5,8,11,14-Eicosatetraenoic acid, methyl ester, (all-Z)-
- Formula: C21H34O2
- Molecular weight: 318.4935
- IUPAC Standard InChI: InChI=1S/C21H34O2/c1-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21(22)23-2/h7-8,10-11,13-14,16-17H,3-6,9,12,15,18-20H2,1-2H3/b8-7-,11-10-,14-13-,17-16-
- IUPAC Standard InChIKey: OFIDNKMQBYGNIW-ZKWNWVNESA-N
- CAS Registry Number: 2566-89-4
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Arachidonic acid methyl ester; Methyl all-cis-5,8,11,14-eicosatetraenoate; Methyl arachidonate; 5,8,11,14-Eicosatetraenoic acid, methyl ester, cis-; cis-5,8,11,14-Eicosatetraenoic acid, methyl ester; 5,8,11,14-Eicosatetraenoic acid, methyl ester; methyl (5Z,8Z,11Z,14Z)-icosa-5,8,11,14-tetraenoate; Methyl Z,Z,Z,Z 5,8,11,14-eicosatetraeneoate
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Phase change data
Go To: Top, 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: William E. Acree, Jr., James S. Chickos
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔvapH° | 118.3 | kJ/mol | CGC | Lipkind, Kapustin, et al., 2007 | |
| ΔvapH° | 122.6 ± 1.6 | kJ/mol | CGC | Lipkind, Kapustin, et al., 2007 |
Gas Chromatography
Go To: Top, Phase change data, 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
Kovats' RI, non-polar column, isothermal
| Column type | Active phase | Temperature (C) | I | Reference | Comment |
|---|---|---|---|---|---|
| Packed | SE-30 | 200. | 2231. | Golovnya and Kuzmenko, 1977 | He, Chromosorb W (80-100 mesh); Column length: 1.5 m |
| Packed | SE-30 | 200. | 2231. | Golovnya, Uralets, et al., 1976 | Gas Chrom Q (80-100 mesh); Column length: 1.5 m |
Van Den Dool and Kratz RI, non-polar column, custom temperature program
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | VF-5MS | 2274.4 | Tret'yakov, 2007 | 30. m/0.25 mm/0.25 μm, He; Program: Multi-step temperature program; T(initial)=60C; T(final)=270C |
References
Go To: Top, Phase change data, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Lipkind, Kapustin, et al., 2007
Lipkind, Dmitry; Kapustin, Yaroslav; Umnahanant, Patamaporn; Chickos, James S.,
The vaporization enthalpies and vapor pressures of a series of unsaturated fatty acid methyl esters by correlation gas chromatography,
Thermochimica Acta, 2007, 456, 2, 94-101, https://doi.org/10.1016/j.tca.2007.02.008
. [all data]
Golovnya and Kuzmenko, 1977
Golovnya, R.V.; Kuzmenko, T.E.,
Thermodynamic evaluation of the interaction of fatty acid methyl esters with polar and non-polar stationary phases, based on their retention indices,
Chromatographia, 1977, 10, 9, 545-548, https://doi.org/10.1007/BF02262915
. [all data]
Golovnya, Uralets, et al., 1976
Golovnya, R.V.; Uralets, V.P.; Kuzmenko, T.E.,
Characterization of fatty acid methyl esters by gas chromatography on siloxane liquid phases,
J. Chromatogr., 1976, 121, 1, 118-121, https://doi.org/10.1016/S0021-9673(00)82312-2
. [all data]
Tret'yakov, 2007
Tret'yakov, K.V.,
Retention Data. NIST Mass Spectrometry Data Center., NIST Mass Spectrometry Data Center, 2007. [all data]
Notes
Go To: Top, Phase change data, Gas Chromatography, References
- Symbols used in this document:
ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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