Phenylalanine
- Formula: C9H11NO2
- Molecular weight: 165.1891
- IUPAC Standard InChIKey: COLNVLDHVKWLRT-MRVPVSSYSA-N
- CAS Registry Number: 63-91-2
- 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: L-Phenylalanine; Alanine, phenyl-, L-; α-Amino-β-phenylpropionic acid; α-Aminohydrocinnamic acid; β-Phenyl-α-alanine; β-Phenyl-L-alanine; β-Phenylalanine; (-)-β-Phenylalanine; (S)-Phenylalanine; Antibiotic FN 1636; Benzenepropanoic acid, α-amino-, (S)-; L-Antibiotic FN 1636; Phenyl-α-alanine; 3-Phenyl-L-alanine; 3-Phenylalanine; β-Phenyl-α-alanine, L-; Alanine, phenyl-; Alanine, 3-phenyl-; Hydrocinnamic acid, α-amino-; L-β-Phenylalanine; L-Alanine, phenyl-; (S)-α-Aminobenzenepropanoic acid; PAL; (S)-2-Amino-3-phenylpropanoic acid; (S)-2-Amino-3-phenylpropionic acid; L-Alanine, 3-phenyl-; NSC 79477; (-)-Phenylalanine
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Condensed phase thermochemistry data
Go To: Top, 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 |
---|---|---|---|---|---|
ΔcH°solid | -1110.5 ± 0.2 | kcal/mol | Ccb | Tsuzuki, Harper, et al., 1958 | ALS |
ΔcH°solid | -1115.5 | kcal/mol | Ccb | Lemoult, 1904 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°solid,1 bar | 51.061 | cal/mol*K | N/A | Cole, Hutchens, et al., 1963 | DH |
Constant pressure heat capacity of solid
Cp,solid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
48.54 | 298.15 | Spink and Wads, 1975 | DH |
48.521 | 298.15 | Cole, Hutchens, et al., 1963 | T = 11 to 305 K.; DH |
References
Go To: Top, Condensed phase thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Tsuzuki, Harper, et al., 1958
Tsuzuki, T.; Harper, D.O.; Hunt, H.,
Heats of combustion. VII. The heats of combustion of some amino acids,
J. Phys. Chem., 1958, 62, 1594-1595. [all data]
Lemoult, 1904
Lemoult, M.P.,
Remarques sur une serie recenie de determinations calorimetriques,
Compt. Rend., 1904, 663-635. [all data]
Cole, Hutchens, et al., 1963
Cole, A.G.; Hutchens, J.O.; Stout, J.W.,
Heat capacities from 11 to 305°K. and entropies of L-phenylalanine, L-proline, L-tryptophane, and L-tyrosine. Some free energies of formation,
J. Phys. Chem., 1963, 67, 1852-1855. [all data]
Spink and Wads, 1975
Spink, C.H.; Wads, I.,
Thermochemistry of solutions of biochemical model compounds. 4. The partial molar heat capacities of some amino acids in aqueous solution,
J. Chem. Thermodynam., 1975, 7, 561-572. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, References
- Symbols used in this document:
Cp,solid Constant pressure heat capacity of solid S°solid,1 bar Entropy of solid at standard conditions (1 bar) ΔcH°solid Enthalpy of combustion of solid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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