α Isomethyl ionone

• Formula: C₁₄H₂₂O
• Molecular weight: 206.3239
• IUPAC Standard InChI: InChI=1S/C14H22O/c1-10-7-6-8-14(4,5)13(10)9-11(2)12(3)15/h7,9,13H,6,8H2,1-5H3/b11-9+ Copy

  
• IUPAC Standard InChIKey: JRJBVWJSTHECJK-PKNBQFBNSA-N Copy
• CAS Registry Number: 127-51-5
• 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:
  • Isomethylionone
• Stereoisomers:
  • Methyl ionone I
  • Methyl ionone II
• Other names: 4-(2,6,6-Trimethyl 2-cyclohexen-1-yl)-3-methyl-3-buten-2-one; 3-Buten-2-one, 3-methyl-4-(2,6,6-trimethyl-2-cyclohexen-1-yl)-; α-Cetone; α-Ionone, isomethyl-; Cetone alpha; iso-α-methyl ionone; Isomethyl-α-ionone; Methyl-α-isoionone; 8-Methyl-α-ionone; NSC 66432; Isomethylionone; 3-methyl-4-(2,6,6-trimethyl-2-cyclohexenyl)-3-buten-2-one; 3-Methyl-4-(2,6,6-trimethylcyclohex-2-enyl)-but-3-en-2-one; 3-methyl-4-(2,6,6-trimethyl-2-cyclohexen-1-yl)-3-buten-2-one
• Information on this page:
  • Phase change data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Gas Chromatography
  • References
  • Notes
• Options:
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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: William E. Acree, Jr., James S. Chickos

Enthalpy of vaporization

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.

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

Kovats' RI, non-polar column, isothermal

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Kovats' RI, polar column, isothermal

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

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

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Normal alkane RI, non-polar column, temperature ramp

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Normal alkane RI, non-polar column, custom temperature program

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Normal alkane RI, polar column, custom temperature program

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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.

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]

Tudor, 1997
Tudor, E., Temperature dependence of the retention index for perfumery compounds on a SE-30 glass capillary column. I. Linear equations, J. Chromatogr. A, 1997, 779, 1-2, 287-297, https://doi.org/10.1016/S0021-9673(97)00453-6 . [all data]

Tudor, Moldovan, et al., 1999
Tudor, E.; Moldovan, D.; Zârna, N., Temperature dependence of the retention index for perfumery compounds on two carbowax-20M glass capillary columns with different film thickness. 2, Rev. Roum. Chim., 1999, 44, 7, 665-675. [all data]

Mondello, Sciarrone, et al., 2007
Mondello, L.; Sciarrone, D.; Casilli, A.; Tranchida, P.Q.; Dugo, P.; Dugo, G., Fast gas chromatography-full scan quadrupole mass spectrometry for the determination of allergens in fragrances, J. Sep. Sci., 2007, 30, 12, 1905-1911, https://doi.org/10.1002/jssc.200600541 . [all data]

Mondello and Costa, 2006
Mondello, L.; Costa, R., A new generation of GC capillary columns: SLB-5ms, The Reporter (Europe), 2006, 20, March, 17-19. [all data]

Paramonov, Khalilova, et al., 2000
Paramonov, E.A.; Khalilova, A.Z.; Odinokov, V.N.; Khalilov, L.M., Identification and biological activity of volatile organic compounds isolated from plants and insects. III. Chromatography-mass spectrometry of volatile compoundsof Aegopodium podagraria, Chem. Nat. Compd. (Engl. Transl.), 2000, 36, 6, 584-586, https://doi.org/10.1023/A:1017563708858 . [all data]

Halket and Schulten, 1985
Halket, J.M.; Schulten, H.-R., Thick-film capillary column gas chromatography-field ionization mass spectrometry: A complementary technique for the rapid analysis of volatiles, J. Chromatogr., 1985, 322, 200-205, https://doi.org/10.1016/S0021-9673(01)97672-1 . [all data]

Bieri and Marriott, 2008
Bieri, S.; Marriott, P.J., Dual-injection system with multiply injections for determining sidimentional retention indexes in comprehensive two-dimensional gas chromatography, Anal. Chem., 2008, 80, 3, 760-768, https://doi.org/10.1021/ac071367q . [all data]

Mondello, Casilli, et al., 2008
Mondello, L.; Casilli, A.; Tranchida, Q.; Sciarrone, D.; Dugo, P.; Dugo, G., Analysis of allergens in fragrances using multiple heart-cut multidimentional gas chromatography - mass spectrometry, LC-GC Europe, 2008, 21, 130. [all data]

Leffingwell and Alford, 2005
Leffingwell, J.C.; Alford, E.D., Volatile constituents of Perique tobacco, Electron. J. Environ. Agric. Food Chem., 2005, 4, 2, 899-915. [all data]

Zhao, Li, et al., 2008
Zhao, Y.; Li, J.; Xu, Y.; Duan, H.; Fan, W.; Zhao, G., EXtraction, preparation and identification of volatile compounds in Changyu XO brandy, Chinese J. Chromatogr., 2008, 26, 2, 212-222, https://doi.org/10.1016/S1872-2059(08)60014-0 . [all data]

Splivallo, Bossi, et al., 2007
Splivallo, R.; Bossi, S.; Maffei, M.; Bonfante, P., Discrimination of truffle fruiting body versus mycelial aromas by stir bar sorptive extraction, Phytochemistry, 2007, 68, 20, 2584-2598, https://doi.org/10.1016/j.phytochem.2007.03.030 . [all data]

Welke, Manfroi, et al., 2012
Welke, J.E.; Manfroi, V.; Zanus, M.; Lazarotto, M.; Zini, C.A., Characterization of the volatile profile of Brazilian merlot wines through comprehensive two dimensional gas chromatography time-of-flight mass spectrometric detection, J. Chromatogr. A, 2012, 1226, 124-139, https://doi.org/10.1016/j.chroma.2012.01.002 . [all data]

Loskos, Hernandez-Orte, et al., 2007
Loskos, N.; Hernandez-Orte, P.; Cacho, J.; Ferreira, V., Release and formation of varietal aroma compounds during alcoholic fermentation from nonfloral grape odorless flavor precursors fractions, J. Agric. Food Chem., 2007, 55, 16, 6674-6684, https://doi.org/10.1021/jf0702343 . [all data]

Notes

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

• Symbols used in this document:
  

  ΔvapH

  Enthalpy of vaporization

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