2(3H)-Furanone, dihydro-5-methyl-

• Formula: C₅H₈O₂
• Molecular weight: 100.1158
• IUPAC Standard InChI: InChI=1S/C5H8O2/c1-4-2-3-5(6)7-4/h4H,2-3H2,1H3 Copy

  
• IUPAC Standard InChIKey: GAEKPEKOJKCEMS-UHFFFAOYSA-N Copy
• CAS Registry Number: 108-29-2
• 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.
• Species with the same structure:
  • 2(3H)-Furanone, dihydro-5-methyl-
• Other names: γ-Methyl-γ-butyrolactone; γ-Pentalactone; γ-Valerolactone; Pentanoic acid, 4-hydroxy-, γ-lactone; 4-Hydroxypentanoic acid lactone; 4-Hydroxyvaleric acid lactone; 4-Methyl-γ-butyrolactone; 4-Pentanolide; 4-Valerolactone; γ-Pentanolactone; γ-Valerolakton; Dihydro-5-methyl-2(3H)-furanone; Valeric acid, 4-hydroxy-, gamma-lactone; gamma-Valerolactone; 5-Methyldihydrofuran-2(3H)-one; 5-methyltetrahydrofuran-2-one; Dihydro-5-methyl-2-furanone; (.+/-.)-γ-Valerolactone; (.+/-.)-4-Methylbutyrolactone; 5-Methyltetrahydro-2-furanone; NSC 33700; Valeric acid, 4-hydroxy-, γ-lactone; 5-Methyldihydro-2(3H)-furanone; Pentan-4-olide; 5-Methyloxolan-2-one; Valerolactone
• Information on this page:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Phase change data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • References
  • Notes
• Other data available:
  • Gas Chromatography
• Options:
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Gas phase 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

Condensed phase 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

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:
BS - Robert L. Brown and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.

Enthalpy of vaporization

Antoine Equation Parameters

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

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IR Spectrum

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), References, Notes

Data compiled by: Coblentz Society, Inc.

• SALTED SOLUTION (CCl4 FOR 3800-1330, CS2 FOR 1330-450 CM^-1); BECKMAN IR-9 (GRATING); DIGITIZED BY NIST FROM HARD COPY (FROM TWO SEGMENTS); 4 cm^-1 resolution
• SOLUTION (10% CCl4 FOR 2.0-7.5, 10% CS2 FOR 7.5-16.0 MICRON); BAIRD (PRISM); DIGITIZED BY COBLENTZ SOCIETY (BATCH I) FROM HARD COPY; 2 cm^-1 resolution

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

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Mass spectrum (electron ionization), Notes

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

Leitao, Pilcher, et al., 1990
Leitao, M.L.P.; Pilcher, H.; Meng-Yan, Y.; Brown, J.M.; Conn, A.D., Enthalpies of combustion of γ-butyrolactone, γ-valerolactone, and δ-valerolactone, J. Chem. Thermodyn., 1990, 22, 885-891. [all data]

Brown, Conn, et al., 1989
Brown, J.M.; Conn, A.D.; Pilcher, G.; Leitao, M.L.P.; Yang, M.-Y., On the strain energy of 5-ring and 6-ring lactones, J. Chem. Soc., Chem. Commun., 1989, 1817-1819. [all data]

Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc., Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]

Emel'yanenko, Kozlova, et al., 2008
Emel'yanenko, Vladimir N.; Kozlova, Svetlana A.; Verevkin, Sergey P.; Roganov, Gennady N., Vapour pressures and enthalpies of vapourization of a series of the «947»-lactones, The Journal of Chemical Thermodynamics, 2008, 40, 6, 911-916, https://doi.org/10.1016/j.jct.2008.02.002 . [all data]

Emel'yanenko, Verevkin, et al., 2009
Emel'yanenko, V.N.; Verevkin, S.P.; Burakova, E.N.; Roganov, G.N.; Georgieva, M.K., The thermodynamic properties of alkylated «947»-lactones, Russ. J. Phys. Chem., 2009, 83, 4, 598-603, https://doi.org/10.1134/S0036024409040141 . [all data]

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]

Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Mass spectrum (electron ionization), References

• Symbols used in this document:
  

  Tboil	Boiling point
  ΔcH°liquid	Enthalpy of combustion of liquid at standard conditions
  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔfH°liquid	Enthalpy of formation of liquid at standard conditions
  ΔvapH	Enthalpy of vaporization
  ΔvapH°	Enthalpy of vaporization at standard conditions

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