ChemSpider 2D Image | Pyrone | C5H4O2

Pyrone

  • Molecular FormulaC5H4O2
  • Average mass96.084 Da
  • Monoisotopic mass96.021126 Da
  • ChemSpider ID61462

More details:






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

207-990-5 [EINECS]
2H-Pyran-2-on [German] [ACD/IUPAC Name]
2H-Pyran-2-one [ACD/Index Name] [ACD/IUPAC Name]
2H-Pyran-2-one [French] [ACD/Index Name] [ACD/IUPAC Name]
2-pyranone
2-pyrone
504-31-4 [RN]
oxidopyrylium
pyranone
Pyrone
More...

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

463159_ALDRICH [DBID]
83193_FLUKA [DBID]
ZINC01846601 [DBID]
  • Experimental Physico-chemical Properties
  • Gas Chromatography
    • Retention Index (Kovats):

      909 (estimated with error: 47) NIST Spectra mainlib_156506, replib_877
    • Retention Index (Normal Alkane):

      973 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 6 K/min; Start T: 40 C; End T: 280 C; End time: 9 min; Start time: 1 min; CAS no: 504314; Active phase: ZB-5; Carrier gas: Helium; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Harrison, B.M.; Priest, F.G., Composition of peaks used in the preparation of malt for Scotch Whisky production - influence of geographical source and extraction depth, J. Agric. Food Chem., 57(6), 2009, 2385-2391.) NIST Spectra nist ri
      966.6 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 40 C; End T: 240 C; CAS no: 504314; Active phase: DB-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Moldoveanu, S.C., Pyrolysis GC/MS, present and future (recent past and present needs), J. Microcolumn Sep., 13(3), 2001, 102-125.) NIST Spectra nist ri
      978 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Description: 40C (10min) => 3C/min => 95C =>10C/min => 270C (10min); CAS no: 504314; Active phase: DB-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Mateo, J.; Zumalacarregui, J.M., Volatile compounds in chorizo and their changes during ripening, Meat Sci., 44(4), 1996, 255-273.) NIST Spectra nist ri
      983 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Description: 40C (10min) => 3C/min => 95C =>10C/min => 270C (10min); CAS no: 504314; Active phase: DB-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Mateo, J.; Zumalacarregui, J.M., Volatile compounds in chorizo and their changes during ripening, Meat Sci., 44(4), 1996, 255-273.) NIST Spectra nist ri
      1505 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.28 mm; Column length: 50 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 60 C; End T: 240 C; Start time: 5 min; CAS no: 504314; Active phase: FFAP; Carrier gas: He; Data type: Normal alkane RI; Authors: Vernin, G.; Metzger, J.; Obretenov, T.; Suon, K.-N.; Fraisse, D., GC/MS (EI,PCI,SIM)-data bank analysis of volatile compounds arising from thermal degradation of glucose-valine amadori intermediates, in Flavors and Fragrances: A World Perspective. Proceedings of the 10th International Congress of Essential Oils, Fragrances and Flavors, Lawrence,B.M.; Mookherjee,B.D.; Willis,B.J., ed(s), Elsevier, New York, 1988, 999-1028.) NIST Spectra nist ri

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

Density: 1.2±0.1 g/cm3
Boiling Point: 207.5±0.0 °C at 760 mmHg
Vapour Pressure: 0.2±0.4 mmHg at 25°C
Enthalpy of Vaporization: 44.4±3.0 kJ/mol
Flash Point: 89.2±16.1 °C
Index of Refraction: 1.508
Molar Refractivity: 24.0±0.3 cm3
#H bond acceptors: 2
#H bond donors: 0
#Freely Rotating Bonds: 0
#Rule of 5 Violations: 0
ACD/LogP: -0.20
ACD/LogD (pH 5.5): 0.12
ACD/BCF (pH 5.5): 1.00
ACD/KOC (pH 5.5): 27.59
ACD/LogD (pH 7.4): 0.12
ACD/BCF (pH 7.4): 1.00
ACD/KOC (pH 7.4): 27.59
Polar Surface Area: 26 Å2
Polarizability: 9.5±0.5 10-24cm3
Surface Tension: 39.0±3.0 dyne/cm
Molar Volume: 80.6±3.0 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) =  -0.24

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  204.45  (Adapted Stein & Brown method)
    Melting Pt (deg C):  -29.41  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.248  (Mean VP of Antoine & Grain methods)
    MP  (exp database):  8.5 deg C
    BP  (exp database):  207.5 deg C

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  1.942e+005
       log Kow used: -0.24 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  22347 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   3.08E-004  atm-m3/mole
   Group Method:   7.92E-006  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  1.615E-007 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  -0.24  (KowWin est)
  Log Kaw used:  -1.900  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  1.660
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.8760
   Biowin2 (Non-Linear Model)     :   0.9967
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   3.1270  (weeks       )
   Biowin4 (Primary Survey Model) :   3.9381  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.7948
   Biowin6 (MITI Non-Linear Model):   0.9099
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.7138
 Ready Biodegradability Prediction:   YES

Hydrocarbon Biodegradation (BioHCwin v1.01):
    Structure incompatible with current estimation method!

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
  Vapor pressure (liquid/subcooled):  30.4 Pa (0.228 mm Hg)
  Log Koa (Koawin est  ): 1.660
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  9.87E-008 
       Octanol/air (Koa) model:  1.12E-011 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  3.56E-006 
       Mackay model           :  7.89E-006 
       Octanol/air (Koa) model:  8.98E-010 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  49.7000 E-12 cm3/molecule-sec
      Half-Life =     0.215 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     2.583 Hrs
   Ozone Reaction:
      OVERALL Ozone Rate Constant =     0.810000 E-17 cm3/molecule-sec
      Half-Life =     1.415 Days (at 7E11 mol/cm3)
      Half-Life =     33.956 Hrs
   Fraction sorbed to airborne particulates (phi): 5.73E-006 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  13.16
      Log Koc:  1.119 

 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: -0.24 (estimated)

 Volatilization from Water:
    Henry LC:  7.92E-006 atm-m3/mole  (estimated by Group SAR Method)
    Half-Life from Model River:      73.47  hours   (3.061 days)
    Half-Life from Model Lake :      883.6  hours   (36.82 days)

 Removal In Wastewater Treatment:
    Total removal:               2.29  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.75  percent
    Total to Air:                0.44  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       0.731           4.48         1000       
   Water     48.4            360          1000       
   Soil      50.7            720          1000       
   Sediment  0.0891          3.24e+003    0          
     Persistence Time: 322 hr


 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  -0.24

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  204.45  (Adapted Stein & Brown method)
    Melting Pt (deg C):  -29.41  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.248  (Mean VP of Antoine & Grain methods)
    MP  (exp database):  8.5 deg C
    BP  (exp database):  207.5 deg C

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  1.942e+005
       log Kow used: -0.24 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  22347 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   3.08E-004  atm-m3/mole
   Group Method:   7.92E-006  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  1.615E-007 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  -0.24  (KowWin est)
  Log Kaw used:  -1.900  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  1.660
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.8760
   Biowin2 (Non-Linear Model)     :   0.9967
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   3.1270  (weeks       )
   Biowin4 (Primary Survey Model) :   3.9381  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.7948
   Biowin6 (MITI Non-Linear Model):   0.9099
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.7138
 Ready Biodegradability Prediction:   YES

Hydrocarbon Biodegradation (BioHCwin v1.01):
    Structure incompatible with current estimation method!

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
  Vapor pressure (liquid/subcooled):  30.4 Pa (0.228 mm Hg)
  Log Koa (Koawin est  ): 1.660
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  9.87E-008 
       Octanol/air (Koa) model:  1.12E-011 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  3.56E-006 
       Mackay model           :  7.89E-006 
       Octanol/air (Koa) model:  8.98E-010 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  49.7000 E-12 cm3/molecule-sec
      Half-Life =     0.215 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     2.583 Hrs
   Ozone Reaction:
      OVERALL Ozone Rate Constant =     0.810000 E-17 cm3/molecule-sec
      Half-Life =     1.415 Days (at 7E11 mol/cm3)
      Half-Life =     33.956 Hrs
   Fraction sorbed to airborne particulates (phi): 5.73E-006 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  13.16
      Log Koc:  1.119 

 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: -0.24 (estimated)

 Volatilization from Water:
    Henry LC:  7.92E-006 atm-m3/mole  (estimated by Group SAR Method)
    Half-Life from Model River:      73.47  hours   (3.061 days)
    Half-Life from Model Lake :      883.6  hours   (36.82 days)

 Removal In Wastewater Treatment:
    Total removal:               2.29  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.75  percent
    Total to Air:                0.44  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       0.731           4.48         1000       
   Water     48.4            360          1000       
   Soil      50.7            720          1000       
   Sediment  0.0891          3.24e+003    0          
     Persistence Time: 322 hr




                    

Click to predict properties on the Chemicalize site





Feedback Form