ChemSpider 2D Image | CLOBETASOL | C22H28ClFO4

CLOBETASOL

  • Molecular FormulaC22H28ClFO4
  • Average mass410.907 Da
  • Monoisotopic mass410.166016 Da
  • ChemSpider ID4470588
  • defined stereocentres - 8 of 8 defined stereocentres


More details:



Featured data source



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(11b,16b)-21-Chloro-9-fluoro-11,17-dihydroxy-16-methylpregna-1,4-diene-3,20-dione
(11β,16β)-21-Chlor-9-fluor-11,17-dihydroxy-16-methylpregna-1,4-dien-3,20-dion [German] [ACD/IUPAC Name]
(11β,16β)-21-Chloro-9-fluoro-11,17-dihydroxy-16-methylpregna-1,4-diene-3,20-dione [ACD/IUPAC Name]
(11β,16β)-21-Chloro-9-fluoro-11,17-dihydroxy-16-méthylprégna-1,4-diène-3,20-dione [French] [ACD/IUPAC Name]
246-633-8 [EINECS]
25122-41-2 [RN]
3154
ADN79D536H
CLOBETASOL [Wiki]
clobetasolum [INN_la]
More...
  • Experimental Physico-chemical Properties
  • Miscellaneous
    • Safety:

      D07AD01 Wikidata Q4224007
    • Chemical Class:

      A 3-oxo-<greek>Delta</greek><smallsup>1</smallsup>,<greek>Delta</greek><smallsup>4</smallsup>-steroid that is 16<stereo>beta</stereo>-methylpregna-1,4-diene-3,20-dione bearing hydroxy groups at the 11 <stereo>beta</stereo> and 17<stereo>alpha</stereo> positions, fluorine at position 9, and a chlorine substituent at position 21. It is used as its 17<stereo>alpha</stereo>-propionate ester to treat va rious skin disorders, including exzema and psoriasis. ChEBI CHEBI:205919

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

Density: 1.3±0.1 g/cm3
Boiling Point: 555.1±50.0 °C at 760 mmHg
Vapour Pressure: 0.0±3.4 mmHg at 25°C
Enthalpy of Vaporization: 96.1±6.0 kJ/mol
Flash Point: 289.5±30.1 °C
Index of Refraction: 1.582
Molar Refractivity: 103.5±0.4 cm3
#H bond acceptors: 4
#H bond donors: 2
#Freely Rotating Bonds: 2
#Rule of 5 Violations: 0
ACD/LogP: 2.74
ACD/LogD (pH 5.5): 2.74
ACD/BCF (pH 5.5): 70.88
ACD/KOC (pH 5.5): 734.86
ACD/LogD (pH 7.4): 2.74
ACD/BCF (pH 7.4): 70.88
ACD/KOC (pH 7.4): 734.84
Polar Surface Area: 75 Å2
Polarizability: 41.0±0.5 10-24cm3
Surface Tension: 52.3±5.0 dyne/cm
Molar Volume: 310.2±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) =  2.31
    Log Kow (Exper. database match) =  2.48
       Exper. Ref:  Hansch,C et al. (1995)

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  496.55  (Adapted Stein & Brown method)
    Melting Pt (deg C):  210.98  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  1.24E-012  (Modified Grain method)
    MP  (exp database):  195.5-197 deg C
    Subcooled liquid VP: 7.73E-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):  19.97
       log Kow used: 2.48 (expkow database)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  22.557 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 :   1.62E-010  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  3.357E-014 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  2.48  (exp database)
  Log Kaw used:  -8.179  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  10.659
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :  -0.1228
   Biowin2 (Non-Linear Model)     :   0.0000
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   1.3844  (recalcitrant)
   Biowin4 (Primary Survey Model) :   2.6255  (weeks-months)
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.3731
   Biowin6 (MITI Non-Linear Model):   0.0002
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -1.9221
 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):  1.03E-008 Pa (7.73E-011 mm Hg)
  Log Koa (Koawin est  ): 10.659
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  291 
       Octanol/air (Koa) model:  0.0112 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  1 
       Mackay model           :  1 
       Octanol/air (Koa) model:  0.472 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  67.1754 E-12 cm3/molecule-sec
      Half-Life =     0.159 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     1.911 Hrs
   Ozone Reaction:
      OVERALL Ozone Rate Constant =     1.312500 E-17 cm3/molecule-sec
      Half-Life =     0.873 Days (at 7E11 mol/cm3)
      Half-Life =     20.955 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    :  95.97
      Log Koc:  1.982 

 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 = 1.210 (BCF = 16.2)
       log Kow used: 2.48 (expkow database)

 Volatilization from Water:
    Henry LC:  1.62E-010 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 7.326E+006  hours   (3.053E+005 days)
    Half-Life from Model Lake : 7.992E+007  hours   (3.33E+006 days)

 Removal In Wastewater Treatment:
    Total removal:               3.04  percent
    Total biodegradation:        0.10  percent
    Total sludge adsorption:     2.94  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       0.0463          3.23         1000       
   Water     15.9            4.32e+003    1000       
   Soil      83.9            8.64e+003    1000       
   Sediment  0.138           3.89e+004    0          
     Persistence Time: 2.81e+003 hr




                    

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