L-Methionine

• Formula: C₅H₁₁NO₂S
• Molecular weight: 149.211
• IUPAC Standard InChI: InChI=1S/C5H11NO2S/c1-9-3-2-4(6)5(7)8/h4H,2-3,6H2,1H3,(H,7,8)/t4-/m1/s1 Copy

  
• IUPAC Standard InChIKey: FFEARJCKVFRZRR-SCSAIBSYSA-N Copy
• CAS Registry Number: 63-68-3
• Chemical structure:
  This structure is also available as a 2d Mol file
• Stereoisomers:
  • Methionine
  • D-Methionine
  • DL-Methionine
• Other names: Methionine; Methionine, L-; γ-Methylthio-α-aminobutyric acid; Butanoic acid, 2-amino-4-(methylthio)-, (S)-; Cymethion; L-(-)-Methionine; Met; S-Methionine; 2-Amino-4-(methylthio)butyric acid; Butyric acid, 2-amino-4-(methylthio)-; L(-)-Amino-γ-methylthiobutyric acid; L-α-Amino-γ-methylmercaptobutyric acid; L-γ-Methylthio-α-aminobutyric acid; 2-Amino-4-methylthiobutanoic acid; Liquimeth; Acimethin; L-2-Amino-4-(methylthio)butyric acid; (S)-2-Amino-4-(methylthio)butanoic acid; h-Met-oh; L-Homocysteine, S-methyl-; NSC 22946; 2-Amino-4-methylthiobutanoic acid (S)-
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• Information on this page:
  • Phase change data
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Gas phase ion energetics data
  • Mass spectrum (electron ionization)
  • UV/Visible spectrum
• Data at other public NIST sites:
  • X-ray Photoelectron Spectroscopy Database, version 5.0
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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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos

Enthalpy of sublimation

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.

Sabbah and Minadakis, 1981
Sabbah, R.; Minadakis, C., Thermodynamique de substances soufrees. II. Etude thermochimique de la l-cysteine et de la l-methionine, Thermochim. Acta, 1981, 43, 269-277. [all data]

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, 151. [all data]

Notes

Go To: Top, Phase change data, References

• Symbols used in this document:
  

  ΔsubH	Enthalpy of sublimation
  ΔsubH°	Enthalpy of sublimation at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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