ChemSpider 2D Image | 3,4-Dihydroxyestra-1,3,5(10),7-tetraen-17-one | C18H20O3

3,4-Dihydroxyestra-1,3,5(10),7-tetraen-17-one

  • Molecular FormulaC18H20O3
  • Average mass284.350 Da
  • Monoisotopic mass284.141235 Da
  • ChemSpider ID117950

  • defined stereocentres - 3 of 3 defined stereocentres

More details:

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

3,4-Dihydroxyestra-1,3,5(10),7-tetraen-17-on [German] [ACD/IUPAC Name]
3,4-Dihydroxyestra-1,3,5(10),7-tetraen-17-one [ACD/IUPAC Name]
3,4-Dihydroxyestra-1,3,5(10),7-tétraén-17-one [French] [ACD/IUPAC Name]
Estra-1,3,5(10),7-tetraen-17-one, 3,4-dihydroxy- [ACD/Index Name]
4-Hydroxyequilin
81608-62-0 [RN]

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

Density: 1.3±0.1 g/cm3
Boiling Point: 482.5±45.0 °C at 760 mmHg
Vapour Pressure: 0.0±1.3 mmHg at 25°C
Enthalpy of Vaporization: 77.6±3.0 kJ/mol
Flash Point: 259.7±25.2 °C
Index of Refraction: 1.653
Molar Refractivity: 79.0±0.4 cm3
#H bond acceptors: 3
#H bond donors: 2
#Freely Rotating Bonds: 0
#Rule of 5 Violations: 0
ACD/LogP: 2.92
ACD/LogD (pH 5.5): 2.77
ACD/BCF (pH 5.5): 75.45
ACD/KOC (pH 5.5): 768.50
ACD/LogD (pH 7.4): 2.77
ACD/BCF (pH 7.4): 75.00
ACD/KOC (pH 7.4): 763.89
Polar Surface Area: 58 Å2
Polarizability: 31.3±0.5 10-24cm3
Surface Tension: 62.2±5.0 dyne/cm
Molar Volume: 215.7±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) =  2.87

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  430.59  (Adapted Stein & Brown method)
    Melting Pt (deg C):  180.18  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  1.44E-009  (Modified Grain method)
    Subcooled liquid VP: 5.95E-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):  205.2
       log Kow used: 2.87 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  163.26 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   4.10E-014  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  2.626E-012 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  2.87  (KowWin est)
  Log Kaw used:  -11.776  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  14.646
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.7760
   Biowin2 (Non-Linear Model)     :   0.4418
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.2992  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.2041  (weeks       )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.2289
   Biowin6 (MITI Non-Linear Model):   0.0970
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -0.7163
 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):  7.93E-006 Pa (5.95E-008 mm Hg)
  Log Koa (Koawin est  ): 14.646
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.378 
       Octanol/air (Koa) model:  109 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.932 
       Mackay model           :  0.968 
       Octanol/air (Koa) model:  1 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 174.9046 E-12 cm3/molecule-sec
      Half-Life =     0.061 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     0.734 Hrs
   Ozone Reaction:
      OVERALL Ozone Rate Constant =    43.000000 E-17 cm3/molecule-sec
      Half-Life =     0.027 Days (at 7E11 mol/cm3)
      Half-Life =     38.378 Min
   Reaction With Nitrate Radicals May Be Important!
   Fraction sorbed to airborne particulates (phi): 0.95 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  5.057E+004
      Log Koc:  4.704 

 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 = 1.507 (BCF = 32.12)
       log Kow used: 2.87 (estimated)

 Volatilization from Water:
    Henry LC:  4.1E-014 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 2.408E+010  hours   (1.003E+009 days)
    Half-Life from Model Lake : 2.627E+011  hours   (1.095E+010 days)

 Removal In Wastewater Treatment:
    Total removal:               4.73  percent
    Total biodegradation:        0.12  percent
    Total sludge adsorption:     4.61  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       6.13e-006       0.445        1000       
   Water     13.4            900          1000       
   Soil      86.4            1.8e+003     1000       
   Sediment  0.23            8.1e+003     0          
     Persistence Time: 1.75e+003 hr

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