ChemSpider 2D Image | (11beta,20R)-11,17,20,21-Tetrahydroxy-18,20-epoxypregn-4-en-3-one | C21H30O6

(11β,20R)-11,17,20,21-Tetrahydroxy-18,20-epoxypregn-4-en-3-one

  • Molecular FormulaC21H30O6
  • Average mass378.459 Da
  • Monoisotopic mass378.204254 Da
  • ChemSpider ID9276064

  • defined stereocentres - 8 of 8 defined stereocentres

More details:

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

(11β,20R)-11,17,20,21-Tetrahydroxy-18,20-epoxypregn-4-en-3-on [German] [ACD/IUPAC Name]
(11β,20R)-11,17,20,21-Tetrahydroxy-18,20-epoxypregn-4-en-3-one [ACD/IUPAC Name]
(11β,20R)-11,17,20,21-Tétrahydroxy-18,20-époxyprégn-4-én-3-one [French] [ACD/IUPAC Name]
144302-17-0 [RN]
Pregn-4-en-3-one, 18,20-epoxy-11,17,20,21-tetrahydroxy-, (11β,20R)- [ACD/Index Name]
18-Hydroxycortisol (Hemiketal)
Pregn-4-ene-3,20-dione, 11,17,18,21-tetrahydroxy-, (11β)- [ACD/Index Name]

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

T8YUY43659 [DBID]

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

Density: 1.4±0.1 g/cm3
Boiling Point: 606.1±55.0 °C at 760 mmHg
Vapour Pressure: 0.0±3.9 mmHg at 25°C
Enthalpy of Vaporization: 103.3±6.0 kJ/mol
Flash Point: 214.3±25.0 °C
Index of Refraction: 1.637
Molar Refractivity: 96.7±0.4 cm3
#H bond acceptors: 6
#H bond donors: 4
#Freely Rotating Bonds: 1
#Rule of 5 Violations: 0
ACD/LogP: 0.66
ACD/LogD (pH 5.5): 0.76
ACD/BCF (pH 5.5): 2.23
ACD/KOC (pH 5.5): 61.77
ACD/LogD (pH 7.4): 0.76
ACD/BCF (pH 7.4): 2.23
ACD/KOC (pH 7.4): 61.76
Polar Surface Area: 107 Å2
Polarizability: 38.3±0.5 10-24cm3
Surface Tension: 69.6±5.0 dyne/cm
Molar Volume: 269.5±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) =  1.26

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  526.35  (Adapted Stein & Brown method)
    Melting Pt (deg C):  224.91  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  1.87E-014  (Modified Grain method)
    Subcooled liquid VP: 2.6E-012 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):  348.2
       log Kow used: 1.26 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  1e+006 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 :   1.49E-016  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  2.674E-017 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  1.26  (KowWin est)
  Log Kaw used:  -14.215  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  15.475
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :  -0.1914
   Biowin2 (Non-Linear Model)     :   0.0000
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   1.8031  (months      )
   Biowin4 (Primary Survey Model) :   2.9149  (weeks       )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.5618
   Biowin6 (MITI Non-Linear Model):   0.0982
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -1.8139
 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):  3.47E-010 Pa (2.6E-012 mm Hg)
  Log Koa (Koawin est  ): 15.475
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  8.65E+003 
       Octanol/air (Koa) model:  733 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  1 
       Mackay model           :  1 
       Octanol/air (Koa) model:  1 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 127.6822 E-12 cm3/molecule-sec
      Half-Life =     0.084 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     1.005 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): 1 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  67.49
      Log Koc:  1.829 

 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 = 0.271 (BCF = 1.866)
       log Kow used: 1.26 (estimated)

 Volatilization from Water:
    Henry LC:  1.49E-016 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 7.644E+012  hours   (3.185E+011 days)
    Half-Life from Model Lake : 8.339E+013  hours   (3.475E+012 days)

 Removal In Wastewater Treatment:
    Total removal:               1.92  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.83  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       0.000746        1.86         1000       
   Water     39.4            1.44e+003    1000       
   Soil      60.5            2.88e+003    1000       
   Sediment  0.0907          1.3e+004     0          
     Persistence Time: 1.37e+003 hr

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