ChemSpider 2D Image | p-quinomethane | C7H6O

p-quinomethane

  • Molecular FormulaC7H6O
  • Average mass106.122 Da
  • Monoisotopic mass106.041862 Da
  • ChemSpider ID120102

More details:

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

2,5-Cyclohexadien-1-one, 4-methylene- [ACD/Index Name]
2,5-Cyclohexadiene-1-one, 4-methylene-
4-Methylen-2,5-cyclohexadien-1-on [German] [ACD/IUPAC Name]
4-Methylene-2,5-cyclohexadien-1-one [ACD/IUPAC Name]
4-Méthylène-2,5-cyclohexadién-1-one [French] [ACD/IUPAC Name]
502-87-4 [RN]
p-quinomethane
p-quinone methide
p-Quinonemethide
2,4-Cyclohexadien-1-one,6-methylene-
More...

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

Density: 1.0±0.1 g/cm3
Boiling Point: 204.9±7.0 °C at 760 mmHg
Vapour Pressure: 0.3±0.4 mmHg at 25°C
Enthalpy of Vaporization: 44.1±3.0 kJ/mol
Flash Point: 77.3±13.1 °C
Index of Refraction: 1.523
Molar Refractivity: 31.9±0.4 cm3
#H bond acceptors: 1
#H bond donors: 0
#Freely Rotating Bonds: 0
#Rule of 5 Violations: 0
ACD/LogP: 0.68
ACD/LogD (pH 5.5): 0.97
ACD/BCF (pH 5.5): 3.21
ACD/KOC (pH 5.5): 80.13
ACD/LogD (pH 7.4): 0.97
ACD/BCF (pH 7.4): 3.21
ACD/KOC (pH 7.4): 80.13
Polar Surface Area: 17 Å2
Polarizability: 12.6±0.5 10-24cm3
Surface Tension: 31.1±5.0 dyne/cm
Molar Volume: 104.4±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) =  1.40

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  176.67  (Adapted Stein & Brown method)
    Melting Pt (deg C):  -9.99  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  1.54  (Mean VP of Antoine & Grain methods)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  7204
       log Kow used: 1.40 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  1212 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 :   8.71E-006  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  2.985E-005 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  1.40  (KowWin est)
  Log Kaw used:  -3.448  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  4.848
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.7039
   Biowin2 (Non-Linear Model)     :   0.7405
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.9422  (weeks       )
   Biowin4 (Primary Survey Model) :   3.6724  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.5513
   Biowin6 (MITI Non-Linear Model):   0.6146
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.0031
 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):  188 Pa (1.41 mm Hg)
  Log Koa (Koawin est  ): 4.848
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  1.6E-008 
       Octanol/air (Koa) model:  1.73E-008 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  5.76E-007 
       Mackay model           :  1.28E-006 
       Octanol/air (Koa) model:  1.38E-006 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  45.4963 E-12 cm3/molecule-sec
      Half-Life =     0.235 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     2.821 Hrs
   Ozone Reaction:
      OVERALL Ozone Rate Constant =     0.985000 E-17 cm3/molecule-sec
      Half-Life =     1.163 Days (at 7E11 mol/cm3)
      Half-Life =     27.923 Hrs
   Fraction sorbed to airborne particulates (phi): 9.26E-007 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  24.54
      Log Koc:  1.390 

 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 = 0.374 (BCF = 2.368)
       log Kow used: 1.40 (estimated)

 Volatilization from Water:
    Henry LC:  8.71E-006 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:       70.3  hours   (2.929 days)
    Half-Life from Model Lake :      853.3  hours   (35.55 days)

 Removal In Wastewater Treatment:
    Total removal:               2.43  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.85  percent
    Total to Air:                0.49  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       0.667           4.69         1000       
   Water     40              360          1000       
   Soil      59.2            720          1000       
   Sediment  0.0906          3.24e+003    0          
     Persistence Time: 358 hr

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