ChemSpider 2D Image | 7a-Hydroxy-cholestene-3-one | C27H44O2

7a-Hydroxy-cholestene-3-one

  • Molecular FormulaC27H44O2
  • Average mass400.637 Da
  • Monoisotopic mass400.334137 Da
  • ChemSpider ID110306
  • defined stereocentres - 8 of 8 defined stereocentres


More details:






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

7a-Hydroxy-cholestene-3-one
(7α)-7-Hydroxycholest-4-en-3-on [German] [ACD/IUPAC Name]
(7α)-7-Hydroxycholest-4-en-3-one [ACD/IUPAC Name]
(7α)-7-Hydroxycholest-4-én-3-one [French] [ACD/IUPAC Name]
(7α,8ξ)-7-hydroxycholest-4-en-3-one
7α-hydroxycholest-4-en-3-one
Cholest-4-en-3-one, 7-hydroxy-, (7α)- [ACD/Index Name]
cholest-4-en-3-one, 7-hydroxy-, (7α,8ξ)-
7 α-3ox-C
7 α-hydroxy-4-cholesten-3-one
More...

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

C03775 [DBID]
CHEBI:17899 [DBID]
LMST04030123 [DBID]
  • Experimental Physico-chemical Properties
  • Miscellaneous
    • Chemical Class:

      A cholestanoid consisting of a cholesterol core having an oxo group at the 3-position, a C<bond>2</bond>C bond at the 4,5-position and an <stereo>alpha</stereo>-hydroxy group at the 7-position. ChEBI CHEBI:17899

Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module

Density: 1.0±0.1 g/cm3
Boiling Point: 516.7±29.0 °C at 760 mmHg
Vapour Pressure: 0.0±3.0 mmHg at 25°C
Enthalpy of Vaporization: 90.8±6.0 kJ/mol
Flash Point: 218.5±16.9 °C
Index of Refraction: 1.531
Molar Refractivity: 120.1±0.4 cm3
#H bond acceptors: 2
#H bond donors: 1
#Freely Rotating Bonds: 5
#Rule of 5 Violations: 1
ACD/LogP: 7.57
ACD/LogD (pH 5.5): 6.00
ACD/BCF (pH 5.5): 21270.67
ACD/KOC (pH 5.5): 43592.52
ACD/LogD (pH 7.4): 6.00
ACD/BCF (pH 7.4): 21270.67
ACD/KOC (pH 7.4): 43592.52
Polar Surface Area: 37 Å2
Polarizability: 47.6±0.5 10-24cm3
Surface Tension: 40.3±5.0 dyne/cm
Molar Volume: 388.3±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) =  6.98

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  465.49  (Adapted Stein & Brown method)
    Melting Pt (deg C):  191.00  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  3.78E-011  (Modified Grain method)
    Subcooled liquid VP: 2.08E-009 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):  0.0108
       log Kow used: 6.98 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  0.010323 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 :   3.40E-008  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  1.845E-009 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  6.98  (KowWin est)
  Log Kaw used:  -5.857  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  12.837
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.3545
   Biowin2 (Non-Linear Model)     :   0.0042
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.0270  (months      )
   Biowin4 (Primary Survey Model) :   3.0700  (weeks       )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.1898
   Biowin6 (MITI Non-Linear Model):   0.0150
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -1.4595
 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):  2.77E-007 Pa (2.08E-009 mm Hg)
  Log Koa (Koawin est  ): 12.837
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  10.8 
       Octanol/air (Koa) model:  1.69 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.997 
       Mackay model           :  0.999 
       Octanol/air (Koa) model:  0.993 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 121.9861 E-12 cm3/molecule-sec
      Half-Life =     0.088 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     1.052 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): 0.998 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  1.324E+005
      Log Koc:  5.122 

 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 = 4.673 (BCF = 4.706e+004)
       log Kow used: 6.98 (estimated)

 Volatilization from Water:
    Henry LC:  3.4E-008 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 3.447E+004  hours   (1436 days)
    Half-Life from Model Lake : 3.762E+005  hours   (1.568E+004 days)

 Removal In Wastewater Treatment:
    Total removal:              93.84  percent
    Total biodegradation:        0.78  percent
    Total sludge adsorption:    93.06  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       0.018           1.94         1000       
   Water     1.56            1.44e+003    1000       
   Soil      31.7            2.88e+003    1000       
   Sediment  66.7            1.3e+004     0          
     Persistence Time: 4.66e+003 hr




                    

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