ChemSpider 2D Image | 2,2,6-Trimethyl-1,4-cyclohexanedione | C9H14O2

2,2,6-Trimethyl-1,4-cyclohexanedione

  • Molecular FormulaC9H14O2
  • Average mass154.206 Da
  • Monoisotopic mass154.099380 Da
  • ChemSpider ID28029

More details:






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

1,4-Cyclohexanedione, 2,2,6-trimethyl- [ACD/Index Name]
2,2,6-Trimethyl-1,4-cyclohexandion [German] [ACD/IUPAC Name]
2,2,6-Trimethyl-1,4-cyclohexanedione [ACD/IUPAC Name]
2,2,6-Triméthyl-1,4-cyclohexanedione [French] [ACD/IUPAC Name]
2,2,6-Trimethylcyclohexane-1,4-dione
20547-99-3 [RN]
Cyclohexa-1,4-dione, 2,6,6-trimethyl-
L6V DVTJ B1 B1 F1 [WLN]
1125-20-8/20547-99-3
2,6,6-Trimethyl-1,4-cyclohexa-dione
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Validated by Experts, Validated by Users, Non-Validated, Removed by Users

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

      1258 (estimated with error: 57) NIST Spectra mainlib_46776
      1787 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 40 C; End T: 200 C; Start time: 5 min; CAS no: 20547993; Active phase: DB-Wax; Carrier gas: He; Phase thickness: 0.25 um; Data type: Kovats RI; Authors: Tatsuka, K.; Suekane, S.; Sakai, Y.; Sumitani, H., Volatile constituents of kiwi fruit flowers: simultaneous distillation and extraction versus headspace sampling, J. Agric. Food Chem., 38, 1990, 2176-2180.) NIST Spectra nist ri
    • Retention Index (Normal Alkane):

      1208 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Description: 60 0C ( 1 min) ^ 5 0C/min -> 200 0C (1 min) ^ 20 0C/min -> 280 0C (21 min); CAS no: 20547993; Active phase: HP-5 MS; Carrier gas: Helium; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Jalali-Heravi, M.; Parastar, H.; Ebrahimi-Najafabadi, H., Chracterization of volatile components of Iranian saffron using factorial-based response surface modeling of ultrasonic extraction combined with gas chromatography - mass spectrometry analysis, J. Chromatogr. A, 1216, 2009, 6088-6097.) NIST Spectra nist ri
      1168.5 (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: 30 C; End T: 260 C; End time: 28 min; Start time: 2 min; CAS no: 20547993; Active phase: HP-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Leffingwell, J.C.; Alford, E.D., Volatile constituents of Perique tobacco, Electron. J. Environ. Agric. Food Chem., 4(2), 2005, 899-915.) NIST Spectra nist ri
      1196 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.22 mm; Column length: 50 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 50 C; End T: 250 C; End time: 10 min; Start time: 1 min; CAS no: 20547993; Active phase: BPX-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: D'Arcy, B.R.; Rintoul, G.B.; Rowland, C.Y.; Blackman, A.J., Composition of Australian honey extractives. 1. Norisoprenoids, monoterpenes, and other natural volatiles from blue gum (Eucalyptus leucoxylon) and yellow box (Eucalyptus melliodora) honeys, J. Agric. Food Chem., 45, 1997, 1834-1843.) NIST Spectra nist ri
      1794 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.20 mm; Column length: 50 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 45 C; End T: 190 C; End time: 50 min; Start time: 2 min; CAS no: 20547993; Active phase: HP-Innowax; Carrier gas: Helium; Phase thickness: 0.20 um; Data type: Normal alkane RI; Authors: Soria, A.C.; Sanz, J.; Martinez-Castro, I., SPME followed by GC-MS: a powerful technique for qualitative analysis of honey volatiles, Eur. Food Res. Technol., , 2008, 1-12.) NIST Spectra nist ri
      1773.1 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 10 K/min; Start T: 60 C; End T: 260 C; End time: 7 min; Start time: 3 min; CAS no: 20547993; Active phase: EC-WAX; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Raguso, R.A.; Levin, R.A.; Foose, S.E.; Holmberg, M.W.; McDade, L.A., Fragrance chemistry, nocturnal rhythms and pollination "syndromes" in Nicotiana, Phytochemistry, 63, 2003, 265-284.) NIST Spectra nist ri
    • Retention Index (Linear):

      1183 (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: 3 K/min; Start T: 50 C; End T: 220 C; End time: 20 min; CAS no: 20547993; Active phase: HP-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Xian Q.; Chen H.; Zou H.; Yin D., Chemical composition of essential oils of two submerged macrophytes, Ceratophyllum demersum L. and Vallisneria spiralis L., Flavour Fragr. J., 21, 2006, 524-526.) NIST Spectra nist ri
      1782 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 50 C; End T: 230 C; CAS no: 20547993; Active phase: DB-Wax; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Shimoda, M.; Wu, Y.; Osajima, Y., Aroma compounds from aqueous solution of Haze (Rhus succedanea) honey determined by adsorptive column chromatography, J. Agric. Food Chem., 44, 1996, 3913-3918.) NIST Spectra nist ri
      1740 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 50 C; End T: 230 C; CAS no: 20547993; Active phase: DB-Wax; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Shimoda, M.; Shigematsu, H.; Shiratsuchi, H.; Osajima, Y., Comparison of volatile compounds among different grades of green tea and their relations to odor attributes, J. Agric. Food Chem., 43, 1995, 1621-1625., Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 50 C; End T: 230 C; CAS no: 20547993; Active phase: DB-Wax; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Shimoda, M.; Shigematsu, H.; Shiratsuchi, H.; Osajima, Y., Comparison of the odor concentrates by SDE and adsorptive column method from green tea infusion, J. Agric. Food Chem., 43, 1995, 1616-1620.) NIST Spectra nist ri

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

Density: 1.0±0.1 g/cm3
Boiling Point: 236.4±33.0 °C at 760 mmHg
Vapour Pressure: 0.0±0.5 mmHg at 25°C
Enthalpy of Vaporization: 47.3±3.0 kJ/mol
Flash Point: 86.2±22.4 °C
Index of Refraction: 1.444
Molar Refractivity: 42.0±0.3 cm3
#H bond acceptors: 2
#H bond donors: 0
#Freely Rotating Bonds: 0
#Rule of 5 Violations: 0
ACD/LogP: 0.61
ACD/LogD (pH 5.5): 0.61
ACD/BCF (pH 5.5): 1.73
ACD/KOC (pH 5.5): 51.42
ACD/LogD (pH 7.4): 0.61
ACD/BCF (pH 7.4): 1.73
ACD/KOC (pH 7.4): 51.42
Polar Surface Area: 34 Å2
Polarizability: 16.6±0.5 10-24cm3
Surface Tension: 28.7±3.0 dyne/cm
Molar Volume: 157.9±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) =  0.36

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  247.97  (Adapted Stein & Brown method)
    Melting Pt (deg C):  47.92  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.0294  (Modified Grain method)
    Subcooled liquid VP: 0.0477 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):  3.547e+004
       log Kow used: 0.36 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  65964 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   4.57E-008  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  1.682E-007 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  0.36  (KowWin est)
  Log Kaw used:  -5.729  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  6.089
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.5039
   Biowin2 (Non-Linear Model)     :   0.1406
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.6013  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.4274  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.6096
   Biowin6 (MITI Non-Linear Model):   0.6322
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -0.7212
 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):  6.36 Pa (0.0477 mm Hg)
  Log Koa (Koawin est  ): 6.089
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  4.72E-007 
       Octanol/air (Koa) model:  3.01E-007 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  1.7E-005 
       Mackay model           :  3.77E-005 
       Octanol/air (Koa) model:  2.41E-005 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  12.7296 E-12 cm3/molecule-sec
      Half-Life =     0.840 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    10.083 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 2.74E-005 (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: 0.36 (estimated)

 Volatilization from Water:
    Henry LC:  4.57E-008 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 1.591E+004  hours   (662.9 days)
    Half-Life from Model Lake : 1.737E+005  hours   (7236 days)

 Removal In Wastewater Treatment:
    Total removal:               1.86  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.76  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       0.45            20.2         1000       
   Water     47.6            900          1000       
   Soil      51.9            1.8e+003     1000       
   Sediment  0.0934          8.1e+003     0          
     Persistence Time: 805 hr




                    

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