2-Pentenal, (E)-

• Formula: C₅H₈O
• Molecular weight: 84.1164
• IUPAC Standard InChI: InChI=1S/C5H8O/c1-2-3-4-5-6/h3-5H,2H2,1H3/b4-3+ Copy

  
• IUPAC Standard InChIKey: DTCCTIQRPGSLPT-ONEGZZNKSA-N Copy
• CAS Registry Number: 1576-87-0
• 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.
• Species with the same structure:
  • (E)-2-Pentenal
• Stereoisomers:
  • (Z)-2-pentenal
  • 2-Pentenal
  • 2-Pentenal, isomer 1
  • 2-Pentenal, isomer 2
• Other names: trans-2-Pentenal; trans-2-Penten-1-al; 2-(E)-Pentenal; (E)-2-Pentenal; (E)-Pent-2-enal; trans-Pent-2-enal; (E)-pent-2-en-1-al
• Information on this page:
  • Phase change data
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • Mass spectrum (electron ionization)
  • Gas Chromatography
• Options:
  • Switch to SI units

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 by: Robert L. Brown and Stephen E. Stein

Reduced pressure boiling point

Reaction 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

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

=

By formula: C₅H₈O = C₅H₈O

Gas phase ion energetics 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 evaluated by: Edward P. Hunter and Sharon G. Lias

References

Go To: Top, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Notes

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

Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]

Hine, Kanagasabapathy, et al., 1982
Hine, J.; Kanagasabapathy, V.M.; Ng, P., Double bond stabilizing abilities of formyl, carbo-tert-butoxy, and carbomethoxy substituents, J. Org. Chem., 1982, 47, 2745-2748. [all data]

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Notes

Go To: Top, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, References

• Symbols used in this document:
  

  Tboil	Boiling point
  ΔrH°	Enthalpy of reaction at standard conditions

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