Propanoic acid, 2-methyl-

• Formula: C₄H₈O₂
• Molecular weight: 88.1051
• IUPAC Standard InChI: InChI=1S/C4H8O2/c1-3(2)4(5)6/h3H,1-2H3,(H,5,6) Copy

  
• IUPAC Standard InChIKey: KQNPFQTWMSNSAP-UHFFFAOYSA-N Copy
• CAS Registry Number: 79-31-2
• 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: Isobutyric acid; α-Methylpropanoic acid; α-Methylpropionic acid; Dimethylacetic acid; Isobutanoic acid; Isopropylformic acid; 2-Methylpropanoic acid; 2-Methylpropionic acid; iso-C3H7COOH; Acetic acid, dimethyl-; Cenex RP b2; Propionic acid, 2-methyl-; Tenox IBP 2; Kyselina isomaselna; UN 2529; Methylpropanoic acid; Methylpropionic acid; 2-Propanecarboxylic acid; i-Butyric acid; NSC 62780
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• Information on this page:
  • Van Den Dool and Kratz RI, polar column, temperature ramp
  • References
  • Notes
• Other data available:
  • Condensed phase thermochemistry data
  • Phase change data
  • Reaction thermochemistry data
  • Henry's Law data
  • Gas phase ion energetics data
  • Ion clustering data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Gas Chromatography
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Van Den Dool and Kratz RI, polar column, temperature ramp

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, polar column, temperature ramp, Notes

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

Botelho, Caldeira, et al., 2007
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Osorio, Alarcon, et al., 2006
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Pinto, Guedes, et al., 2006
Pinto, A.B.; Guedes, C.M.; Moreira, R.F.A.; de Maria, C.A.B., Volatile constituents from headspace and aqueous solution of genipap (Genipa americana) fruit isolated by the solid-phase extraction method, Flavour Fragr. J., 2006, 21, 3, 488-491, https://doi.org/10.1002/ffj.1623 . [all data]

Bonvehí, 2005
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Colahan-Sederstrom, P.M.; Peterson, D.G., Inhibition of key aroma compound generated during ultrahigh-temperature processing of bovine milk via epicatechin addition, J. Agric. Food Chem., 2005, 53, 2, 398-402, https://doi.org/10.1021/jf0487248 . [all data]

Fang and Qian, 2005
Fang, Y.; Qian, M., Aroma compounds in Oregon Pinot Noir wine determined by aroma extract dilution analysis (AEDA), Flavour Fragr. J., 2005, 20, 1, 22-29, https://doi.org/10.1002/ffj.1551 . [all data]

Malliaa, Fernandez-Garcia, et al., 2005
Malliaa, S.; Fernandez-Garcia, E.; Bosset, J.O., Comparison of purge and trap and solid phase microextraction techniques for studying the volatile aroma compounds of three European PDO hard cheeses, Int. Dairy J., 2005, 15, 6-9, 741-758, https://doi.org/10.1016/j.idairyj.2004.11.007 . [all data]

Verzera, Campisi, et al., 2005
Verzera, A.; Campisi, S.; Zappalá, M., SUPELCO. Using SPME-GC-MS to characterize volatile components of honey as indicators of botanical origin, 2005, retrieved from http://www.sigmaaldrich.com/Brands/Supelco_Home/TheReporter.html. [all data]

Wu, Zorn, et al., 2005
Wu, S.; Zorn, H.; Krings, U.; Berger, R.G., Characteristic Volatiles from Young and Aged Fruiting Bodies of Wild Polyporus sulfureus (Bull.:Fr.) Fr., J. Agric. Food Chem., 2005, 53, 11, 4524-4528, https://doi.org/10.1021/jf0478511 . [all data]

Avsar, Karagul-Yuceer, et al., 2004
Avsar, Y.K.; Karagul-Yuceer, Y.; Drake, M.A.; Singh, T.K.; Yoon, Y.; Cadwallader, K.R., Characterization of nutty flavor in cheddar cheese, J. Dairy Sci., 2004, 87, 7, 1999-2010, https://doi.org/10.3168/jds.S0022-0302(04)70017-X . [all data]

Ledauphin, Saint-Clair, et al., 2004
Ledauphin, J.; Saint-Clair, J.-F.; Lablanquie, O.; Guichard, H.; Founier, N.; Guichard, E.; Barillier, D., Identification of trace volatile compounds in freshly distilled calvados and cognac using preparative separations coupled with gas chromatography-mass spectrometry, J. Agric. Food Chem., 2004, 52, 16, 5124-5134, https://doi.org/10.1021/jf040052y . [all data]

Mahajan, Goddik, et al., 2004
Mahajan, S.S.; Goddik, L.; Qian, M.C., Aroma Compounds in Sweet Whey Powder, J. Dairy Sci., 2004, 87, 12, 4057-4063, https://doi.org/10.3168/jds.S0022-0302(04)73547-X . [all data]

Ménager, Jost, et al., 2004
Ménager, I.; Jost, M.; Aubert, C., Changes in physicochemical characteristics and volatile constituents of strawberry (Cv. Cigaline) during maturation, J. Agric. Food Chem., 2004, 52, 5, 1248-1254, https://doi.org/10.1021/jf0350919 . [all data]

Aubert, Günata, et al., 2003
Aubert, C.; Günata; Ambid, C.; Baumes, R., Changes in physicochemical characteristics and volatile constituents of yellow- and white-fleshed nectarines during maturation and artificial ripening, J. Agric. Food Chem., 2003, 51, 10, 3083-3091, https://doi.org/10.1021/jf026153i . [all data]

Karagül-Yüceer, Cadwallader, et al., 2002
Karagül-Yüceer, Y.; Cadwallader, K.R.; Drake, M.A., Volatile flavor components of stored nonfat dry milk, J. Agric. Food Chem., 2002, 50, 2, 305-312, https://doi.org/10.1021/jf010648a . [all data]

Moreira, Trugo, et al., 2002
Moreira, R.F.A.; Trugo, L.C.; Pietroluongo, M.; de Maria, C.A.B., Flavor composition of cashew (Anacardium occidentale) and marmeleiro (Croton species) honeys, J. Agric. Food Chem., 2002, 50, 26, 7616-7621, https://doi.org/10.1021/jf020464b . [all data]

Karagül-Yüceer, Drake, et al., 2001
Karagül-Yüceer, Y.; Drake, M.; Cadwallader, K.R., Aroma-active components of nonfat dry milk, J. Agric. Food Chem., 2001, 49, 6, 2948-2953, https://doi.org/10.1021/jf0009854 . [all data]

Pino, Marbot, et al., 2001
Pino, J.A.; Marbot, R.; Vázquez, C., Characterization of volatiles in strawberry guava (Psidium cattleianum Sabine) fruit, J. Agric. Food Chem., 2001, 49, 12, 5883-5887, https://doi.org/10.1021/jf010414r . [all data]

Verzera, Campisi, et al., 2001
Verzera, A.; Campisi, S.; Zappalá, M.; Bonaccorsi, I., SPME-GC-MS analysis of honey volatile components for the characterization of different floral origin, Am. Lab. Fairfield Conn., 2001, 33, 15, 18-21. [all data]

Charles, Martin, et al., 2000
Charles, M.; Martin, B.; Ginies, C.; Etievant, P.; Coste, G.; Guichard, E., Potent aroma compounds of two red wine vinegars, J. Agric. Food Chem., 2000, 48, 1, 70-77, https://doi.org/10.1021/jf9905424 . [all data]

Moio, Piombino, et al., 2000
Moio, L.; Piombino, P.; Addeo, F., Odour-impact compounds of Gorgonzola cheese, J. Dairy Res., 2000, 67, 2, 273-285, https://doi.org/10.1017/S0022029900004106 . [all data]

Cha, Kim, et al., 1998
Cha, Y.J.; Kim, H.; Cadwallader, K.R., Aroma-active compounds in Kimchi during fermentation, J. Agric. Food Chem., 1998, 46, 5, 1944-1953, https://doi.org/10.1021/jf9706991 . [all data]

Moio and Addeo, 1998
Moio, L.; Addeo, F., Grana Padano cheese aroma, J. Dairy Res., 1998, 65, 2, 317-333, https://doi.org/10.1017/S0022029997002768 . [all data]

Ott, Fay, et al., 1997
Ott, A.; Fay, L.B.; Chaintreau, A., Determination and origin of the aroma impact compounds of yogurt flavor, J. Agric. Food Chem., 1997, 45, 3, 850-858, https://doi.org/10.1021/jf960508e . [all data]

Shimoda, Peralta, et al., 1996
Shimoda, M.; Peralta, R.R.; Osajima, Y., Headspace gas analysis of fish sauce, J. Agric. Food Chem., 1996, 44, 11, 3601-3605, https://doi.org/10.1021/jf960345u . [all data]

Shimoda, Wu, et al., 1996
Shimoda, M.; Wu, Y.; Osajima, Y., Aroma compounds from aqueous solution of Haze (Rhus succedanea) honey determined by adsorptive column chromatography, J. Agric. Food Chem., 1996, 44, 12, 3913-3918, https://doi.org/10.1021/jf9601168 . [all data]

Notes

Go To: Top, Van Den Dool and Kratz RI, polar column, temperature ramp, References

• Symbols used in this document:
  

  Tend	Final temperature
  Tstart	Initial temperature

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