α-Tocopheryl acetate
- Formula: C31H52O3
- Molecular weight: 472.7428
- IUPAC Standard InChIKey: ZAKOWWREFLAJOT-BVXAZASISA-N
- CAS Registry Number: 58-95-7
- 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: 2H-1-Benzopyran-6-ol, 3,4-dihydro-2,5,7,8-tetramethyl-2-(4,8,12-trimethyltridecyl)-, acetate, [2R-[2R*(4R*,8R*)]]-; Vitamin E acetate; 6-Chromanol, 2,5,7,8-tetramethyl-2-(4,8,12-trimethyltridecyl)-, acetate, (+)-; α-Tocopherol acetate; (+)-α-Tocopherol acetate; (+)-α-Tocopheryl acetate; D-α-tocopherol acetate; D-α-tocopheryl acetate; Alfacol; Combinal E; Contopheron; E-Ferol; E-Toplex; Ecofrol; Econ; Endo E Dompe; Ephynal acetate; Epsilan-M; Erevit; Evipherol; Fertilvit; Gevex; Juvela; Tocopherex; Tocophrin; Tofaxin; Tokoferol acetate; [2R-[2R*(4R,8R*)]]-3,4-Dihydro-2,5,7,8-tetramethyl-2-(4,8,12-trimethyltridecyl)-2H-1-benzopyran-6-ol acetate; d-Vitamin E acetate; E-vicotrat; Spondyvit; (2R,4'R,8'R)-α-Tocopheryl acetate; (R,R,R)-α-Tocopheryl acetate; Copherol 1250; Covitol 1100; Covitol 1360; Tocopheryl acetate; Vitamin Ealpha acetate
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Condensed phase thermochemistry data
Go To: Top, Phase change data, 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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°liquid | -261.7 ± 1.8 | kcal/mol | Ccb | Gerasimov, Gubareva, et al., 1985 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -4430.1 ± 1.8 | kcal/mol | Ccb | Gerasimov, Gubareva, et al., 1985 | Corresponding ΔfHºliquid = -261.66 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
Constant pressure heat capacity of solid
Cp,solid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
215. | 293.75 | Baglay, Gurariy, et al., 1988 | T = 273 to 334 K. Unsmoothed experimental datum.; DH |
Phase change data
Go To: Top, Condensed phase thermochemistry data, 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: William E. Acree, Jr., James S. Chickos
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
14.4 ± 0.31 | 496. | Baglay, Gurariy, et al., 1988 | Based on data from 466. to 524. K. |
Mass spectrum (electron ionization)
Go To: Top, Condensed phase thermochemistry data, Phase change data, 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
Spectrum
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Additional Data
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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 | Patti Price, Georgia Bureau of Investigation, Decatur, Georgia |
NIST MS number | 248909 |
Gas Chromatography
Go To: Top, Condensed phase thermochemistry data, Phase change data, 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, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Ultra-1 | 3131. | Tokuda, Saitoh, et al., 1988 | 12.5 m/0.20 mm/0.11 μm, He, 5. K/min, 325. C @ 5. min; Tstart: 120. C |
Capillary | Ultra-1 | 3132. | Tokuda, Saitoh, et al., 1988 | 12.5 m/0.20 mm/0.11 μm, He, 5. K/min, 325. C @ 5. min; Tstart: 120. C |
References
Go To: Top, Condensed phase thermochemistry data, Phase change data, 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.
Gerasimov, Gubareva, et al., 1985
Gerasimov, P.A.; Gubareva, A.I.; Blokh, E.L.; Cherkasova, T.G.,
Physicochemical properties of α-tocopherol acetate,
Khim.-Farm. Zh., 1985, 19, 1274-1276. [all data]
Baglay, Gurariy, et al., 1988
Baglay, A.K.; Gurariy, L.L.; Kuleshov, G.G.,
Physical properties of compounds used in vitamin synthesis,
J. Chem. Eng. Data, 1988, 33, 512-518. [all data]
Tokuda, Saitoh, et al., 1988
Tokuda, H.; Saitoh, E.; Kimura, Y.; Takano, S.,
Automated analysis of various compounds with a wide range of boiling points by capillary gas chromatgraphy based on retention indices,
J. Chromatogr., 1988, 454, 109-120, https://doi.org/10.1016/S0021-9673(00)88606-9
. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), Gas Chromatography, References
- Symbols used in this document:
Cp,solid Constant pressure heat capacity of solid ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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