ChemSpider 2D Image | Febuxostat | C16H16N2O3S

Febuxostat

  • Molecular FormulaC16H16N2O3S
  • Average mass316.375 Da
  • Monoisotopic mass316.088165 Da
  • ChemSpider ID118173

More details:

Featured data source
The Merck Index Online

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

144060-53-7 [RN]
2-(3-Cyan-4-isobutoxyphenyl)-4-methyl-1,3-thiazol-5-carbonsäure [German] [ACD/IUPAC Name]
2-(3-Cyano-4-(2-methylpropoxy)phenyl)-4-methylthiazole-5-carboxylic acid
2-(3-Cyano-4-isobutoxyphenyl)-4-methyl-1,3-thiazole-5-carboxylic acid [ACD/IUPAC Name]
2-(3-cyano-4-isobutoxyphenyl)-4-methyl-5-thiazolecarboxylic acid
2-[3-cyano-4-(2-methylpropoxy)phenyl]-4-methyl-1,3-thiazole-5-carboxylic acid
5-Thiazolecarboxylic acid, 2-(3-cyano-4-(2-methylpropoxy)phenyl)-4-methyl-
5-Thiazolecarboxylic acid, 2-[3-cyano-4-(2-methylpropoxy)phenyl]-4-methyl- [ACD/Index Name]
Acide 2-(3-cyano-4-isobutoxyphényl)-4-méthyl-1,3-thiazole-5-carboxylique [French] [ACD/IUPAC Name]
Adenuric
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Validated by Experts, Validated by Users, Non-Validated, Removed by Users

TMX-67 [DBID]
CCRIS 4693 [DBID]
D01206 [DBID]
RRT [DBID]
TEI 6720 [DBID]
TEI-6720 [DBID]
TMX 67 [DBID]

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

    Density: 1.3±0.1 g/cm3
    Boiling Point: 536.6±60.0 °C at 760 mmHg
    Vapour Pressure: 0.0±1.5 mmHg at 25°C
    Enthalpy of Vaporization: 85.6±3.0 kJ/mol
    Flash Point: 278.3±32.9 °C
    Index of Refraction: 1.606
    Molar Refractivity: 83.1±0.4 cm3
    #H bond acceptors: 5
    #H bond donors: 1
    #Freely Rotating Bonds: 6
    #Rule of 5 Violations: 0
    ACD/LogP: 4.87
    ACD/LogD (pH 5.5): 1.02
    ACD/BCF (pH 5.5): 1.00
    ACD/KOC (pH 5.5): 4.51
    ACD/LogD (pH 7.4): 0.69
    ACD/BCF (pH 7.4): 1.00
    ACD/KOC (pH 7.4): 2.07
    Polar Surface Area: 111 Å2
    Polarizability: 32.9±0.5 10-24cm3
    Surface Tension: 63.8±5.0 dyne/cm
    Molar Volume: 241.0±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) =  4.21

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  488.18  (Adapted Stein & Brown method)
    Melting Pt (deg C):  207.08  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  6.41E-010  (Modified Grain method)
    Subcooled liquid VP: 5.45E-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):  1.348
       log Kow used: 4.21 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  0.45109 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   8.74E-015  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  1.980E-010 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  4.21  (KowWin est)
  Log Kaw used:  -12.447  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  16.657
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   1.2674
   Biowin2 (Non-Linear Model)     :   0.9998
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.3725  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.3424  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.4805
   Biowin6 (MITI Non-Linear Model):   0.1722
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.3226
 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):  7.27E-006 Pa (5.45E-008 mm Hg)
  Log Koa (Koawin est  ): 16.657
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.413 
       Octanol/air (Koa) model:  1.11E+004 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.937 
       Mackay model           :  0.971 
       Octanol/air (Koa) model:  1 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  18.9009 E-12 cm3/molecule-sec
      Half-Life =     0.566 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     6.791 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 0.954 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  1112
      Log Koc:  3.046 

 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 = 0.500 (BCF = 3.162)
       log Kow used: 4.21 (estimated)

 Volatilization from Water:
    Henry LC:  8.74E-015 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 1.192E+011  hours   (4.965E+009 days)
    Half-Life from Model Lake :   1.3E+012  hours   (5.416E+010 days)

 Removal In Wastewater Treatment:
    Total removal:              40.46  percent
    Total biodegradation:        0.40  percent
    Total sludge adsorption:    40.06  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       1.44e-006       13.6         1000       
   Water     10.6            900          1000       
   Soil      85.3            1.8e+003     1000       
   Sediment  4.09            8.1e+003     0          
     Persistence Time: 1.92e+003 hr

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