6a-methyl-4-pregnen-17a-ol-20-one

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) =  5.26

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  399.86  (Adapted Stein & Brown method)
    Melting Pt (deg C):  156.19  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  8.52E-009  (Modified Grain method)
    Subcooled liquid VP: 1.87E-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):  0.8443
       log Kow used: 5.26 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  1.5535 mg/L

 ECOSAR Class Program (ECOSAR v0.99h):
    Class(es) found:
       Neutral Organics

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   6.60E-005  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  4.389E-009 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  5.26  (KowWin est)
  Log Kaw used:  -2.569  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  7.829
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.0452
   Biowin2 (Non-Linear Model)     :   0.0007
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   1.8099  (months      )
   Biowin4 (Primary Survey Model) :   2.8883  (weeks       )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.2649
   Biowin6 (MITI Non-Linear Model):   0.0292
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -1.7526
 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):  2.49E-005 Pa (1.87E-007 mm Hg)
  Log Koa (Koawin est  ): 7.829
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.12 
       Octanol/air (Koa) model:  1.66E-005 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.813 
       Mackay model           :  0.906 
       Octanol/air (Koa) model:  0.00132 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 111.5465 E-12 cm3/molecule-sec
      Half-Life =     0.096 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     1.151 Hrs
   Ozone Reaction:
      OVERALL Ozone Rate Constant =     7.393750 E-17 cm3/molecule-sec
      Half-Life =     0.155 Days (at 7E11 mol/cm3)
      Half-Life =      3.720 Hrs
   Fraction sorbed to airborne particulates (phi): 0.859 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  6795
      Log Koc:  3.832 

 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 = 3.351 (BCF = 2242)
       log Kow used: 5.26 (estimated)

 Volatilization from Water:
    Henry LC:  6.6E-005 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:      17.98  hours
    Half-Life from Model Lake :      348.6  hours   (14.53 days)

 Removal In Wastewater Treatment:
    Total removal:              84.51  percent
    Total biodegradation:        0.72  percent
    Total sludge adsorption:    83.43  percent
    Total to Air:                0.36  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       0.0326          1.42         1000       
   Water     6.07            1.44e+003    1000       
   Soil      61.7            2.88e+003    1000       
   Sediment  32.2            1.3e+004     0          
     Persistence Time: 2.36e+003 hr