9,12,15-Octadecatrienoic acid, methyl ester, (Z,Z,Z)-
- Formula: C19H32O2
- Molecular weight: 292.4562
- IUPAC Standard InChIKey: DVWSXZIHSUZZKJ-YSTUJMKBSA-N
- CAS Registry Number: 301-00-8
- 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. - Stereoisomers:
- Other names: Linolenic acid, methyl ester; Methyl all-cis-9,12,15-octadecatrienoate; Methyl linolenate; cis,cis,cis-9,12,15-Octadecatrienoic acid, methyl ester; Methyl α-linolenate; Methyl linolenate, α; (Z,Z,Z)-9,12,15-Octadecatrienoic acid, methyl ester; [Z,Z,Z]-9,12,15-Octadecadienoic acid methyl ester; methyl (9Z,12Z,15Z)-9,12,15-octadecatrienoate
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Condensed phase thermochemistry 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°liquid | -117.77 | kcal/mol | Chyd | Rogers and Siddiqui, 1975 | |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -2750.00 ± 0.37 | kcal/mol | Ccb | Freedman, Bagby, et al., 1989 | Corresponding ΔfHºliquid = -130.01 kcal/mol (simple calculation by NIST; no Washburn corrections) |
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
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔvapH° | 26.4 ± 0.1 | kcal/mol | CGC | Lipkind, Kapustin, et al., 2007 | AC |
ΔvapH° | 24.40 | kcal/mol | GC | Krop, Velzen, et al., 1997 | Based on data from 423. to 503. K.; AC |
Reduced pressure boiling point
Tboil (K) | Pressure (atm) | Reference | Comment |
---|---|---|---|
455.2 | 0.004 | Weast and Grasselli, 1989 | BS |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
21.0 | 409. | A,MG,OM | Stephenson and Malanowski, 1987 | Based on data from 394. to 459. K. See also Scott, Macmillan, et al., 1952.; AC |
Reaction thermochemistry 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
By formula: 3H2 + C19H32O2 = C19H38O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -85.40 ± 0.58 | kcal/mol | Chyd | Rogers and Siddiqui, 1975 | liquid phase; solvent: n-Hexane |
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: Coblentz Society, Inc.
Condensed Phase Spectrum
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Notice: Except where noted, spectra from this collection were measured on dispersive instruments, often in carefully selected solvents, and hence may differ in detail from measurements on FTIR instruments or in other chemical environments. More information on the manner in which spectra in this collection were collected can be found here.
Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.
Additional Data
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Owner | COBLENTZ SOCIETY Collection (C) 2018 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | DOW CHEMICAL COMPANY |
Source reference | COBLENTZ NO. 2356 |
Date | Not specified, most likely prior to 1970 |
Name(s) | methyl (9Z,12Z,15Z)-9,12,15-octadecatrienoate |
State | SOLUTION (10% CCl4 FOR 5000-1330, 10% CS2 FOR 1330-625 CM-1) |
Instrument | Not specified, most likely a prism, grating, or hybrid spectrometer. |
Path length | 0.011 CM, 0.011 CM |
Resolution | 4 |
Sampling procedure | TRANSMISSION |
Data processing | DIGITIZED BY NIST FROM HARD COPY |
Mass spectrum (electron ionization)
Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, IR Spectrum, 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
Spectrum
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Additional Data
View image of digitized spectrum (can be printed in landscape orientation).
Due to licensing restrictions, this spectrum cannot be downloaded.
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 |
NIST MS number | 333199 |
References
Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Rogers and Siddiqui, 1975
Rogers, D.W.; Siddiqui, N.A.,
Heats of hydrogenation of large molecules. I. Esters of unsaturated fatty acids,
J. Phys. Chem., 1975, 79, 574-577. [all data]
Freedman, Bagby, et al., 1989
Freedman, B.; Bagby, M.O.; Khoury, H.,
Correlation of heats of combustion with empirical formulas for fatty alcohols,
J. Am. Oil Chem. Soc., 1989, 66, 595-596. [all data]
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]
Krop, Velzen, et al., 1997
Krop, Hildo B.; Velzen, Martin J.M.v.; Parsons, John R.; Govers, Harrie A.J.,
Determination of environmentally relevant physical-chemical properties of some fatty acid esters,
J Amer Oil Chem Soc, 1997, 74, 3, 309-315, https://doi.org/10.1007/s11746-997-0142-9
. [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]
Scott, Macmillan, et al., 1952
Scott, T.A., Jr.; Macmillan, D.; Melvin, E.H.,
Vapor pressures and distillation of methyl esters of some fatty acids,
Ind. Eng. Chem., 1952, 44, 172-175. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), References
- Symbols used in this document:
Tboil Boiling point ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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