ChemSpider 2D Image | Isatin | C8H5NO2

Isatin

  • Molecular FormulaC8H5NO2
  • Average mass147.131 Da
  • Monoisotopic mass147.032028 Da
  • ChemSpider ID6787

More details:



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

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  • Experimental Physico-chemical Properties
  • Predicted Physico-chemical Properties
  • Miscellaneous
  • Gas Chromatography
    • Retention Index (Kovats):

      1381 (estimated with error: 89) NIST Spectra mainlib_63709, replib_52720, replib_186855, replib_229356
      1712 (Program type: Isothermal; Col... (show more) umn class: Standard non-polar; Column length: 1.5 m; Column type: Packed; CAS no: 91565; Active phase: SE-30; Carrier gas: He; Substrate: Chromosorb G HP (80-100 mesh); Data type: Kovats RI; Authors: Ramsey, J.D.; Lee, T.D.; Osselton, M.D.; Moffat, A.C., Gas-liquid chromatographic retention indices of 296 non-drug substances on SE-30 or OV-1 likely to be encountered in toxicological analyses, J. Chromatogr., 184, 1980, 185-206.) NIST Spectra nist ri
    • Retention Index (Normal Alkane):

      1712 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column type: Other; CAS no: 91565; Active phase: Methyl Silicone; Data type: Normal alkane RI; Authors: Ardrey, R.E.; Moffat, A.C., Gas-liquid chromatographic retention indices of 1318 substances of toxicological interest on SE-30 or OV-1 stationary phase, J. Chromatogr., 220, 1981, 195-252.) NIST Spectra nist ri

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

Density: 1.4±0.1 g/cm3
Boiling Point: 360.3±52.0 °C at 760 mmHg
Vapour Pressure: 0.0±1.8 mmHg at 25°C
Enthalpy of Vaporization: 70.1±6.0 kJ/mol
Flash Point: 171.7±30.7 °C
Index of Refraction: 1.679
Molar Refractivity: 39.1±0.5 cm3
#H bond acceptors: 3
#H bond donors: 1
#Freely Rotating Bonds: 0
#Rule of 5 Violations: 0
ACD/LogP: -0.17
ACD/LogD (pH 5.5): 0.33
ACD/BCF (pH 5.5): 1.00
ACD/KOC (pH 5.5): 33.19
ACD/LogD (pH 7.4): -0.81
ACD/BCF (pH 7.4): 1.00
ACD/KOC (pH 7.4): 2.42
Polar Surface Area: 50 Å2
Polarizability: 15.5±0.5 10-24cm3
Surface Tension: 57.4±7.0 dyne/cm
Molar Volume: 103.5±7.0 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) =  0.45
    Log Kow (Exper. database match) =  0.83
       Exper. Ref:  Hansch,C et al. (1995)

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  351.96  (Adapted Stein & Brown method)
    Melting Pt (deg C):  127.85  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  1.56E-006  (Modified Grain method)
    MP  (exp database):  203 dec deg C
    Subcooled liquid VP: 0.000119 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):  1.527e+004
       log Kow used: 0.83 (expkow database)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  12678 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   2.21E-011  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  1.978E-011 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  0.83  (exp database)
  Log Kaw used:  -9.044  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  9.874
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.8876
   Biowin2 (Non-Linear Model)     :   0.9737
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.8198  (weeks       )
   Biowin4 (Primary Survey Model) :   3.8409  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.4339
   Biowin6 (MITI Non-Linear Model):   0.4121
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -0.1135
 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):  0.0159 Pa (0.000119 mm Hg)
  Log Koa (Koawin est  ): 9.874
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.000189 
       Octanol/air (Koa) model:  0.00184 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.00678 
       Mackay model           :  0.0149 
       Octanol/air (Koa) model:  0.128 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  38.8866 E-12 cm3/molecule-sec
      Half-Life =     0.275 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     3.301 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 0.0108 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  10
      Log Koc:  1.000 

 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: 0.83 (expkow database)

 Volatilization from Water:
    Henry LC:  2.21E-011 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 3.213E+007  hours   (1.339E+006 days)
    Half-Life from Model Lake : 3.506E+008  hours   (1.461E+007 days)

 Removal In Wastewater Treatment:
    Total removal:               1.87  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.78  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       0.000529        6.6          1000       
   Water     35.8            360          1000       
   Soil      64.1            720          1000       
   Sediment  0.0697          3.24e+003    0          
     Persistence Time: 600 hr




                    

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