4-Methyloctanoic acid
- Formula: C9H18O2
- Molecular weight: 158.2380
- IUPAC Standard InChI: InChI=1S/C9H18O2/c1-3-4-5-8(2)6-7-9(10)11/h8H,3-7H2,1-2H3,(H,10,11)
- IUPAC Standard InChIKey: LEGGANXCVQPIAI-UHFFFAOYSA-N
- CAS Registry Number: 54947-74-9
- 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:
- Other names: Octanoic acid, 4-methyl-
- Information on this page:
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IR Spectrum
Go To: Top, Mass spectrum (electron ionization), Gas Chromatography, References, Notes
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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Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.
Additional Data
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| Owner | SRD/NIST Collection (C) 2018 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
|---|---|
| Origin | EPA-IR VAPOR PHASE LIBRARY |
| State | gas |
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
View image of digitized spectrum (can be printed in landscape orientation).
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| Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
|---|---|
| Origin | NIST Mass Spectrometry Data Center, 1994 |
| NIST MS number | 135928 |
Gas Chromatography
Go To: Top, IR Spectrum, Mass spectrum (electron ionization), References, Notes
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
Van Den Dool and Kratz RI, polar column, temperature ramp
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | DB-Wax | 2097. | Whetstine M.E.C., Drake M.A., et al., 2006 | 30. m/0.25 mm/0.25 μm, He, 40. C @ 3. min, 10. K/min, 200. C @ 20. min |
| Capillary | DB-Wax | 2131. | Carunchia Whetstine, Croissant, et al., 2005 | 30. m/0.25 mm/0.25 μm, 40. C @ 3. min, 10. K/min, 200. C @ 20. min |
Van Den Dool and Kratz RI, polar column, custom temperature program
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | DB-FFAP | 2111. | Munk, Johansen, et al., 2001 | 30. m/0.32 mm/0.25 μm; Program: 40C(2min) => 40C/min => 60C (2min) => 6C/min => 180C => 10C/min => 240C(5min) |
| Capillary | DB-FFAP | 2083. | Munk, Munch, et al., 2000 | 30. m/0.32 mm/0.25 μm; Program: 40C(2min) => 40C/min => 60C (2min) => 6C/min => 180C => 10C/min => 240C (5min) |
References
Go To: Top, 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.
Whetstine M.E.C., Drake M.A., et al., 2006
Whetstine M.E.C.; Drake M.A.; Nelson B.K.; Barbano D.M.,
Flavor profiles of full-fat and reduced-fat cheese and cheese fat made from aged cheddar with the fat removed using a novel process,
J. Dairy Res., 2006, 89, 2, 505-517, https://doi.org/10.3168/jds.S0022-0302(06)72113-0
. [all data]
Carunchia Whetstine, Croissant, et al., 2005
Carunchia Whetstine, M.E.; Croissant, A.E.; Drake, M.A.,
Characterization of Dried Whey Protein Concentrate and Isolate Flavor,
J. Dairy Sci., 2005, 88, 11, 3826-3839, https://doi.org/10.3168/jds.S0022-0302(05)73068-X
. [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]
Munk, Munch, et al., 2000
Munk, S.; Munch, P.; Stahnke, L.; Adler-Nissen., J.; Schieberle, P.,
Primary odorants of laundry soiled with sweat/sebum: influence of lipase on the odor profile,
Journal of Surfactants and Detergents, 2000, 3, 4, 505-515, https://doi.org/10.1007/s11743-000-0150-z
. [all data]
Notes
Go To: Top, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, References
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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