Hexanal, 2-ethyl-

• Formula: C₈H₁₆O
• Molecular weight: 128.2120
• IUPAC Standard InChI: InChI=1S/C8H16O/c1-3-5-6-8(4-2)7-9/h7-8H,3-6H2,1-2H3 Copy

  
• IUPAC Standard InChIKey: LGYNIFWIKSEESD-UHFFFAOYSA-N Copy
• CAS Registry Number: 123-05-7
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Other names: α-Ethylcaproaldehyde; Butylethylacetaldehyde; Ethylbutylacetaldehyde; 2-Ethylhexaldehyde; 2-Ethylhexanal; 2-Ethylhexylaldehyde; 3-Formylheptane; 2-Ethylcaproaldehyde; α-Ethylhexanal; 2-Ethylhexan-1-al; NSC 42871
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• Information on this page:
  • Condensed phase thermochemistry data
  • Phase change data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Gas Chromatography
  • References
  • Notes
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Condensed phase thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Phase change data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
BS - Robert L. Brown and Stephen E. Stein

Reduced pressure boiling point

IR Spectrum

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Gas Phase Spectrum

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Additional Data

Mass spectrum (electron ionization)

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Additional Data

Gas Chromatography

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Kovats' RI, non-polar column, isothermal

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Kovats' RI, polar column, isothermal

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Van Den Dool and Kratz RI, non-polar column, temperature ramp

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Van Den Dool and Kratz RI, non-polar column, custom temperature program

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Normal alkane RI, non-polar column, isothermal

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Normal alkane RI, non-polar column, temperature ramp

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Normal alkane RI, non-polar column, custom temperature program

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Normal alkane RI, polar column, temperature ramp

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Normal alkane RI, polar column, custom temperature program

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References

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Tjebbes, 1960
Tjebbes, J., Heats of combustion of butannal and some related compounds, Acta Chem. Scand., 1960, 14, 180-188. [all data]

Komarewsky and Kritchevsky, 1943
Komarewsky, V.I.; Kritchevsky, T.H., Synthesis of Olefin Hydrocarbons by Catalytic Condensation and Dehydration of Aliphatic Aldehydes, J. Am. Chem. Soc., 1943, 65, 547-8. [all data]

Powell and Baldwin, 1936
Powell, S.G.; Baldwin, M.M., The Condensation of 2-Butanone with Aldehydes of the Type RR'CHCHO, J. Am. Chem. Soc., 1936, 58, 1871. [all data]

Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc., Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]

Héberger and Görgényi, 1999
Héberger, K.; Görgényi, M., Principal component analysis of Kováts indices for carbonyl compounds in capillary gas chromatography, J. Chromatogr., 1999, 845, 1-2, 21-31, https://doi.org/10.1016/S0021-9673(99)00323-4 . [all data]

Bogoslovsky, Anvaer, et al., 1978
Bogoslovsky, Yu.N.; Anvaer, B.I.; Vigdergauz, M.S., Chromatographic constants in gas chromatography (in Russian), Standards Publ. House, Moscow, 1978, 192. [all data]

Hierro, de la Hoz, et al., 2004
Hierro, E.; de la Hoz, L.; Ordóñez, J.A., Headspace volatile compounds from salted and occasionally smoked dried meats (cecinas) as affected by animal species, Food Chem., 2004, 85, 4, 649-657, https://doi.org/10.1016/j.foodchem.2003.07.001 . [all data]

Xu, van Stee, et al., 2003
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., 2003, 3, 3, 665-682, https://doi.org/10.5194/acp-3-665-2003 . [all data]

Elmore, Mottram, et al., 1997
Elmore, J.S.; Mottram, D.S.; Enser, M.; Wood, J.D., Novel thiazoles and 3-thiazolines in cooked beef aroma, J. Agric. Food Chem., 1997, 45, 9, 3603-3607, https://doi.org/10.1021/jf970066m . [all data]

Amboni, Junkes, et al., 2002
Amboni, R.D.DeM.C.; Junkes, B. daS.; Yunes, R.A.; Heinzen, V.E.F., Quantitative structure-property relationships study of chromatographic retention indices and normal boiling points for oxo compounds using the semi-empirical topological method, J. Mol. Struct. (Theochem), 2002, 586, 1-3, 71-80, https://doi.org/10.1016/S0166-1280(02)00062-3 . [all data]

Anker, Jurs, et al., 1990
Anker, L.S.; Jurs, P.C.; Edwards, P.A., Quantitative structure-retention relationship studies of odor-active aliphatic compounds with oxygen-containing functional groups, Anal. Chem., 1990, 62, 24, 2676-2684, https://doi.org/10.1021/ac00223a006 . [all data]

Junkes, Amboni, et al., 2004
Junkes, B.S.; Amboni, R.D.M.C.; Yunes, R.A.; Heinzen, V.E.F., Application of the semi-empirical topological index in quantitative structure-chromatographic retention relationship (QSRR) studies of aliphatic ketones and aldehydes on stationary phases of different polarity, J. Braz. Chem. Soc., 2004, 15, 2, 183-189, https://doi.org/10.1590/S0103-50532004000200005 . [all data]

Vinogradov, 2004
Vinogradov, B.A., Production, composition, properties and application of essential oils, 2004, retrieved from http://viness.narod.ru. [all data]

Junkes, Castanho, et al., 2003
Junkes, B.S.; Castanho, R.D.M.; Amboni, C.; Yunes, R.A.; Heinzen, V.E.F., Semiempirical Topological Index: A Novel Molecular Descriptor for Quantitative Structure-Retention Relationship Studies, Internet Electronic Journal of Molecular Design, 2003, 2, 1, 33-49. [all data]

Waggott and Davies, 1984
Waggott, A.; Davies, I.W., Identification of organic pollutants using linear temperature programmed retention indices (LTPRIs) - Part II, 1984, retrieved from http://dwi.defra.gov.uk/research/completed-research/reports/dwi0383.pdf. [all data]

Notes

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• Symbols used in this document:
  

  Tboil	Boiling point
  ΔcH°liquid	Enthalpy of combustion of liquid at standard conditions
  ΔfH°liquid	Enthalpy of formation of liquid at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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