dl-Threonine
- Formula: C4H9NO3
- Molecular weight: 119.1192
- IUPAC Standard InChI: InChI=1S/C4H9NO3/c1-2(6)3(5)4(7)8/h2-3,6H,5H2,1H3,(H,7,8)
- IUPAC Standard InChIKey: AYFVYJQAPQTCCC-UHFFFAOYSA-N
- CAS Registry Number: 80-68-2
- Chemical structure:
This structure is also available as a 2d Mol file - Stereoisomers:
- Other names: DL-2-Amino-3-hydroxybutanoic acid; Threonine, DL-
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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 |
|---|---|---|---|---|---|
| ΔcH°solid | -502.27 ± 0.10 | kcal/mol | Ccb | Ponomarev and Migarskaya, 1960 | Reanalyzed by Cox and Pilcher, 1970, Original value = -502.44 ± 0.02 kcal/mol |
Ion clustering 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: Robert C. Dunbar
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.
Clustering reactions
+
= (
•
)
By formula: Na+ + C4H9NO3 = (Na+ • C4H9NO3)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 47.1 | kcal/mol | CIDC | Kish, Ohanessian, et al., 2003 | Anchor alanine=39.89 |
References
Go To: Top, Condensed phase thermochemistry data, Ion clustering data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Ponomarev and Migarskaya, 1960
Ponomarev, V.V.; Migarskaya, L.B.,
Heats of combustion of some amino-acids,
Russ. J. Phys. Chem. (Engl. Transl.), 1960, 34, 1182-1183. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Kish, Ohanessian, et al., 2003
Kish, M.M.; Ohanessian, G.; Wesdemiotis, C.,
The Na+ affinities of a-amino acids: side-chain substituent effects,
Int. J. Mass Spectrom., 2003, 227, 3, 509, https://doi.org/10.1016/S1387-3806(03)00082-4
. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Ion clustering data, References
- Symbols used in this document:
ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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