ChemSpider 2D Image | 2-Ethyl-5-methylfuran | C7H10O

2-Ethyl-5-methylfuran

  • Molecular FormulaC7H10O
  • Average mass110.154 Da
  • Monoisotopic mass110.073166 Da
  • ChemSpider ID66942

More details:






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

1703-52-2 [RN]
216-937-5 [EINECS]
2-ethyl-5-methyl-furan
2-Ethyl-5-methylfuran [ACD/IUPAC Name]
2-Ethyl-5-methylfuran [German] [ACD/IUPAC Name]
2-Éthyl-5-méthylfurane [French] [ACD/IUPAC Name]
Furan, 2-ethyl-5-methyl- [ACD/Index Name]
T5OJ B2 E1 [WLN]
[1703-52-2] [RN]
1-ethyl-5-methylfuran
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Validated by Experts, Validated by Users, Non-Validated, Removed by Users

  • Experimental Physico-chemical Properties
  • Miscellaneous
    • Chemical Class:

      A member of the class of furans that is furan in which the hydrogens at positions 2 and 5 are replaced by ethyl and methyl groups, respectively. ChEBI CHEBI:88617
  • Gas Chromatography
    • Retention Index (Kovats):

      831 (estimated with error: 68) NIST Spectra mainlib_249554, replib_122134, replib_285385
    • Retention Index (Normal Alkane):

      791 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.18 mm; Column length: 10 m; Column type: Capillary; CAS no: 1703522; Active phase: SLB-5MS; Carrier gas: Helium; Phase thickness: 0.18 um; Data type: Normal alkane RI; Authors: Risticevic, S.; Carasek, E.; Pawliszyn, J., Headspace solid-phase microextraction-gas chromatographic-time-of-flight mass spectrometric methodology for geographical origin verification of coffee, Anal. Chim. Acta, 617, 2008, 72-84., Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column type: Capillary; CAS no: 1703522; Active phase: SE-30; Data type: Normal alkane RI; Authors: Vinogradov, B.A., Production, composition, properties and application of essential oils, 2004.) NIST Spectra nist ri
      789 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Heat rate: 3 K/min; Start T: -30 C; CAS no: 1703522; Active phase: DB-1; Phase thickness: 1 um; Data type: Normal alkane RI; Authors: Barrefors, G.; Bjorkqvist, S.; Ramnas, O.; Petersson, G., Gas chromatographic separation of volatile furans from birchwood smoke, J. Chromatogr. A, 753, 1996, 151-155.) NIST Spectra nist ri
      799 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.18 mm; Column length: 10 m; Column type: Capillary; Heat rate: 10 K/min; Start T: 40 C; End T: 295 C; Start time: 1.5 min; CAS no: 1703522; Active phase: SLB-5MS; Carrier gas: Helium; Phase thickness: 0.18 um; Data type: Normal alkane RI; Authors: Risticevic, S.; Carasek, E.; Pawliszyn, J., Headspace solid-phase microextraction-gas chromatographic-time-of-flight mass spectrometric methodology for geographical origin verification of coffee, Anal. Chim. Acta, 617, 2008, 72-84.) NIST Spectra nist ri
      775 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 40 C; End T: 270 C; End time: 5 min; Start time: 4 min; CAS no: 1703522; Active phase: MDN-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: van Loon, W.A.M.; Linssen, J.P.H.; Legger, A.; Posthumus, M.A.; Voragen, A.G.J., Identification and olfactometry of French fries flavour extracted at mouth conditions, Food Chem., 90, 2005, 417-425.) NIST Spectra nist ri
      807.7 (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 ^ 5 0C/min -> 100 0C ^ 25 0C/min -> 240 0C; CAS no: 1703522; Active phase: DB-5; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Wahl, H.G.; Hoffmann, A.; Luft, D.; Liebich, H.M., Analysis of volatile organic compounds in human urine by headspace gas chromatography-mass spectrometry with a multipurpose sampler, J. Chromatogr. A, 847, 1999, 117-125.) NIST Spectra nist ri
      1034 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 35 C; End T: 320 C; End time: 45 min; Start time: 5 min; CAS no: 1703522; Active phase: FFAP; Carrier gas: N2; Phase thickness: 0.5 um; Data type: Normal alkane RI; Authors: Nebesny, E.; Budryn, G.; Kula, J.; Majda, T., The effect of roasting method on headspace composition of robusta coffee bean aroma, Eur. Food Res. Technol., 225, 2007, 9-19.) NIST Spectra nist ri
      1024 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column type: Capillary; CAS no: 1703522; Active phase: Carbowax 20M; Data type: Normal alkane RI; Authors: Vinogradov, B.A., Production, composition, properties and application of essential oils, 2004.) NIST Spectra nist ri
      1014 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 1 K/min; Start T: 40 C; End T: 175 C; Start time: 5 min; CAS no: 1703522; Active phase: Supelcowax-10; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Hsieh, T.C.Y.; Williams, S.S.; Vejaphan, W.; Meyers, S.P., Characterization of Volatile Components of Menhaden Fish (Brevoortia tyrannus) Oil, J. Amer. Oil Chem. Soc., 66(1), 1989, 114-117.) NIST Spectra nist ri
    • Retention Index (Linear):

      791 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 50 C; End T: 200 C; CAS no: 1703522; Active phase: OV-101; Carrier gas: He; Phase thickness: 0.5 um; Data type: Linear RI; Authors: Misharina, T.A.; Golovnya, R.V.; Beletsky, I.V., Sorption properties of heterocyclic compounds differing by heteroatom in capillary gas chromatography, Russ. Chem. Bull. (Engl. Transl.), 42(7), 1993, 1167-1170, In original 1224-1227.) NIST Spectra nist ri
      797 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 40 C; End T: 260 C; End time: 10 min; CAS no: 1703522; Active phase: HP-1; Carrier gas: He; Phase thickness: 1.05 um; Data type: Linear RI; Authors: Oh, Y.-C.; Hartman, T.G.; Ho, C.-T., Volatile compounds generated from the Maillard reaction of pro-gly, gly-pro, and a mixture of glycine and proline with glucose, J. Agric. Food Chem., 40, 1992, 1878-1880.) NIST Spectra nist ri
      802 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 40 C; End T: 280 C; Start time: 2 min; CAS no: 1703522; Active phase: CP Sil 8 CB; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Elmore, J.S.; Campo, M.M.; Enser, M.; Mottram, D.S., Effect of lipid composition on meat-like model systems containing cysteine, ribose, and polyunsaturated fatty acids, J. Agric. Food Chem., 50, 2002, 1126-1132., 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: 4 K/min; Start T: 40 C; End T: 260 C; End time: 10 min; Start time: 2 min; CAS no: 1703522; Active phase: DB-5; Phase thickness: 1 um; Data type: Linear RI; Authors: Methven L.; Tsoukka M.; Oruna-Concha M.J.; Parker J.K.; Mottram D.S., Influence of sulfur amino acids on the volatile and nonvolatile components of cooked salmon (Salmo salar), J. Agric. Food Chem., 55, 2007, 1427-1436.) NIST Spectra nist ri
      800 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Heat rate: 5 K/min; Start T: 40 C; End T: 260 C; Start time: 4 min; CAS no: 1703522; Active phase: DB-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Venskutonis, R.P.; Vasiliauskaite, R.; Galdikas, A.; Setkus, A., Use of GC-headspace and "electronic nose" for the detection of volatile compounds from glucose-glycine Maillard reaction, Food Control, 13, 2002, 13-21.) NIST Spectra nist ri
      803 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 60 C; End T: 250 C; End time: 10 min; Start time: 5 min; CAS no: 1703522; Active phase: BPX-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Ames, J.M.; Guy, R.C.E.; Kipping, G.J., Effect of pH, temperature, and moisture on the formation of volatile compounds in glycine/glucose model systems, J. Agric. Food Chem., 49, 2001, 4315-4323.) NIST Spectra nist ri
      801 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Description: 0C(5min) => 40C/min =>40C (2min) => 4C/min =>280C; CAS no: 1703522; Active phase: CP-Sil 8CB-MS; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Elmore, J.S.; Mottram, D.S.; Enser, M.; Wood, J.D., The effects of diet and breed on the volatile compounds of cooked lamb, Meat Sci., 55, 2000, 149-159.) NIST Spectra nist ri
      804 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Description: oC(5min) =>60C/min => 60C (5min) =>4C/min =>250C; CAS no: 1703522; Active phase: DB-5; Carrier gas: He; Phase thickness: 0.5 um; Data type: Linear RI; Authors: Parker, J.K.; Hassell, G.M.E.; Mottram, D.S.; Guy, R.C.E., Sensory and instrumental analyses of volatiles generated during the extrusion cooking of oat flours, J. Agric. Food Chem., 48, 2000, 3497-3506.) NIST Spectra nist ri
      810 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Description: 0C(5min) => 40C/min =>40C(2min) => 4C/min => 280C; CAS no: 1703522; Active phase: BPX-5; Carrier gas: He; Phase thickness: 0.5 um; Data type: Linear RI; Authors: Elmore, J.S.; Mottram, D.S.; Enser, M.; Wood, J.D., Effect of the polyunsaturated fatty acid composition of beef muscle on the profile of aroma volatiles, J. Agric. Food Chem., 47, 1999, 1619-1625.) NIST Spectra nist ri
      771 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Description: 5 0C (0.5 min) -> (1 min) 60 0C (5 min) ^ 4 0C/min -> 250 0C; CAS no: 1703522; Active phase: DB-5; Carrier gas: He; Phase thickness: 1.0 um; Data type: Linear RI; Authors: Beal, A.D.; Mottram, D.S., Compounds contributing to the characteristic aroma of malted barley, J. Agric. Food Chem., 42(12), 1994, 2880-2884.) NIST Spectra nist ri
      1028 (Program type: Complex; Column... (show more) class: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Description: 40C =>5C/min =>60C => 2.5C/min => 155C; CAS no: 1703522; Active phase: CP-Wax 52CB; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Alasalvar, C.; Shahidi, F.; Cadwallader, K.R., Comparison of natural and roasted Turkish Tombul hazelnut (Corylus avellana L.) volatiles and flavor by DHA/GC/MS and descriptive sensory analysis, J. Agric. Food Chem., 51, 2003, 5067-5072.) NIST Spectra nist ri
      1013 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.24 mm; Column length: 50 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 50 C; End T: 210 C; Start time: 5 min; CAS no: 1703522; Active phase: CP-WAX 57CB; Carrier gas: He; Data type: Linear RI; Authors: Baltes, W.; Mevissen, L., Model reactions on roast aroma formation. VI. Volatile reaction products from the reaction of phenylalanine with glucose during cooking and roasting, Z. Lebensm. Unters. Forsch., 187, 1988, 209-214., Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.3 mm; Column type: Capillary; CAS no: 1703522; Active phase: Carbowax; Data type: Linear RI; Authors: Baltes w.; Bochmann G., Model reactions on roast aroma formation. II. Mass spectrometric identification of furans and furanones from the reaction of serine and threonine with sucrose under the conditions of coffee roasting, Z. Lebensm. Unters. Forsch., 184, 1987, 179-186.) NIST Spectra nist ri
      1012 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.3 mm; Column type: Capillary; CAS no: 1703522; Active phase: Carbowax; Data type: Linear RI; Authors: Baltes w.; Bochmann G., Model reactions on roast aroma formation. II. Mass spectrometric identification of furans and furanones from the reaction of serine and threonine with sucrose under the conditions of coffee roasting, Z. Lebensm. Unters. Forsch., 184, 1987, 179-186.) NIST Spectra nist ri
      1014 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.3 mm; Column length: 50 m; Column type: Capillary; CAS no: 1703522; Active phase: Carbowax 20M; Data type: Linear RI; Authors: Baltes, W.; Bochmann, G., Model reactions on roast aroma formation. 1. Reaction of serine and threonine with sucrose under the conditions of coffee roasting and identification of new coffee aroma compounds, J. Agric. Food Chem., 35(3), 1987, 340-346., Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.3 mm; Column type: Capillary; CAS no: 1703522; Active phase: Carbowax; Data type: Linear RI; Authors: Baltes w.; Bochmann G., Model reactions on roast aroma formation. II. Mass spectrometric identification of furans and furanones from the reaction of serine and threonine with sucrose under the conditions of coffee roasting, Z. Lebensm. Unters. Forsch., 184, 1987, 179-186.) NIST Spectra nist ri
      1015 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.3 mm; Column type: Capillary; CAS no: 1703522; Active phase: Carbowax; Data type: Linear RI; Authors: Baltes w.; Bochmann G., Model reactions on roast aroma formation. II. Mass spectrometric identification of furans and furanones from the reaction of serine and threonine with sucrose under the conditions of coffee roasting, Z. Lebensm. Unters. Forsch., 184, 1987, 179-186.) NIST Spectra nist ri
      1018 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.3 mm; Column type: Capillary; CAS no: 1703522; Active phase: Carbowax; Data type: Linear RI; Authors: Baltes w.; Bochmann G., Model reactions on roast aroma formation. II. Mass spectrometric identification of furans and furanones from the reaction of serine and threonine with sucrose under the conditions of coffee roasting, Z. Lebensm. Unters. Forsch., 184, 1987, 179-186.) NIST Spectra nist ri

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

Density: 0.9±0.1 g/cm3
Boiling Point: 119.1±9.0 °C at 760 mmHg
Vapour Pressure: 19.3±0.2 mmHg at 25°C
Enthalpy of Vaporization: 34.3±3.0 kJ/mol
Flash Point: 15.1±5.6 °C
Index of Refraction: 1.455
Molar Refractivity: 32.9±0.3 cm3
#H bond acceptors: 1
#H bond donors: 0
#Freely Rotating Bonds: 1
#Rule of 5 Violations: 0
ACD/LogP: 2.83
ACD/LogD (pH 5.5): 2.69
ACD/BCF (pH 5.5): 65.39
ACD/KOC (pH 5.5): 693.66
ACD/LogD (pH 7.4): 2.69
ACD/BCF (pH 7.4): 65.39
ACD/KOC (pH 7.4): 693.66
Polar Surface Area: 13 Å2
Polarizability: 13.1±0.5 10-24cm3
Surface Tension: 26.6±3.0 dyne/cm
Molar Volume: 121.3±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) =  2.95

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  131.74  (Adapted Stein & Brown method)
    Melting Pt (deg C):  -36.49  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  16.7  (Mean VP of Antoine & Grain methods)
    BP  (exp database):  118.5 deg C

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  329.7
       log Kow used: 2.95 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  533.09 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   8.69E-003  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  7.342E-003 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  2.95  (KowWin est)
  Log Kaw used:  -0.449  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  3.399
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.8044
   Biowin2 (Non-Linear Model)     :   0.9308
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.8060  (weeks       )
   Biowin4 (Primary Survey Model) :   3.5517  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.3870
   Biowin6 (MITI Non-Linear Model):   0.4472
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.0721
 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):  2.08E+003 Pa (15.6 mm Hg)
  Log Koa (Koawin est  ): 3.399
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  1.44E-009 
       Octanol/air (Koa) model:  6.15E-010 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  5.21E-008 
       Mackay model           :  1.15E-007 
       Octanol/air (Koa) model:  4.92E-008 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 130.0489 E-12 cm3/molecule-sec
      Half-Life =     0.082 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     0.987 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Reaction With Nitrate Radicals May Be Important!
   Fraction sorbed to airborne particulates (phi): 8.37E-008 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  454.7
      Log Koc:  2.658 

 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 = 1.570 (BCF = 37.18)
       log Kow used: 2.95 (estimated)

 Volatilization from Water:
    Henry LC:  0.00869 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:      1.142  hours
    Half-Life from Model Lake :      100.5  hours   (4.186 days)

 Removal In Wastewater Treatment:
    Total removal:              77.79  percent
    Total biodegradation:        0.05  percent
    Total sludge adsorption:     2.95  percent
    Total to Air:               74.80  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       1.55            1.97         1000       
   Water     46.7            360          1000       
   Soil      51.1            720          1000       
   Sediment  0.711           3.24e+003    0          
     Persistence Time: 134 hr




                    

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