ChemSpider 2D Image | (7alpha,8xi,17alpha)-17-Hydroxy-7-methylpregn-4-en-20-yn-3-one | C22H30O2

(7α,8ξ,17α)-17-Hydroxy-7-methylpregn-4-en-20-yn-3-one

  • Molecular FormulaC22H30O2
  • Average mass326.472 Da
  • Monoisotopic mass326.224579 Da
  • ChemSpider ID19989051

  • defined stereocentres - 7 of 7 defined stereocentres

More details:

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

(7α,8ξ,17α)-17-Hydroxy-7-methylpregn-4-en-20-in-3-on [German] [ACD/IUPAC Name]
(7α,8ξ,17α)-17-Hydroxy-7-methylpregn-4-en-20-yn-3-one [ACD/IUPAC Name]
(7α,8ξ,17α)-17-Hydroxy-7-méthylprégn-4-én-20-yn-3-one [French] [ACD/IUPAC Name]
Pregn-4-en-20-yn-3-one, 17-hydroxy-7-methyl-, (7α,17α)-
Pregn-4-en-20-yn-3-one, 17-hydroxy-7-methyl-, (7α,8ξ,17α)- [ACD/Index Name]

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

Density: 1.1±0.1 g/cm3
Boiling Point: 452.8±45.0 °C at 760 mmHg
Vapour Pressure: 0.0±2.5 mmHg at 25°C
Enthalpy of Vaporization: 82.1±6.0 kJ/mol
Flash Point: 192.8±21.3 °C
Index of Refraction: 1.565
Molar Refractivity: 94.8±0.4 cm3
#H bond acceptors: 2
#H bond donors: 1
#Freely Rotating Bonds: 1
#Rule of 5 Violations: 0
ACD/LogP: 4.36
ACD/LogD (pH 5.5): 3.61
ACD/BCF (pH 5.5): 326.70
ACD/KOC (pH 5.5): 2194.00
ACD/LogD (pH 7.4): 3.61
ACD/BCF (pH 7.4): 326.70
ACD/KOC (pH 7.4): 2193.99
Polar Surface Area: 37 Å2
Polarizability: 37.6±0.5 10-24cm3
Surface Tension: 46.5±5.0 dyne/cm
Molar Volume: 290.9±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) =  3.86

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  414.00  (Adapted Stein & Brown method)
    Melting Pt (deg C):  172.42  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  2.14E-009  (Modified Grain method)
    Subcooled liquid VP: 7.17E-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):  14.02
       log Kow used: 3.86 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  4.1768 mg/L

 ECOSAR Class Program (ECOSAR v0.99h):
    Class(es) found:
       Vinyl/Allyl Ketones
       Propargyl Alc-hindered

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   1.02E-009  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  6.557E-011 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  3.86  (KowWin est)
  Log Kaw used:  -7.380  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  11.240
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.0472
   Biowin2 (Non-Linear Model)     :   0.0007
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   1.8188  (months      )
   Biowin4 (Primary Survey Model) :   2.8942  (weeks       )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.2567
   Biowin6 (MITI Non-Linear Model):   0.0255
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -1.5530
 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):  9.56E-006 Pa (7.17E-008 mm Hg)
  Log Koa (Koawin est  ): 11.240
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.314 
       Octanol/air (Koa) model:  0.0427 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.919 
       Mackay model           :  0.962 
       Octanol/air (Koa) model:  0.773 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 111.3327 E-12 cm3/molecule-sec
      Half-Life =     0.096 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     1.153 Hrs
   Ozone Reaction:
      OVERALL Ozone Rate Constant =     1.140500 E-17 cm3/molecule-sec
      Half-Life =     1.005 Days (at 7E11 mol/cm3)
      Half-Life =     24.116 Hrs
   Fraction sorbed to airborne particulates (phi): 0.94 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  6888
      Log Koc:  3.838 

 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 = 2.272 (BCF = 187.1)
       log Kow used: 3.86 (estimated)

 Volatilization from Water:
    Henry LC:  1.02E-009 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 1.037E+006  hours   (4.321E+004 days)
    Half-Life from Model Lake : 1.131E+007  hours   (4.714E+005 days)

 Removal In Wastewater Treatment:
    Total removal:              24.11  percent
    Total biodegradation:        0.27  percent
    Total sludge adsorption:    23.83  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       0.0308          2.1          1000       
   Water     11.3            1.44e+003    1000       
   Soil      86.3            2.88e+003    1000       
   Sediment  2.4             1.3e+004     0          
     Persistence Time: 2.08e+003 hr

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