Indole, 3-methyl-

• Formula: C₉H₉N
• Molecular weight: 131.1745
• IUPAC Standard InChI: InChI=1S/C9H9N/c1-7-6-10-9-5-3-2-4-8(7)9/h2-6,10H,1H3 Copy

  
• IUPAC Standard InChIKey: ZFRKQXVRDFCRJG-UHFFFAOYSA-N Copy
• CAS Registry Number: 83-34-1
• 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.
• Other names: Skatole; 1H-Indole, 3-methyl-; β-Methylindole; Scatole; Skatol; 3-Methylindole; 3-MI; 3-Methyl-1H-indole; NSC 122024; 3-Methylindole (skatol); 3-methylindole (skatole); Indole, 3-methyl- (skatole)
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• Information on this page:
  • Phase change data
  • Gas phase ion energetics data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Gas Chromatography
  • References
  • Notes
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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 as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos

Reduced pressure boiling point

Enthalpy of vaporization

Antoine Equation Parameters

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

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Enthalpy of sublimation

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 as indicated in comments:
L - Sharon G. Lias

Data compiled as indicated in comments:
LL - Sharon G. Lias and Joel F. Liebman
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

Ionization energy determinations

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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Gas Phase Spectrum

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

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Van Den Dool and Kratz RI, 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, temperature ramp

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Normal alkane RI, polar column, custom temperature program

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Lee's RI, non-polar column, temperature ramp

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Lee's RI, non-polar column, custom temperature program

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References

Go To: Top, Phase change data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, Notes

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

Cowley and Partington, 1936
Cowley, E.G.; Partington, J.R., Studies in dielectric polarisation. Part XV. The dipole moments of fivemembered nitrogen ring compounds: indole,skatole,carbazole,isatin, phthalimide, and succinimide., J. Chem. Soc., 1936, 1936, 47. [all data]

Ribeiro da Silva, Cabral, et al., 2009
Ribeiro da Silva, Manuel A.V.; Cabral, Joana I.T.A.; Gomes, José R.B., Combined experimental and computational study of the energetics of methylindoles, The Journal of Chemical Thermodynamics, 2009, 41, 11, 1193-1198, https://doi.org/10.1016/j.jct.2009.05.018 . [all data]

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]

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]

Hager and Wallace, 1988
Hager, J.W.; Wallace, S.C., Two-laser photoionization supersonic jet mass spectrometry of aromatic molecules, Anal. Chem., 1988, 60, 5. [all data]

Gusten, Klasinc, et al., 1976
Gusten, H.; Klasinc, L.; Ruscic, B., Photoelectron spectroscopy of J. Heterocycl. Chem.. Indene analogs, Z. Naturforsch. A:, 1976, 31, 1051. [all data]

Tibor and Anna, 1971
Tibor, T.; Anna, B., Gázkromatográfiás retenció és a kémiai szerkezet, I., Magy. Kem. Foly., 1971, 77, 576-587. [all data]

Engel and Ratel, 2007
Engel, E.; Ratel, J., Correction of the data generated by mass spectrometry analyses of biological tissues: Application to food authentication, J. Chromatogr. A, 2007, 1154, 1-2, 331-341, https://doi.org/10.1016/j.chroma.2007.02.012 . [all data]

Lozano P.R., Drake M., et al., 2007
Lozano P.R.; Drake M.; Benitez D.; Cadwallader K.R., Instrumental and sensory characterization of heat-induced odorants in aseptically packaged soy milk, J. Agric. Food Chem., 2007, 55, 8, 3018-3026, https://doi.org/10.1021/jf0631225 . [all data]

Schlutt B., Moran N., et al., 2007
Schlutt B.; Moran N.; Schieberle P.; Hofmann T., Sensory-directed identification of creaminess-enhancing volatiles and semivolatiles in full-fat cream, J. Agric. Food Chem., 2007, 55, 23, 9634-9645, https://doi.org/10.1021/jf0721545 . [all data]

Alves, Pinto, et al., 2005
Alves, R.J.V.; Pinto, A.C.; da Costa, A.V.M.; Rezende, C.M., Zizyphus mauritiana Lam. (Rhamnaceae) and the chemical composition of its floral fecal odor, J. Braz. Chem. Soc., 2005, 16, 3B, 654-656, https://doi.org/10.1590/S0103-50532005000400027 . [all data]

Colahan-Sederstrom and Peterson, 2005
Colahan-Sederstrom, P.M.; Peterson, D.G., Inhibition of key aroma compound generated during ultrahigh-temperature processing of bovine milk via epicatechin addition, J. Agric. Food Chem., 2005, 53, 2, 398-402, https://doi.org/10.1021/jf0487248 . [all data]

Whetstine, Cadwallader, et al., 2005
Whetstine, M.E.C.; Cadwallader, K.R.; Drake, M.A., Characterization of aroma compounds responsible for the rosy/floral flavor in cheddar cheese, J. Agric. Food Chem., 2005, 53, 8, 3126-3132, https://doi.org/10.1021/jf048278o . [all data]

Mahajan, Goddik, et al., 2004
Mahajan, S.S.; Goddik, L.; Qian, M.C., Aroma Compounds in Sweet Whey Powder, J. Dairy Sci., 2004, 87, 12, 4057-4063, https://doi.org/10.3168/jds.S0022-0302(04)73547-X . [all data]

Karagül-Yüceer, Vlahovich, et al., 2003
Karagül-Yüceer, Y.; Vlahovich, K.N.; Drake, M.A.; Cadwallader, K.R., Characteristic aroma components of rennet casein, J. Agric. Food Chem., 2003, 51, 23, 6797-6801, https://doi.org/10.1021/jf0345806 . [all data]

Peterson and Reineccius, 2003
Peterson, D.G.; Reineccius, G.A., Characterization of the volatile compounds that constitute fresh sweet cream butter aroma, Flavour Fragr. J., 2003, 18, 3, 215-220, https://doi.org/10.1002/ffj.1192 . [all data]

Peterson and Reineccius, 2003, 2
Peterson, D.G.; Reineccius, G.A., Determination of the aroma impact compounds in heated sweet cream butter, Flavour Fragr. J., 2003, 18, 4, 320-324, https://doi.org/10.1002/ffj.1228 . [all data]

Karagül-Yüceer, Cadwallader, et al., 2002
Karagül-Yüceer, Y.; Cadwallader, K.R.; Drake, M.A., Volatile flavor components of stored nonfat dry milk, J. Agric. Food Chem., 2002, 50, 2, 305-312, https://doi.org/10.1021/jf010648a . [all data]

Karagül-Yüceer, Drake, et al., 2001
Karagül-Yüceer, Y.; Drake, M.; Cadwallader, K.R., Aroma-active components of nonfat dry milk, J. Agric. Food Chem., 2001, 49, 6, 2948-2953, https://doi.org/10.1021/jf0009854 . [all data]

Lee, Suriyaphan, et al., 2001
Lee, G.-H.; Suriyaphan, O.; Cadwallader, K.R., Aroma components of cooked tail meat of American lobster (Homarus americanus), J. Agric. Food Chem., 2001, 49, 9, 4324-4332, https://doi.org/10.1021/jf001523t . [all data]

Moio L., Rillo L., et al., 1996
Moio L.; Rillo L.; Ledda A.; Addeo F., Odorous constituents of ovine milk in relationship to diet, J. Dairy Sci., 1996, 79, 8, 1322-1331, https://doi.org/10.3168/jds.S0022-0302(96)76488-3 . [all data]

Rostad and Pereira, 1986
Rostad, C.E.; Pereira, W.E., Kovats and Lee retention indices determined by gas chromatography/mass spectrometry for organic compounds of environmental interest, J. Hi. Res. Chromatogr. Chromatogr. Comm., 1986, 9, 6, 328-334, https://doi.org/10.1002/jhrc.1240090603 . [all data]

Kim, Lee, et al., 2003
Kim, T.H.; Lee, S.M.; Kim, Y.-S.; Kim, K.H.; Oh, S.; Lee, H.J., Aroma dilution method using GC injector split ratio for volatile compounds extracted by headspace solid phase microextraction, Food Chem., 2003, 83, 1, 151-158, https://doi.org/10.1016/S0308-8146(03)00221-8 . [all data]

Jezussek, Juliano, et al., 2002
Jezussek, M.; Juliano, B.O.; Schieberle, P., Comparison of key aroma compounds in cooked brown rice varieties based on aroma extract dilution analysis, J. Agric. Food Chem., 2002, 50, 5, 1101-1105, https://doi.org/10.1021/jf0108720 . [all data]

Zehentbauer and Reineccius, 2002
Zehentbauer, G.; Reineccius, G.A., Determination of key aroma components of cheddar cheese using dynamic headspace dilution assay, Flavour Fragr. J., 2002, 17, 4, 300-305, https://doi.org/10.1002/ffj.1102 . [all data]

Zimmermann and Schieberle, 2000
Zimmermann, M.; Schieberle, P., Important odorants of sweet bell pepper powder (Capsicum annuum cv. annuum): differences between samples of Hungarian and Morrocan origin, Eur. Food Res. Technol., 2000, 211, 3, 175-180, https://doi.org/10.1007/s002170050019 . [all data]

Milo and Reineccius, 1997
Milo, C.; Reineccius, G.A., Identification and quantification of potent odorants in regular-fat and low-fat mild cheddar cheese, J. Agric. Food Chem., 1997, 45, 9, 3590-3594, https://doi.org/10.1021/jf970152m . [all data]

Yasuhara, Shiraishi, et al., 1997
Yasuhara, A.; Shiraishi, H.; Nishikawa, M.; Yamamoto, T.; Uehiro, T.; Nakasugi, O.; Okumura, T.; Kenmotsu, K.; Fukui, H.; Nagase, M.; Ono, Y.; Kawagoshi, Y.; Baba, K.; Noma, Y., Determination of organic components in leachates from hazardous waste disposal sites in Japan by gas chromatography-mass spectrometry, J. Chromatogr. A, 1997, 774, 1-2, 321-332, https://doi.org/10.1016/S0021-9673(97)00078-2 . [all data]

Lozano P.R., Miracle E.R., et al., 2007
Lozano P.R.; Miracle E.R.; Krause A.J.; Drake M.; Cadwallader K.R., Effect of cold storage and packaging material on the major aroma components of sweet cream butter, J. Agric. Food Chem., 2007, 55, 19, 7840-7846, https://doi.org/10.1021/jf071075q . [all data]

Avsar, Karagul-Yuceer, et al., 2004
Avsar, Y.K.; Karagul-Yuceer, Y.; Drake, M.A.; Singh, T.K.; Yoon, Y.; Cadwallader, K.R., Characterization of nutty flavor in cheddar cheese, J. Dairy Sci., 2004, 87, 7, 1999-2010, https://doi.org/10.3168/jds.S0022-0302(04)70017-X . [all data]

Chung, 1999
Chung, H.Y., Volatile components in crabmeats of Charybdis feriatus, J. Agric. Food Chem., 1999, 47, 6, 2280-2287, https://doi.org/10.1021/jf981027t . [all data]

Frauendorfer and Schieberle, 2006
Frauendorfer, F.; Schieberle, P., Identification of the key aroma compounds in Cocoa powder based on molecular sensoly correlations, J. Agr. Food Chem., 2006, 54, 15, 5521-5529, https://doi.org/10.1021/jf060728k . [all data]

Munk, Johansen, et al., 2001
Munk, S.; Johansen, C.; Stahnke, L.H.; Adler-Nissen, J., Microbial survival and odor in laundry, Journal of Surfactants and Detergents, 2001, 4, 4, 385-394, https://doi.org/10.1007/s11743-001-0192-2 . [all data]

Yasuhara, 1987
Yasuhara, A., Identification of Volatile Compounds in Poultry Manure by Gas Chromatography-Mass Spectrometry, J. Chromatogr., 1987, 387, 371-378, https://doi.org/10.1016/S0021-9673(01)94539-X . [all data]

Fanaro, Duarte, et al., 2012
Fanaro, G.B.; Duarte, R.C.; Santillo, A.G.; Pinto e Silva, M.E.M.; Purgatto, E.; Villavicento, A.L.C.H., Evaluation of γ-radiation on oolong tea odor volatiles, Radiation Phys. Chem., 2012, 81, 8, 1152-1156, https://doi.org/10.1016/j.radphyschem.2011.11.061 . [all data]

Harrison and Priest, 2009
Harrison, B.M.; Priest, F.G., Composition of peaks used in the preparation of malt for Scotch Whisky production - influence of geographical source and extraction depth, J. Agric. Food Chem., 2009, 57, 6, 2385-2391, https://doi.org/10.1021/jf803556y . [all data]

Mallia, Escher, et al., 2009
Mallia, S.; Escher, F.; Dubois, S.; Schieberle, P.; Schlichtherle-Cerny, H., Characterization and quantification of odor-active compounds in unsaturated fatty acid/conjugated linoleic acid (UFA/CLA)-enriched butter and in conventional butter during storage and induced oxidation, J. Agric. Food Chem., 2009, 57, 16, 7464-7472, https://doi.org/10.1021/jf9002158 . [all data]

Breme, Langle, et al., 2008
Breme, K.; Langle, S.; Fernandez, X.; Meierhenrich, U.J.; Brevard, H.; Joulain, D., Character impact odorants from Brassicaceae by aroma extracts dilution analysis (AEDA): Brassica cretica and Brassica insularis, Flavour Fragr. J., 2008, 24, 2, 88-93, https://doi.org/10.1002/ffj.1912 . [all data]

Sebastian, Viallon-Fernandez, et al., 2003
Sebastian, I.; Viallon-Fernandez, C.; Berge, P.; Berdague, J.-L., Analysis of the volatile fraction of lamb fat tissue: influence of the type of feeding, Sciences des Aliments, 2003, 23, 4, 497-511, https://doi.org/10.3166/sda.23.497-511 . [all data]

Sanz, Czerny, et al., 2002
Sanz, C.; Czerny, M.; Cid, C.; Schieberle, P., Comparison of potent odorants in a filtered coffee brew and in an instant coffee beverage by aroma extract dilution analysis (AEDA), Eur. Food Res. Technol., 2002, 214, 4, 299-302, https://doi.org/10.1007/s00217-001-0459-9 . [all data]

Cadwallader and Heo, 2001
Cadwallader, K.R.; Heo, J., Aroma of roasted sesame oil: characterization by direct thermal desorption-gas chromatography-olfactometry and sample dilution analysis, Am. Chem. Soc. Symp. Ser., 2001, 782, 187-202. [all data]

Kelling, 2001
Kelling, F.J., Olfaction in houseflies: morphology and electrophysiology. Chapter 7. Chemical and electrophysiological analysis of components, present in natural products that attract houseflies, Dissertation, University of Groningen, The Netherlands, 2001. [all data]

Suriyaphan, Drake, et al., 1999
Suriyaphan, O.; Drake, M.A.; Cadwallader, K.R., Identification of volatile off-flavors in reduced-fat cheddar cheeses containing lecitin, Lebensm.-Wiss. u. Technol., 1999, 32, 5, 250-254, https://doi.org/10.1006/fstl.1999.0543 . [all data]

Boatright and Crum, 1997
Boatright, W.L.; Crum, A.D., Nonpolar-volatile lipids from soy protein isolates and hexane-defatted flakes, J. Amer. Oil Chem. Soc., 1997, 74, 4, 461-467, https://doi.org/10.1007/s11746-997-0107-z . [all data]

Moio, Dekimpe, et al., 1993
Moio, L.; Dekimpe, J.; Etievant, P.; Addeo, F., Neutral volatile compounds in the raw milks from different species, J. Dairy Res., 1993, 60, 2, 199-213, https://doi.org/10.1017/S0022029900027515 . [all data]

Okumura, 1991
Okumura, T., retention indices of environmental chemicals on methyl silicone capillary column, Journal of Environmental Chemistry (Japan), 1991, 1, 2, 333-358, https://doi.org/10.5985/jec.1.333 . [all data]

Christlbauer and Schieberle, 2009
Christlbauer, M.; Schieberle, P., Characterization of the key aroma compounds in beef and pork vegetable gravies a la chef by application of the aroma extract dilution analysis, J. Agric. Food Chem., 2009, 57, 19, 9114-9112, https://doi.org/10.1021/jf9023189 . [all data]

Buettner, 2007
Buettner, A., A selective and sensitive approach to characterize odour-active and volatile constituents in small-scale human milk samples, Flavour Fragr. J., 2007, 22, 6, 465-473, https://doi.org/10.1002/ffj.1822 . [all data]

Steinhaus and Schieberle, 2005
Steinhaus, M.; Schieberle, P., Characterization of odorants causing an atypical aroma in white pepper powder (Piper nigrum L.) based on quantitative measurements and orthonasal breakthrough thresholds, J. Agric. Food Chem., 2005, 53, 15, 6049-6055, https://doi.org/10.1021/jf0506030 . [all data]

Buettner and Welle, 2004
Buettner, A.; Welle, F., Intra-oral detection of potent odorants using a modified stir-bar sorptive extraction system in combination with HRGC-O, known as the buccal odour screening system (BOSS), Flavour Fragr. J., 2004, 19, 6, 505-514, https://doi.org/10.1002/ffj.1473 . [all data]

Buettner, 2004
Buettner, A., Investigation of potent odorants and afterodor development in two chardonnay wines using the Buccal Odor Screening System (BOSS), J. Agric. Food Chem., 2004, 52, 8, 2339-2346, https://doi.org/10.1021/jf035322b . [all data]

Garcia-Estaban, Ansorena, et al., 2004
Garcia-Estaban, M.; Ansorena, D.; Astiasaran, I.; Martin, D.; Ruiz, J., Comparison of simultaneous distillation extraction (SDE) and solid-phase microextraction (SPME) for the analysis of volatile compounds in dry-cured ham, J. Sci. Food Agric., 2004, 84, 11, 1364-1370, https://doi.org/10.1002/jsfa.1826 . [all data]

Begnaud, Pérès, et al., 2003
Begnaud, F.; Pérès, C.; Berdagué, J.-L., Characterization of volatile effluents of livestock buildings by solid-phase microextraction, Int. J. Environ. Anal. Chem., 2003, 83, 10, 837-849, https://doi.org/10.1080/03067310310001603349 . [all data]

Young, Lane, et al., 2003
Young, O.A.; Lane, G.A.; Priolo, A.; Fraser, K., Pastoral and species flavour in lambs raised on pasture, lucerne or maize, J. Sci. Food Agric., 2003, 83, 2, 93-104, https://doi.org/10.1002/jsfa.1282 . [all data]

Schermann and Schieberle, 1997
Schermann, P.; Schieberle, P., Evaluation of key odorants in milk chocolate and cocoa mass by aroma extract dilution analyses, J. Agric. Food Chem., 1997, 45, 3, 867-872, https://doi.org/10.1021/jf960670h . [all data]

Schieberle, 1996
Schieberle, P., Odour-active compounds in moderately roasted sesame, Food Chem., 1996, 55, 2, 145-152, https://doi.org/10.1016/0308-8146(95)00095-X . [all data]

Kawai, Ishida, et al., 1991
Kawai, T.; Ishida, Y.; Kakiuchi, H.; Ikeda, N.; Higashida, T.; Nakamura, S., Flavor components of dried squid, J. Agric. Food Chem., 1991, 39, 4, 770-777, https://doi.org/10.1021/jf00004a031 . [all data]

Kishimoto, Wanikawa, et al., 2006
Kishimoto, T.; Wanikawa, A.; Kono, K.; Shibata, K., Comparison of the Odor-Active Compounds in Unhopped Beer and Beers Hopped with Different Hop Varieties, J. Agric. Food Chem., 2006, 54, 23, 8855-8861, https://doi.org/10.1021/jf061342c . [all data]

Preininger and Ullrich, 2001
Preininger, M.; Ullrich, F., Trace compound analysis for off-flavor characterization of micromilled milk powder, Am. Chem. Soc. Symp. Ser., 2001, 782, 46-61. [all data]

Delabre and Bendall, 9999
Delabre, M.-L.; Bendall, J.F., Flavour ingredients from fermented dairy streams, Expression of Multidisciplinary Flavour Sci., 9999, 375-378. [all data]

Harraca, Syed, et al., 2009
Harraca, V.; Syed, Z.; Guerin, P.M., Olfactory and behavioural responces of tsetse flies, Glossina spp., to rumen metabolites, J. Comp. Physiol. A, 2009, 195, 9, 815-824, https://doi.org/10.1007/s00359-009-0459-y . [all data]

Vassilaros, Kong, et al., 1982
Vassilaros, D.L.; Kong, R.C.; Later, D.W.; Lee, M.L., Linear retention index system for polycyclic aromatic compounds. Critical evaluation and additional indices, J. Chromatogr., 1982, 252, 1-20, https://doi.org/10.1016/S0021-9673(01)88394-1 . [all data]

Lee, Vassilaros, et al., 1979
Lee, M.L.; Vassilaros, D.L.; White, C.M.; Novotny, M., Retention Indices for Programmed-Temperature Capillary-Column Gas Chromatography of Polycyclic Aromatic Hydrocarbons, Anal. Chem., 1979, 51, 6, 768-773, https://doi.org/10.1021/ac50042a043 . [all data]

Eckel, Ross, et al., 1993
Eckel, W.P.; Ross, B.; Isensee, R.K., Pentobarbital found in ground water, Ground Water, 1993, 31, 5, 801-804, https://doi.org/10.1111/j.1745-6584.1993.tb00853.x . [all data]

Notes

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

• Symbols used in this document:
  

  IE (evaluated)	Recommended ionization energy
  Tboil	Boiling point
  Tfus	Fusion (melting) point
  ΔsubH	Enthalpy of sublimation
  ΔsubH°	Enthalpy of sublimation at standard conditions
  ΔvapH	Enthalpy of vaporization

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