2.69E-006 Pa (2.02E-008 mm Hg)
  Log Koa (Koawin est  ): 9.761
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  1.11 
       Octanol/air (Koa) model:  0.00142 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.976 
       Mackay model           :  0.989 
       Octanol/air (Koa) model:  0.102 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 104.2236 E-12 cm3/molecule-sec
      Half-Life =     0.103 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     1.232 Hrs
   Ozone Reaction:
      OVERALL Ozone Rate Constant =     1.137500 E-17 cm3/molecule-sec
      Half-Life =     1.007 Days (at 7E11 mol/cm3)
      Half-Life =     24.179 Hrs
   Fraction sorbed to airborne particulates (phi): 0.982 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  622.2
      Log Koc:  2.794 

 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 = 1.995 (BCF = 98.77)
       log Kow used: 3.50 (estimated)

 Volatilization from Water:
    Henry LC:  1.34E-008 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:  8.11E+004  hours   (3379 days)
    Half-Life from Model Lake : 8.849E+005  hours   (3.687E+004 days)

 Removal In Wastewater Treatment:
    Total removal:              13.03  percent
    Total biodegradation:        0.18  percent
    Total sludge adsorption:    12.85  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       0.0559          2.23         1000       
   Water     13.8            1.44e+003    1000       
   Soil      85              2.88e+003    1000       
   Sediment  1.18            1.3e+004     0          
     Persistence Time: 1.7e+003 hr