ChemSpider 2D Image | (3β)-3-Hydroxy-16-methylpregna-5,16-dien-20-one | C22H32O2

(3β)-3-Hydroxy-16-methylpregna-5,16-dien-20-one

  • Molecular FormulaC22H32O2
  • Average mass328.488 Da
  • Monoisotopic mass328.240234 Da
  • ChemSpider ID92298

  • defined stereocentres - 6 of 6 defined stereocentres

More details:

Validated by Experts, Validated by Users, Non-Validated, Removed by Users

(3β)-3-Hydroxy-16-methylpregna-5,16-dien-20-one
(3β)-3-Hydroxy-16-methylpregna-5,16-dien-20-on [German] [ACD/IUPAC Name]
(3β)-3-Hydroxy-16-methylpregna-5,16-dien-20-one [ACD/IUPAC Name]
(3β)-3-Hydroxy-16-méthylprégna-5,16-dién-20-one [French] [ACD/IUPAC Name]
1808-63-5 [RN]
217-311-4 [EINECS]
Pregna-5,16-dien-20-one, 3-hydroxy-16-methyl-, (3β)-
Pregna-5,16-dien-20-one, 3-hydroxy-16-methyl-, (3β)- [ACD/Index Name]
Pregna-5,16-dien-20-one, 3β-hydroxy-16-methyl-
16-METHYL-16-DEHYDROPREGNENOLONE
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Validated by Experts, Validated by Users, Non-Validated, Removed by Users

ZINC04082192 [DBID]

Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module, version: 14.00

Density: 1.1±0.1 g/cm3
Boiling Point: 465.5±45.0 °C at 760 mmHg
Vapour Pressure: 0.0±2.6 mmHg at 25°C
Enthalpy of Vaporization: 83.8±6.0 kJ/mol
Flash Point: 198.0±21.3 °C
Index of Refraction: 1.559
Molar Refractivity: 96.5±0.4 cm3
#H bond acceptors: 2
#H bond donors: 1
#Freely Rotating Bonds: 1
#Rule of 5 Violations: 0
ACD/LogP: 4.87
ACD/LogD (pH 5.5): 4.85
ACD/BCF (pH 5.5): 2870.04
ACD/KOC (pH 5.5): 10393.25
ACD/LogD (pH 7.4): 4.85
ACD/BCF (pH 7.4): 2870.04
ACD/KOC (pH 7.4): 10393.25
Polar Surface Area: 37 Å2
Polarizability: 38.2±0.5 10-24cm3
Surface Tension: 42.8±5.0 dyne/cm
Molar Volume: 298.6±5.0 cm3

Predicted data is generated using the US Environmental Protection Agency�s EPISuite™ 

                        
 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  4.64

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  414.29  (Adapted Stein & Brown method)
    Melting Pt (deg C):  164.17  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  2.6E-009  (Modified Grain method)
    Subcooled liquid VP: 7.03E-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):  2.942
       log Kow used: 4.64 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  5.203 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 :   1.01E-008  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  3.820E-010 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  4.64  (KowWin est)
  Log Kaw used:  -6.384  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  11.024
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.3889
   Biowin2 (Non-Linear Model)     :   0.0117
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.1865  (months      )
   Biowin4 (Primary Survey Model) :   3.1741  (weeks       )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.3447
   Biowin6 (MITI Non-Linear Model):   0.0440
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -1.1656
 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):  9.37E-006 Pa (7.03E-008 mm Hg)
  Log Koa (Koawin est  ): 11.024
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.32 
       Octanol/air (Koa) model:  0.0259 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.92 
       Mackay model           :  0.962 
       Octanol/air (Koa) model:  0.675 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 215.1008 E-12 cm3/molecule-sec
      Half-Life =     0.050 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     0.597 Hrs
   Ozone Reaction:
      OVERALL Ozone Rate Constant =    27.356874 E-17 cm3/molecule-sec
      Half-Life =     0.042 Days (at 7E11 mol/cm3)
      Half-Life =      1.005 Hrs
   Fraction sorbed to airborne particulates (phi): 0.941 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  7065
      Log Koc:  3.849 

 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 = 2.873 (BCF = 746)
       log Kow used: 4.64 (estimated)

 Volatilization from Water:
    Henry LC:  1.01E-008 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 1.051E+005  hours   (4378 days)
    Half-Life from Model Lake : 1.146E+006  hours   (4.776E+004 days)

 Removal In Wastewater Treatment:
    Total removal:              63.14  percent
    Total biodegradation:        0.57  percent
    Total sludge adsorption:    62.57  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       0.0131          0.546        1000       
   Water     11              1.44e+003    1000       
   Soil      73.9            2.88e+003    1000       
   Sediment  15              1.3e+004     0          
     Persistence Time: 1.92e+003 hr

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