L-Glutamic acid
- Formula: C5H9NO4
- Molecular weight: 147.1293
- IUPAC Standard InChI: InChI=1S/C5H9NO4/c6-3(5(9)10)1-2-4(7)8/h3H,1-2,6H2,(H,7,8)(H,9,10)/t3-/m1/s1
- IUPAC Standard InChIKey: WHUUTDBJXJRKMK-GSVOUGTGSA-N
- CAS Registry Number: 56-86-0
- Chemical structure:
This structure is also available as a 2d Mol file - Species with the same structure:
- Stereoisomers:
- Other names: Glutamic acid, L-; α-Aminoglutaric acid; α-Glutamic acid; (S)-(+)-Glutamic acid; Aciglut; Glusate; Glutacid; Glutamic acid; Glutamicol; Glutamidex; Glutaminic acid; Glutaton; L-(+)-Glutamic acid; L-Glutaminic acid; Pentanedioic acid, 2-amino-, (S)-; 1-Aminopropane-1,3-dicarboxylic acid; 2-Aminopentanedioic acid; L-2-aminoglutaric acid; (S)-Glutamic acid; D-Glutamiensuur; (S)-2-Aminopentanedioic acid; 2-Aminoglutaric acid; (2S)-2-Aminopentanedioic acid; Glutaminol; L (+)-glutamic acid, alpha-form; NSC 143503
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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 |
|---|---|---|---|---|---|
| ΔfH°solid | -239.80 ± 0.28 | kcal/mol | Ccr | Sakiyama and Seki, 1975 | ALS |
| ΔfH°solid | -240.26 ± 0.29 | kcal/mol | Ccb | Huffman, Ellis, et al., 1936 | Reanalyzed by Cox and Pilcher, 1970, Original value = -241.30 kcal/mol; ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°solid | -537.88 ± 0.22 | kcal/mol | Ccr | Sakiyama and Seki, 1975 | ALS |
| ΔcH°solid | -536.35 ± 0.18 | kcal/mol | Ccb | Tsuzuki and Hunt, 1957 | Reanalyzed by Cox and Pilcher, 1970, Original value = -537.01 ± 0.18 kcal/mol; ALS |
| ΔcH°solid | -537.41 ± 0.28 | kcal/mol | Ccb | Huffman, Ellis, et al., 1936 | Reanalyzed by Cox and Pilcher, 1970, Original value = -537.31 ± 0.28 kcal/mol; ALS |
| ΔcH°solid | -538.58 | kcal/mol | Ccb | Emery and Benedict, 1911 | ALS |
| ΔcH°solid | -543.91 | kcal/mol | Ccb | Lemoult, 1904 | ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| S°solid,1 bar | 44.981 | cal/mol*K | N/A | Hutchens, Cole, et al., 1963 | DH |
Constant pressure heat capacity of solid
| Cp,solid (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 41.845 | 298. | Sakiyama and Seki, 1975 | Cp given as 1.19 J/g*K.; DH |
| 41.840 | 298.15 | Hutchens, Cole, et al., 1963 | T = 10 to 310 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.
Sakiyama and Seki, 1975
Sakiyama, M.; Seki, S.,
Enthalpies of combustion of organic compounds. II. L- and D-glutamic acid,
Bull. Chem. Soc. Jpn., 1975, 48, 2203-2204. [all data]
Huffman, Ellis, et al., 1936
Huffman, H.M.; Ellis, E.L.; Fox, S.W.,
Thermal data. VI. The heats of combustion and free energies of seven organic compounds containing nitrogen,
J. Am. Chem. Soc., 1936, 58, 1728-1733. [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]
Tsuzuki and Hunt, 1957
Tsuzuki, T.; Hunt, H.,
Heats of combustion. VI. The heats of combustion of some amino acids,
J. Phys. Chem., 1957, 61, 1668. [all data]
Emery and Benedict, 1911
Emery, A.G.; Benedict, F.G.,
The heat of combustion of compounds of physiological importance,
Am. J. Physiol., 1911, 28, 301-307. [all data]
Lemoult, 1904
Lemoult, M.P.,
Remarques sur une serie recenie de determinations calorimetriques,
Compt. Rend., 1904, 663-635. [all data]
Hutchens, Cole, et al., 1963
Hutchens, J.O.; Cole, A.G.; Robie, R.A.; Stout, J.W.,
Heat capacities from 11 to 305 K, entropies, and free energies of formation of L-aspartic acid, L-glutamic acid, and L-glutamine,
J. Biol. Chem., 1963, 238, 2407-2412. [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 ΔfH°solid Enthalpy of formation of solid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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