ChemSpider 2D Image | (1R,2S)-1-Ethyl-2-methylcyclohexane | C9H18

(1R,2S)-1-Ethyl-2-methylcyclohexane

  • Molecular FormulaC9H18
  • Average mass126.239 Da
  • Monoisotopic mass126.140854 Da
  • ChemSpider ID4937715
  • defined stereocentres - 2 of 2 defined stereocentres


More details:






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

(1R,2S)-1-Ethyl-2-methylcyclohexan [German] [ACD/IUPAC Name]
(1R,2S)-1-Ethyl-2-methylcyclohexane [ACD/IUPAC Name]
(1R,2S)-1-Éthyl-2-méthylcyclohexane [French] [ACD/IUPAC Name]
Cyclohexane, 1-ethyl-2-methyl-, (1R,2S)- [ACD/Index Name]
130365-49-0 [RN]
1-Methyl-cis-2-ethylcyclohexane
4923-77-7 [RN]
Cis-1-ethyl-2-methyl cyclohexane
Cyclohexane, 1-ethyl-2-methyl-, cis-

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

  • Gas Chromatography
    • Retention Index (Kovats):

      921 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.25 mm; Column length: 110 m; Column type: Capillary; Heat rate: 1 K/min; Start T: 35 C; End T: 200 C; CAS no: 4923777; Active phase: OV-101; Carrier gas: He; Phase thickness: 0.20 um; Data type: Kovats RI; Authors: Hayes, P.C., Jr.; Pitzer, E.W., Characterizing petroleum- and shale-derived jet fuel distillates via temperature-programmed Kovats indices, J. Chromatogr., 253, 1982, 179-198.) NIST Spectra nist ri
      923 (Program type: Isothermal; Col... (show more) umn class: Semi-standard non-polar; Column type: Capillary; Start T: 35 C; CAS no: 4923777; Active phase: Vacuum Grease Oil (VM-4); Data type: Kovats RI; Authors: Sidorov, R.I.; Petrova, V.I.; Ivanova, M.P., Qualitative analysis of wide-boiling fraction C5-C10 with capillary chromatography, in Processes in chromatographic columns. Vol.17, 1972, 14-25.) NIST Spectra nist ri
      928 (Program type: Isothermal; Col... (show more) umn class: Semi-standard non-polar; Column type: Capillary; Start T: 45 C; CAS no: 4923777; Active phase: Vacuum Grease Oil (VM-4); Data type: Kovats RI; Authors: Sidorov, R.I.; Petrova, V.I.; Ivanova, M.P., Qualitative analysis of wide-boiling fraction C5-C10 with capillary chromatography, in Processes in chromatographic columns. Vol.17, 1972, 14-25.) NIST Spectra nist ri
      930 (Program type: Isothermal; Col... (show more) umn class: Semi-standard non-polar; Column type: Capillary; Start T: 50 C; CAS no: 4923777; Active phase: Vacuum Grease Oil (VM-4); Data type: Kovats RI; Authors: Sidorov, R.I.; Petrova, V.I.; Ivanova, M.P., Qualitative analysis of wide-boiling fraction C5-C10 with capillary chromatography, in Processes in chromatographic columns. Vol.17, 1972, 14-25.) NIST Spectra nist ri
      933 (Program type: Isothermal; Col... (show more) umn class: Semi-standard non-polar; Column type: Capillary; Start T: 58 C; CAS no: 4923777; Active phase: Vacuum Grease Oil (VM-4); Data type: Kovats RI; Authors: Sidorov, R.I.; Petrova, V.I.; Ivanova, M.P., Qualitative analysis of wide-boiling fraction C5-C10 with capillary chromatography, in Processes in chromatographic columns. Vol.17, 1972, 14-25.) NIST Spectra nist ri
      937 (Program type: Isothermal; Col... (show more) umn class: Semi-standard non-polar; Column type: Capillary; Start T: 68 C; CAS no: 4923777; Active phase: Vacuum Grease Oil (VM-4); Data type: Kovats RI; Authors: Sidorov, R.I.; Petrova, V.I.; Ivanova, M.P., Qualitative analysis of wide-boiling fraction C5-C10 with capillary chromatography, in Processes in chromatographic columns. Vol.17, 1972, 14-25.) NIST Spectra nist ri
      939 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 50 m; Column type: Capillary; Heat rate: 1 K/min; Start T: 60 C; CAS no: 4923777; Active phase: Apiezon L; Carrier gas: N2; Data type: Kovats RI; Authors: Louis, R., Kovats-index-tafeln zur gaschromatographischen analyse von kohlenwasserstoffgemischen, Erdoel Kohle Erdgas Petrochem., 24(2), 1971, 88-94.) NIST Spectra nist ri
      905 (Program type: Isothermal; Col... (show more) umn class: Semi-standard non-polar; Column type: Packed; Start T: 35 C; CAS no: 4923777; Active phase: Vacuum Grease Oil (VM-4); Data type: Kovats RI; Authors: Sidorov, R.I.; Ivanova, M.P.; Petrova, V.I., Temperature dependence of cycloalkane's retention and its using in identification of structure, Gazovaya Khromatografiya, 15, 1971, 18-26.) NIST Spectra nist ri
    • Retention Index (Normal Alkane):

      921.1 (Program type: Complex; Column... (show more) class: Standard non-polar; Column diameter: 0.1 mm; Column length: 20 m; Column type: Capillary; Description: 40C(0.4min) => 10C/min =>110C =>20C/min =>260C (1min); CAS no: 4923777; Active phase: DB-1; Carrier gas: He; Phase thickness: 0.4 um; Data type: Normal alkane RI; Authors: LECO Corporation, Rapid qualitative GC/TOFMS analysis of a petroleum refinery reformate standard, 2003.) NIST Spectra nist ri
      925 (Program type: Isothermal; Col... (show more) umn class: Standard non-polar; Column type: Capillary; Start T: 70 C; CAS no: 4923777; Active phase: OV-101; Data type: Normal alkane RI; Authors: Wu, J.; Lu, W., Kovats indices of C4-C10 hydrocarbons in apolar quartz capillary OV-101, Chin. J. Chromatogr., 1(1), 1984, 11-17.) NIST Spectra nist ri
    • Retention Index (Linear):

      924.8 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.22 mm; Column length: 80 m; Column type: Capillary; Heat rate: 1 K/min; Start T: 30 C; End T: 130 C; CAS no: 4923777; Active phase: OV-101; Carrier gas: N2; Data type: Linear RI; Authors: Yin, C.; Liu, W.; Li, Z.; Pan, Z.; Lin, T.; Zhang, M., Chemometrics to chemical modeling: structural coding in hydrocarbons and retention indices of gas chromatography, J. Sep. Sci., 24, 2001, 213-220.) NIST Spectra nist ri
      921 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.25 mm; Column length: 108 m; Column type: Capillary; Heat rate: 1 K/min; Start T: 35 C; End T: 200 C; CAS no: 4923777; Active phase: OV-101; Phase thickness: 0.2 um; Data type: Linear RI; Authors: Hayes, P.C., Jr.; Pitzer, E.W., Kovats indices as a tool in characterizing hydrocarbon fuels in temperature programmed glass capillary gas chromatography. Part 1. Qualitative identification, Inhouse rpt. for Air Force Wright Aeronautical Labs., Air Force Wright Aeronautical Labs., Wright-Patterson AFB, Ohio, 1981, 75.) NIST Spectra nist ri
      915.2 (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: 2.5 K/min; Start T: 50 C; End T: 200 C; CAS no: 4923777; Active phase: DB-5; Carrier gas: He; Phase thickness: 1 um; Data type: Linear RI; Authors: Xu, X.; van Stee, L.L.P.; Williams, J.; Beens, J.; Adahchour, M.; Vreuls, R.J.J.; Brinkman, U.A.Th.; Lelieveld, J., Comprehensive two-dimensional gas chromatography (GC*GC) measurements of volatile organic compounds in the atmosphere, Atmos. Chem. Phys., 3, 2003, 665-682.) NIST Spectra nist ri

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

Density: 0.8±0.1 g/cm3
Boiling Point: 156.0±0.0 °C at 760 mmHg
Vapour Pressure: 3.8±0.1 mmHg at 25°C
Enthalpy of Vaporization: 37.7±0.8 kJ/mol
Flash Point: 31.9±11.7 °C
Index of Refraction: 1.422
Molar Refractivity: 41.7±0.3 cm3
#H bond acceptors: 0
#H bond donors: 0
#Freely Rotating Bonds: 1
#Rule of 5 Violations: 0
ACD/LogP: 4.90
ACD/LogD (pH 5.5): 4.44
ACD/BCF (pH 5.5): 1397.43
ACD/KOC (pH 5.5): 6209.06
ACD/LogD (pH 7.4): 4.44
ACD/BCF (pH 7.4): 1397.43
ACD/KOC (pH 7.4): 6209.06
Polar Surface Area: 0 Å2
Polarizability: 16.5±0.5 10-24cm3
Surface Tension: 24.2±3.0 dyne/cm
Molar Volume: 164.0±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) =  4.50

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  146.15  (Adapted Stein & Brown method)
    Melting Pt (deg C):  -53.58  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  4.76  (Mean VP of Antoine & Grain methods)
    BP  (exp database):  151.7 deg C

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  3.949
       log Kow used: 4.50 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  1.9462 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   5.97E-001  atm-m3/mole
   Group Method:   7.92E-001  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  2.002E-001 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  4.50  (KowWin est)
  Log Kaw used:  1.388  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  3.112
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.6874
   Biowin2 (Non-Linear Model)     :   0.7714
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.9202  (weeks       )
   Biowin4 (Primary Survey Model) :   3.6656  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.4906
   Biowin6 (MITI Non-Linear Model):   0.5092
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.3018
 Ready Biodegradability Prediction:   NO

 Hydrocarbon Biodegradation (BioHCwin v1.01):
     LOG BioHC Half-Life (days) :   0.7719
     BioHC Half-Life (days)     :   5.9144

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
  Vapor pressure (liquid/subcooled):  583 Pa (4.37 mm Hg)
  Log Koa (Koawin est  ): 3.112
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  5.15E-009 
       Octanol/air (Koa) model:  3.18E-010 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  1.86E-007 
       Mackay model           :  4.12E-007 
       Octanol/air (Koa) model:  2.54E-008 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  13.6807 E-12 cm3/molecule-sec
      Half-Life =     0.782 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     9.382 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 2.99E-007 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  856.1
      Log Koc:  2.933 

 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 = 2.766 (BCF = 584.1)
       log Kow used: 4.50 (estimated)

 Volatilization from Water:
    Henry LC:  0.597 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:      1.148  hours
    Half-Life from Model Lake :      106.7  hours   (4.447 days)

 Removal In Wastewater Treatment (recommended maximum 95%):
    Total removal:              99.68  percent
    Total biodegradation:        0.11  percent
    Total sludge adsorption:    33.55  percent
    Total to Air:               66.03  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       11.9            18.8         1000       
   Water     43.7            360          1000       
   Soil      27.6            720          1000       
   Sediment  16.7            3.24e+003    0          
     Persistence Time: 140 hr




                    

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