Pentanoic acid, 4-methyl-, ethyl ester

• Formula: C₈H₁₆O₂
• Molecular weight: 144.2114
• IUPAC Standard InChI: InChI=1S/C8H16O2/c1-4-10-8(9)6-5-7(2)3/h7H,4-6H2,1-3H3 Copy

  
• IUPAC Standard InChIKey: OFQRUTMGVBMTFQ-UHFFFAOYSA-N Copy
• CAS Registry Number: 25415-67-2
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
  The 3d structure may be viewed using Java or Javascript.
• Other names: Valeric acid, 4-methyl-, ethyl ester; Ethyl isohexanoate; Ethyl 4-methylpentanoate; Ethyl isocaproate; Ethyl 4-methylvalerate; 4-Methylvaleric acid, ethyl ester
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• Information on this page:
  • Phase change data
  • Mass spectrum (electron ionization)
  • Gas Chromatography
  • References
  • Notes
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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:
AC - William E. Acree, Jr., James S. Chickos

Enthalpy of vaporization

Antoine Equation Parameters

log₁₀(P) = A − (B / (T + C))
    P = vapor pressure (atm)
    T = temperature (K)

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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, non-polar column, custom temperature program

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

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

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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

Go To: Top, Phase change data, Mass spectrum (electron ionization), Gas Chromatography, Notes

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

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2 . [all data]

Stull, 1947
Stull, Daniel R., Vapor Pressure of Pure Substances. Organic and Inorganic Compounds, Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022 . [all data]

Komárek, Hornová, et al., 1982
Komárek, K.; Hornová, L.; Churácek, J., Glass capillary gas chromatography of homologous series of esters. II. Separation of homologous series of halogenoethyl esters of aliphatic monocarboxylic acids on OV-101, J. Chromatogr., 1982, 252, 293-296, https://doi.org/10.1016/S0021-9673(01)88420-X . [all data]

Ashes and Haken, 1974
Ashes, J.R.; Haken, J.K., Gas chromatography of homologous esters. VI. Structure-retention increments of aliphatic esters, J. Chromatogr., 1974, 101, 1, 103-123, https://doi.org/10.1016/S0021-9673(01)94737-5 . [all data]

Germaine and Haken, 1969
Germaine, R.W.; Haken, J.K., Gas chromatography of homologous esters. Part 1. Simple aliphatic esters, J. Chromatogr., 1969, 43, 33-42, https://doi.org/10.1016/S0021-9673(00)99162-3 . [all data]

Chretien and Dubois, 1978
Chretien, J.R.; Dubois, J-E., Topological Analysis: A Technique for the Physico-Chemical Exploitation of Retention Data in Gas-Liquid Chromatography, J. Chromatogr., 1978, 158, 43-56, https://doi.org/10.1016/S0021-9673(00)89954-9 . [all data]

Campo, Ferreira, et al., 2006
Campo, E.; Ferreira, V.; López, R.; Escudero, A.; Cacho, J., Identification of three novel compounds in wine by means of a laboratory-constructed multidimensional gas chromatographic system, J. Chromatogr. A, 2006, 1122, 1-2, 202-208, https://doi.org/10.1016/j.chroma.2006.04.048 . [all data]

Escudero, Campo, et al., 2007
Escudero, A.; Campo, E.; Fariña, L.; Cacho, J.; Ferreira, V., Analytical Characterization of the Aroma of Five Premium Red Wines. Insights into the Role of Odor Families and the Concept of Fruitiness of Wines, J. Agric. Food Chem., 2007, 55, 11, 4501-4510, https://doi.org/10.1021/jf0636418 . [all data]

Fritsch and Schieberle, 2005
Fritsch, H.T.; Schieberle, P., Identification based on quantitative measurements and aroma recombination of the character impact odorants in a Bavarian Pilsner-type beer, J. Agric. Food Chem., 2005, 53, 19, 7544-7551, https://doi.org/10.1021/jf051167k . [all data]

Bianchi, Careri, et al., 2007
Bianchi, F.; Careri, M.; Mangia, A.; Musci, M., Retention indices in the analysis of food aroma volatile compounds in temperature-programmed gas chromatography: Database creation and evaluation of precision and robustness, J. Sep. Sci., 2007, 39, 4, 563-572, https://doi.org/10.1002/jssc.200600393 . [all data]

Setkova, Risticevic, et al., 2007
Setkova, L.; Risticevic, S.; Pawliszyn, J., Rapid headspace solid-phase microextraction-gas chromatographic?time-of-flight mass spectrometric method for qualitative profiling of ice wine volatile fraction II: Classification of Canadian and Czech ice wines using statistical evaluation of the data, J. Chromatogr. A, 2007, 1147, 2, 224-240, https://doi.org/10.1016/j.chroma.2007.02.052 . [all data]

Fan and Qian, 2005
Fan, W.; Qian, M.C., Headspace Solid Phase Microextraction and Gas Chromatography-Olfactometry Dilution Analysis of Young and Aged Chinese Yanghe Daqu Liquors, J. Agric. Food Chem., 2005, 53, 20, 7931-7938, https://doi.org/10.1021/jf051011k . [all data]

Ong and Acree, 1999
Ong, P.K.C.; Acree, T.E., Similarities in the aroma chemistry of Gewürztraminer variety wines and lychee (Litchi chinesis Sonn.) fruit, J. Agric. Food Chem., 1999, 47, 2, 665-670, https://doi.org/10.1021/jf980452j . [all data]

Ong and Acree, 1998
Ong, P.K.C.; Acree, T.E., Gas chromatography/olfactory analysis of lychee (Litchi chinesis Sonn.), J. Agric. Food Chem., 1998, 46, 6, 2282-2286, https://doi.org/10.1021/jf9801318 . [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]

Robinson, Adams, et al., 2012
Robinson, A.L.; Adams, D.O.; Boss, P.K.; Heymann, H.; Solomon, P.S.; Trengove, R.D., Influence of geographic origine on the sensory characteristics and wine composition of Vitus viniferas cv. Cabernet Sauvignon wines from Australia (Supplemental data), Am. J. Enol. Vitic., 2012, 64, 4, 467-476, https://doi.org/10.5344/ajev.2012.12023 . [all data]

San-Juan, Petka, et al., 2010
San-Juan, F.; Petka, J.; Cacho, J.; Ferreira, V.; Escudero, A., Producing headspace extracts for the gas chromatography - olphactometric evaluation of wine aroma, Food Chemistry, 2010, 123, 1, 188-195, https://doi.org/10.1016/j.foodchem.2010.03.129 . [all data]

Liu, Liang, et al., 2007
Liu, F.; Liang, Y.; Cao, C.; Zhou, N., QSPR study of GC retention indices for saturated esters on seven stationary phases based on novel topological indices, Talanta, 2007, 72, 4, 1307-1315, https://doi.org/10.1016/j.talanta.2007.01.038 . [all data]

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

Kishimoto, Wanikawa, et al., 2006
Kishimoto, T.; Wanikawa, A.; Kono, K.; Shibata, K., Comparison of the Odor-Active Compounds in Unhopped Beer and Beers Hopped with Different Hop Varieties, J. Agric. Food Chem., 2006, 54, 23, 8855-8861, https://doi.org/10.1021/jf061342c . [all data]

Isogai, Utsunomiya, et al., 2005
Isogai, A.; Utsunomiya, H.; Kanda, R.; Iwata, H., Changes in the Aroma Compounds of Sake during Aging, J. Agric. Food Chem., 2005, 53, 10, 4118-4123, https://doi.org/10.1021/jf047933p . [all data]

Delabre and Bendall, 9999
Delabre, M.-L.; Bendall, J.F., Flavour ingredients from fermented dairy streams, Expression of Multidisciplinary Flavour Sci., 9999, 375-378. [all data]

Ferreira, Juan, et al., 2009
Ferreira, V.; Juan, F.S.; Escudero, A.; Cullere, L.; Fernandez-Zurbano, P.; Saenz-Navajas, M.P.; Cacho, J., Modeling quality of premium Spanish red wines from gas chromatography-olfactometry data, J. Agr. Food. Chem., 2009, 57, 16, 7490-7498, https://doi.org/10.1021/jf9006483 . [all data]

Berard, Bianchi, et al., 2007
Berard, J.; Bianchi, F.; Careri, M.; Chatel, A.; Mangia, A.; Musci, M., Characterization of the volatile fraction and of free fatty acids of Fontina Valle d'Aosta, a protected designation of origin Italian cheese, Food Chem., 2007, 105, 1, 293-300, https://doi.org/10.1016/j.foodchem.2006.11.041 . [all data]

Notes

Go To: Top, Phase change data, Mass spectrum (electron ionization), Gas Chromatography, References

• Symbols used in this document:
  

  ΔvapH

  Enthalpy of vaporization

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