α-Aminoisobutanoic acid
- Formula: C4H9NO2
- Molecular weight: 103.1198
- IUPAC Standard InChI: InChI=1S/C4H9NO2/c1-4(2,5)3(6)7/h5H2,1-2H3,(H,6,7)
- IUPAC Standard InChIKey: FUOOLUPWFVMBKG-UHFFFAOYSA-N
- CAS Registry Number: 62-57-7
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Alanine, 2-methyl-; α-Aminoisobutyric acid; α-Methylalanine; α,α-Dimethylglycine; AIB; Propionic acid, 2-amino-2-methyl-; 2-Amino-2-methylpropanoic acid; 2-Aminoisobutyric acid; 2-Methylalanine; Propanoic acid, 2-amino-2-methyl-; 2-Amino-2-methylpropionic acid; NSC 16590
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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 by: William E. Acree, Jr., James S. Chickos
Enthalpy of sublimation
| ΔsubH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 125.8 | 450.5 | A | Stephenson and Malanowski, 1987 | Based on data from 439. to 462. K. |
| 134.2 | 413.5 | A | Stephenson and Malanowski, 1987 | Based on data from 403. to 424. K. |
| 129.5 ± 0.4 | 455. | ME | Svec and Clyde, 1965 | See also Clyde and Svec, 1964. |
References
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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]
Svec and Clyde, 1965
Svec, H.J.; Clyde, D.D.,
Vapor Pressures of Some α-Amino Acids.,
J. Chem. Eng. Data, 1965, 10, 2, 151-152, https://doi.org/10.1021/je60025a024
. [all data]
Clyde and Svec, 1964
Clyde, D.D.; Svec, H.,
, U. S. Atomic Energy Comm. IS-790, 1964, 1. [all data]
Notes
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- Symbols used in this document:
ΔsubH Enthalpy of sublimation - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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