ChemSpider 2D Image | Pregnanediol | C21H36O2

Pregnanediol

  • Molecular FormulaC21H36O2
  • Average mass320.509 Da
  • Monoisotopic mass320.271515 Da
  • ChemSpider ID190585
  • defined stereocentres - 9 of 9 defined stereocentres


More details:



Featured data source



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

(3a,5b,20S)-Pregnane-3,20-diol
(3α,5β,20S)-Pregnan-3,20-diol [German] [ACD/IUPAC Name]
(3α,5β,20S)-Pregnane-3,20-diol [ACD/IUPAC Name]
(3α,5β,20S)-Prégnane-3,20-diol [French] [ACD/IUPAC Name]
201-313-7 [EINECS]
20a-Acetoxypregnan-3a-ol
3a,20a-Diacetoxypregnane
3a-Acetoxypregnan-20a-ol
4-06-00-06111 [Beilstein]
80-92-2 [RN]
More...

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

BRN 3083715 [DBID]
C05484 [DBID]
D00189 [DBID]
D03323 [DBID]
NSC 1612 [DBID]
NSC1612 [DBID]
NSC47462 [DBID]
ZINC04403043 [DBID]

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

Density: 1.1±0.1 g/cm3
Boiling Point: 435.9±18.0 °C at 760 mmHg
Vapour Pressure: 0.0±2.4 mmHg at 25°C
Enthalpy of Vaporization: 79.9±6.0 kJ/mol
Flash Point: 191.0±15.8 °C
Index of Refraction: 1.531
Molar Refractivity: 94.1±0.3 cm3
#H bond acceptors: 2
#H bond donors: 2
#Freely Rotating Bonds: 1
#Rule of 5 Violations: 1
ACD/LogP: 5.21
ACD/LogD (pH 5.5): 4.18
ACD/BCF (pH 5.5): 889.66
ACD/KOC (pH 5.5): 4494.21
ACD/LogD (pH 7.4): 4.18
ACD/BCF (pH 7.4): 889.66
ACD/KOC (pH 7.4): 4494.21
Polar Surface Area: 40 Å2
Polarizability: 37.3±0.5 10-24cm3
Surface Tension: 40.1±3.0 dyne/cm
Molar Volume: 304.2±3.0 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) =  4.89

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  405.95  (Adapted Stein & Brown method)
    Melting Pt (deg C):  153.76  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  4.42E-010  (Modified Grain method)
    MP  (exp database):  218.5 deg C
    Subcooled liquid VP: 5.13E-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):  0.6171
       log Kow used: 4.89 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  53.569 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   1.08E-006  atm-m3/mole
   Group Method:   6.89E-011  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  3.021E-010 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  4.89  (KowWin est)
  Log Kaw used:  -4.355  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  9.245
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.5446
   Biowin2 (Non-Linear Model)     :   0.0599
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.3866  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.3373  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.4189
   Biowin6 (MITI Non-Linear Model):   0.0685
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -0.8148
 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):  6.84E-006 Pa (5.13E-008 mm Hg)
  Log Koa (Koawin est  ): 9.245
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.439 
       Octanol/air (Koa) model:  0.000432 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.941 
       Mackay model           :  0.972 
       Octanol/air (Koa) model:  0.0334 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  46.5573 E-12 cm3/molecule-sec
      Half-Life =     0.230 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     2.757 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 0.956 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  2287
      Log Koc:  3.359 

 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 = 3.067 (BCF = 1167)
       log Kow used: 4.89 (estimated)

 Volatilization from Water:
    Henry LC:  1.08E-006 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:      972.4  hours   (40.52 days)
    Half-Life from Model Lake : 1.076E+004  hours   (448.2 days)

 Removal In Wastewater Treatment:
    Total removal:              73.92  percent
    Total biodegradation:        0.65  percent
    Total sludge adsorption:    73.26  percent
    Total to Air:                0.01  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       0.136           5.51         1000       
   Water     11.6            900          1000       
   Soil      67.5            1.8e+003     1000       
   Sediment  20.8            8.1e+003     0          
     Persistence Time: 1.49e+003 hr




                    

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