Octanoic acid
- Formula: C8H16O2
- Molecular weight: 144.2114
- IUPAC Standard InChI: InChI=1S/C8H16O2/c1-2-3-4-5-6-7-8(9)10/h2-7H2,1H3,(H,9,10)
- IUPAC Standard InChIKey: WWZKQHOCKIZLMA-UHFFFAOYSA-N
- CAS Registry Number: 124-07-2
- 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. - Other names: n-Caprylic acid; n-Octanoic acid; n-Octoic acid; n-Octylic acid; Neo-Fat 8; Caprylic acid; Enantic acid; Octylic acid; 1-Heptanecarboxylic acid; Heptane-1-carboxylic acid; Octic acid; Hexacid 898; C-8 Acid; Kyselina kaprylova; Lunac 8-95; Emery 657; Octoic acid; Prifac 2901; 1-Octanoic acid; NSC 5024; Prifrac 2901
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Van Den Dool and Kratz RI, non-polar column, custom temperature program
Go To: Top, 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
| Column type | Capillary | Capillary | Capillary | Capillary | Capillary |
|---|---|---|---|---|---|
| Active phase | HP-5MS | VF-5MS | DB-5 | DB-5 | DB-5MS |
| Column length (m) | 30. | 30. | 30. | 30. | 30. |
| Carrier gas | He | He | He | He | H2 |
| Substrate | |||||
| Column diameter (mm) | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 |
| Phase thickness (μm) | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 |
| Program | 60C (1 min) => 5 C/min => 210C => 10 C/min => 280C (15 min) | Multi-step temperature program; T(initial)=60C; T(final)=270C | 40C(2min) => 4C/min => 220C => 20C/min => 280C | 60C(2min) => 3C/min => 240C => 10C/min => 270C (4.5min) | 40C (5min) => 2C/min => 200C => 5C/min => 250C (15min) |
| I | 1169.5 | 1201.7 | 1169. | 1180. | 1180. |
| Reference | Andriamaharavo, 2014 | Tret'yakov, 2008 | Andrade, Sampaio, et al., 2007 | Passos X.S., Castro A.C.M., et al., 2003 | Boulanger and Crouzet, 2001 |
| Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
| Column type | Capillary | Capillary | Packed |
|---|---|---|---|
| Active phase | DB-1 | Methyl Silicone | SE-30 |
| Column length (m) | 15. | 3.05 | |
| Carrier gas | He | ||
| Substrate | Supelcoport; Chromosorb | ||
| Column diameter (mm) | 0.53 | ||
| Phase thickness (μm) | 1. | ||
| Program | 40C(3min) => 8C/min => 200(1min) => 5C/min => 300C(25min) | not specified | 40C(5min) => 10C/min => 200C or 250C (60min) |
| I | 1162. | 1187. | 1187. |
| Reference | Peng, 2000 | Peng, Yang, et al., 1991 | Peng, Ding, et al., 1988 |
| Comment | MSDC-RI | MSDC-RI | MSDC-RI |
References
Go To: Top, Van Den Dool and Kratz RI, non-polar column, custom temperature program, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Andriamaharavo, 2014
Andriamaharavo, N.R.,
Retention Data. NIST Mass Spectrometry Data Center., NIST Mass Spectrometry Data Center, 2014. [all data]
Tret'yakov, 2008
Tret'yakov, K.V.,
Retention Data. NIST Mass Spectrometry Data Center., NIST Mass Spectrometry Data Center, 2008. [all data]
Andrade, Sampaio, et al., 2007
Andrade, M.S.; Sampaio, T.S.; Nogueira, P.C.L.; Ribeiro, A.S.; Bittrich, V.; Amaral, M.C.E.,
Volatile compounds of the leaves, flowers and fruits of Kielmeyera rugosa Choisy (Clusiaceae),
Flavour Fragr. J., 2007, 22, 1, 49-52, https://doi.org/10.1002/ffj.1751
. [all data]
Passos X.S., Castro A.C.M., et al., 2003
Passos X.S.; Castro A.C.M.; Pires J.S.; Garcia A.C.F.; Campos F.C.; Fernandes O.F.L.; Paula J.R.; Ferreira H.D.; Santos S.C.; Ferri P.H.; Silva M.D.R.,
Composition and antifungal activity of the essential oils of Caryocar brasiliensis,
Pharm. Biol., 2003, 41, 5, 319-324, https://doi.org/10.1076/phbi.41.5.319.15936
. [all data]
Boulanger and Crouzet, 2001
Boulanger, R.; Crouzet, J.,
Identification of the aroma components of acerola (Malphigia glabra L.): free and bound flavor compounds,
Food Chem., 2001, 74, 2, 209-216, https://doi.org/10.1016/S0308-8146(01)00128-5
. [all data]
Peng, 2000
Peng, C.T.,
Prediction of retention indices. V. Influence of electronic effects and column polarity on retention index,
J. Chromatogr. A, 2000, 903, 1-2, 117-143, https://doi.org/10.1016/S0021-9673(00)00901-8
. [all data]
Peng, Yang, et al., 1991
Peng, C.T.; Yang, Z.C.; Maltby, D.,
Prediction of retention indexes. III. Silylated derivatives of polar compounds,
J. Chromatogr., 1991, 586, 1, 113-129, https://doi.org/10.1016/0021-9673(91)80029-G
. [all data]
Peng, Ding, et al., 1988
Peng, C.T.; Ding, S.F.; Hua, R.L.; Yang, Z.C.,
Prediction of Retention Indexes I. Structure-Retention Index Relationship on Apolar Columns,
J. Chromatogr., 1988, 436, 137-172, https://doi.org/10.1016/S0021-9673(00)94575-8
. [all data]
Notes
Go To: Top, Van Den Dool and Kratz RI, non-polar column, custom temperature program, References
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