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
  • Gas Chromatography
  • References
  • Notes
• Other data available:
  • IR Spectrum
  • Mass spectrum (electron ionization)
• 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

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

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• Symbols used in this document:
  

  ΔvapH

  Enthalpy of vaporization

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