ChemSpider 2D Image | (16alpha)-16,17,21-Trihydroxypregn-4-ene-3,20-dione | C21H30O5

(16α)-16,17,21-Trihydroxypregn-4-ene-3,20-dione

  • Molecular FormulaC21H30O5
  • Average mass362.460 Da
  • Monoisotopic mass362.209320 Da
  • ChemSpider ID167479

  • defined stereocentres - 7 of 7 defined stereocentres

More details:

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

(16α)-16,17,21-Trihydroxypregn-4-en-3,20-dion [German] [ACD/IUPAC Name]
(16α)-16,17,21-Trihydroxypregn-4-ene-3,20-dione [ACD/IUPAC Name]
(16α)-16,17,21-Trihydroxyprégn-4-ène-3,20-dione [French] [ACD/IUPAC Name]
Pregn-4-ene-3,20-dione, 16,17,21-trihydroxy-, (16α)- [ACD/Index Name]
(8R,9S,10R,13S,14S,16R,17S)-16,17-DIHYDROXY-17-(2-HYDROXYACETYL)-10,13-DIMETHYL-2,6,7,8,9,11,12,14,15,16-DECAHYDRO-1H-CYCLOPENTA[A]PHENANTHREN-3-ONE
(8R,9S,10R,13S,14S,16R,17S)-16,17-Dihydroxy-17-(2-hydroxyacetyl)-10,13-dimethyl-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3(2H)-one
16α-Hydroxycortexolone
21356-07-0 [RN]
CID 192990

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

Density: 1.3±0.1 g/cm3
Boiling Point: 545.1±50.0 °C at 760 mmHg
Vapour Pressure: 0.0±3.3 mmHg at 25°C
Enthalpy of Vaporization: 94.7±6.0 kJ/mol
Flash Point: 297.5±26.6 °C
Index of Refraction: 1.595
Molar Refractivity: 95.6±0.4 cm3
#H bond acceptors: 5
#H bond donors: 3
#Freely Rotating Bonds: 2
#Rule of 5 Violations: 0
ACD/LogP: 2.20
ACD/LogD (pH 5.5): 1.85
ACD/BCF (pH 5.5): 15.00
ACD/KOC (pH 5.5): 241.76
ACD/LogD (pH 7.4): 1.85
ACD/BCF (pH 7.4): 15.00
ACD/KOC (pH 7.4): 241.76
Polar Surface Area: 95 Å2
Polarizability: 37.9±0.5 10-24cm3
Surface Tension: 58.8±5.0 dyne/cm
Molar Volume: 281.4±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) =  2.82

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  504.14  (Adapted Stein & Brown method)
    Melting Pt (deg C):  214.53  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  1.35E-013  (Modified Grain method)
    Subcooled liquid VP: 1.41E-011 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):  20.53
       log Kow used: 2.82 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  336.11 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 :   5.77E-008  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  3.136E-015 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  2.82  (KowWin est)
  Log Kaw used:  -5.627  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  8.447
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.3543
   Biowin2 (Non-Linear Model)     :   0.0025
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.0368  (months      )
   Biowin4 (Primary Survey Model) :   3.0789  (weeks       )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.6387
   Biowin6 (MITI Non-Linear Model):   0.1929
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -1.5738
 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):  1.88E-009 Pa (1.41E-011 mm Hg)
  Log Koa (Koawin est  ): 8.447
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  1.6E+003 
       Octanol/air (Koa) model:  6.87E-005 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  1 
       Mackay model           :  1 
       Octanol/air (Koa) model:  0.00547 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 123.4271 E-12 cm3/molecule-sec
      Half-Life =     0.087 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     1.040 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    :  36.81
      Log Koc:  1.566 

 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 = 1.468 (BCF = 29.35)
       log Kow used: 2.82 (estimated)

 Volatilization from Water:
    Henry LC:  5.77E-008 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 1.932E+004  hours   (805 days)
    Half-Life from Model Lake : 2.109E+005  hours   (8789 days)

 Removal In Wastewater Treatment:
    Total removal:               4.42  percent
    Total biodegradation:        0.11  percent
    Total sludge adsorption:     4.31  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       0.0551          1.92         1000       
   Water     16.9            1.44e+003    1000       
   Soil      82.8            2.88e+003    1000       
   Sediment  0.28            1.3e+004     0          
     Persistence Time: 1.53e+003 hr

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