Butanoic acid, 3-methyl-

• Formula: C₅H₁₀O₂
• Molecular weight: 102.1317
• IUPAC Standard InChI: InChI=1S/C5H10O2/c1-4(2)3-5(6)7/h4H,3H2,1-2H3,(H,6,7) Copy

  
• IUPAC Standard InChIKey: GWYFCOCPABKNJV-UHFFFAOYSA-N Copy
• CAS Registry Number: 503-74-2
• 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: Isovaleric acid; β-Methylbutyric acid; Acetic acid, isopropyl-; Delphinic acid; Isopentanoic acid; Isopropylacetic acid; 3-Methylbutanoic acid; 3-Methylbutyric acid; iso-C4H9COOH; Butyric acid, 3-methyl-; Isovalerianic acid; Kyselina isovalerova; 3-Methyl-n-butyric acid; NSC 62783; Isobutylformic acid; 3-methylbutanoic acid (isovaleric acid); Methylbutanoic acid
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Van Den Dool and Kratz RI, non-polar column, custom temperature program
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Phase change data
  • Reaction thermochemistry data
  • Henry's Law data
  • Gas phase ion energetics data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Gas Chromatography
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
• Options:
  • Switch to SI units

Data at NIST subscription sites:

• NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data)

NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.

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

Go To: Top, References, Notes

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

References

Go To: Top, Van Den Dool and Kratz RI, non-polar column, custom temperature program, Notes

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

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]

Eyres, Marriott, et al., 2007
Eyres, G.T.; Marriott, P.J.; Dufour, J.-P., Comparison of Odor-Active Compounds in the Spicy Fraction of Hop (Humulus lupulus L.) Essential Oil from Four Different Varieties, J. Agric. Food Chem., 2007, 55, 15, 6252-6261, https://doi.org/10.1021/jf070739t . [all data]

Tret'yakov, 2007
Tret'yakov, K.V., Retention Data. NIST Mass Spectrometry Data Center., NIST Mass Spectrometry Data Center, 2007. [all data]

Schuh and Schieberle, 2006
Schuh, C.; Schieberle, P., Characterization of the Key Aroma Compounds in the Beverage Prepared from Darjeeling Black Tea: Quantitative Differences between Tea Leaves and Infusion, J. Agric. Food Chem., 2006, 54, 3, 916-924, https://doi.org/10.1021/jf052495n . [all data]

Bonaiti, Irlinger, et al., 2005
Bonaiti, C.; Irlinger, F.; Spinnler, H.E.; Engel, E., An iterative sensory procedure to select odor-active associations in complex consortia of microorganisms: application to the construction of a cheese model, J. Dairy Sci., 2005, 88, 5, 1671-1684, https://doi.org/10.3168/jds.S0022-0302(05)72839-3 . [all data]

Campo, Ferreira, et al., 2005
Campo, E.; Ferreira, V.; Escudero, A.; Cacho, J., Prediction of the wine sensory properties related to grape variety from dynamic-headspace gas chromatography-olfactometry data, J. Agric. Food Chem., 2005, 53, 14, 5682-5690, https://doi.org/10.1021/jf047870a . [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]

Wang, Finn, et al., 2005
Wang, Y.; Finn, C.; Qian, M.C., Impact of Growing Environment on Chickasaw Blackberry ( Rubus L.) Aroma Evaluated by Gas Chromatography Olfactometry Dilution Analysis, J. Agric. Food Chem., 2005, 53, 9, 3563-3571, https://doi.org/10.1021/jf048102m . [all data]

Jezussek, Juliano, et al., 2002
Jezussek, M.; Juliano, B.O.; Schieberle, P., Comparison of key aroma compounds in cooked brown rice varieties based on aroma extract dilution analysis, J. Agric. Food Chem., 2002, 50, 5, 1101-1105, https://doi.org/10.1021/jf0108720 . [all data]

Eri, Khoo, et al., 2000
Eri, S.; Khoo, B.K.; Lech, J.; Hartman, T.G., Direct thermal desorption-gas chromatography and gas chromatography-mass spectrometry profiling of hop (Humulus lupulus L.) essential oils in support of varietal characterization, J. Agric. Food Chem., 2000, 48, 4, 1140-1149, https://doi.org/10.1021/jf9911850 . [all data]

Munk, Munch, et al., 2000
Munk, S.; Munch, P.; Stahnke, L.; Adler-Nissen., J.; Schieberle, P., Primary odorants of laundry soiled with sweat/sebum: influence of lipase on the odor profile, Journal of Surfactants and Detergents, 2000, 3, 4, 505-515, https://doi.org/10.1007/s11743-000-0150-z . [all data]

Tairu, Hofmann, et al., 2000
Tairu, A.O.; Hofmann, T.; Schieberle, P., Studies on the key odorants formed by roasting of wild mango seeds (Irvingia gabonensis), J. Agric. Food Chem., 2000, 48, 6, 2391-2394, https://doi.org/10.1021/jf990765u . [all data]

Zimmermann and Schieberle, 2000
Zimmermann, M.; Schieberle, P., Important odorants of sweet bell pepper powder (Capsicum annuum cv. annuum): differences between samples of Hungarian and Morrocan origin, Eur. Food Res. Technol., 2000, 211, 3, 175-180, https://doi.org/10.1007/s002170050019 . [all data]

Buettner and Schieberle, 1999
Buettner, A.; Schieberle, P., Characterization of the most odor-active volatiles in fresh, hand squeezed juice of grapefruit (Citrus paradise Macfayden), J. Agric. Food Chem., 1999, 47, 12, 5189-5193, https://doi.org/10.1021/jf990071l . [all data]

Derail, Hofmann, et al., 1999
Derail, C.; Hofmann, T.; Schieberle, P., Differences in key odorants of handmade juice of yellow-flesh peaches (Prunus persica L.) induced by the workup procedure, J. Agric. Food Chem., 1999, 47, 11, 4742-4745, https://doi.org/10.1021/jf990459g . [all data]

Fickert and Schieberle, 1998
Fickert, B.; Schieberle, P., Identification of the key odorants in barley malt (caramalt) using GC/MS techniques and odour dilution analyses, Nahrung, 1998, 42, 6, 371-375, https://doi.org/10.1002/(SICI)1521-3803(199812)42:06<371::AID-FOOD371>3.0.CO;2-V . [all data]

Hinterholzer, Lemos, et al., 1998
Hinterholzer, A.; Lemos, T.; Schieberle, P., Identification of the key odorants in raw French beans and changes during cooking, Z. Lebensm. Unters. Forsch. A, 1998, 207, 3, 219-222, https://doi.org/10.1007/s002170050322 . [all data]

Münch, Hofmann, et al., 1997
Münch, P.; Hofmann, T.; Schieberle, P., Comparison of key odorants generated by thermal treatment of commercial and self-prepared yeast extracts: influence of the amino acid composition on odorant formation, J. Agric. Food Chem., 1997, 45, 4, 1338-1344, https://doi.org/10.1021/jf960658p . [all data]

Notes

Go To: Top, Van Den Dool and Kratz RI, non-polar column, custom temperature program, References

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
• The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
• Customer support for NIST Standard Reference Data products.