Crotonic acid

• Formula: C₄H₆O₂
• Molecular weight: 86.0892
• IUPAC Standard InChI: InChI=1S/C4H6O2/c1-2-3-4(5)6/h2-3H,1H3,(H,5,6) Copy

  
• IUPAC Standard InChIKey: LDHQCZJRKDOVOX-UHFFFAOYSA-N Copy
• CAS Registry Number: 3724-65-0
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Stereoisomers:
  • 2-Butenoic acid, (E)-
  • Isocrotonic acid
  • 2-Butenoic acid, isomer # 1
• Other names: 2-Butenoic acid; α-Butenoic acid; 3-Methylacrylic acid; CH3CH=CHCOOH; α-Crotonic acid; β-Methylacrylic acid; Acrylic acid, 3-methyl-; Kyselina krotonova; UN 2823; But-2-enoic acid; NSC 206946; 2-Butenoic acid, isomer # 2
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• Information on this page:
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Gas Chromatography
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Phase change data
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
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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: Coblentz Society, Inc.

Condensed Phase Spectrum

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Notice: Except where noted, spectra from this collection were measured on dispersive instruments, often in carefully selected solvents, and hence may differ in detail from measurements on FTIR instruments or in other chemical environments. More information on the manner in which spectra in this collection were collected can be found here.

Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.

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

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

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

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Normal alkane RI, polar column, temperature ramp

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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.

Politeo, Jukic, et al., 2007
Politeo, O.; Jukic, M.; Milos, M., Chemical Composition and Antioxidant Activity of Free Volatile Aglycones from Laurel (Laurus nobilis L.) Compared to Its Essential Oil, Croatica Chem. Acta, 2007, 80, 1, 121-126. [all data]

Politeo, Jukic, et al., 2007, 2
Politeo, O.; Jukic, M.; Milos, M., Chemical composition and antioxidant capacity of free volatile aglycones from basil (Ocimum basilicum L.) compared with its essential oil, Food Chem., 2007, 101, 1, 379-385, https://doi.org/10.1016/j.foodchem.2006.01.045 . [all data]

Shiratsuchi, Shimoda, et al., 1993
Shiratsuchi, H.; Shimoda, M.; Minegishi, Y.; Osajima, Y., Isolation and identification of volatile flavor compounds in nonfermented coarse-cut sausage. Flavor as a quality factor of nonfermented sausage. 1, J. Agric. Food Chem., 1993, 41, 4, 647-652, https://doi.org/10.1021/jf00028a027 . [all data]

Parada, Duque, et al., 2000
Parada, F.; Duque, C.; Fujimoto, Y., Free and bound volatile composition and characterization of some glucoconjugates as aroma precursors in Melón de olor fruit pulp (Sicana odorifera), J. Agric. Food Chem., 2000, 48, 12, 6200-6204, https://doi.org/10.1021/jf0007232 . [all data]

Parada and Duque, 1998
Parada, F.; Duque, C., Studies on the aroma of piñuela fruit pulp (Bromelia plumieri): Free and bound volatile composition and characterization of some glucoconjugates as aroma precursors, J. Hi. Res. Chromatogr., 1998, 21, 10, 577-581, https://doi.org/10.1002/(SICI)1521-4168(19981001)21:10<577::AID-JHRC577>3.0.CO;2-V . [all data]

Notes

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