Chemical Properties of L-Methionine (CAS 63-68-3)

L-Methionine

InChI
InChI=1S/C5H11NO2S/c1-9-3-2-4(6)5(7)8/h4H,2-3,6H2,1H3,(H,7,8)/t4-/m0/s1
InChI Key
FFEARJCKVFRZRR-BYPYZUCNSA-N
Formula
C5H11NO2S
SMILES
CSCC[C@H](N)C(=O)O
Molecular Weight1
149.22
CAS
63-68-3
Other Names
  • (S)-(+)-methionine
  • (S)-2-amino-4-(methylthio)-butanoic acid, ,
  • (S)-2-amino-4-(methylthio)butanoic acid
  • .gamma.-methylthio-.alpha.-aminobutyric acid
  • 2-Amino-4-methylthiobutanoic acid
  • 2-Amino-4-methylthiobutanoic acid (S)-
  • 2-amino-4-(methylthio)butyric acid
  • Acimethin
  • Butanoic acid, 2-amino-4-(methylthio)-, (S)-
  • Butyric acid, 2-amino-4-(methylthio)-
  • Cymethion
  • L(-)-Amino-«gamma»-methylthiobutyric acid
  • L-(-)-methionine
  • L-.alpha.-amino-.gamma.-methylthiobutyric acid
  • L-2-Amino-4-(methylthio)butyric acid
  • L-Homocysteine, S-methyl-
  • L-«alpha»-Amino-«gamma»-methylmercaptobutyric acid
  • L-«gamma»-Methylthio-«alpha»-aminobutyric acid
  • Liquimeth
  • Met
  • Methionine
  • Methionine, L-
  • NSC 22946
  • S-methionine
  • h-Met-oh
  • «gamma»-Methylthio-«alpha»-aminobutyric acid
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Physical Properties

Property Value Unit Source
PAff 935.40 kJ/mol NIST
BasG 901.50 kJ/mol NIST
ΔcH°solid [-3564.11; -3176.00] kJ/mol Show Hide
ΔcH°solid -3564.11 ± 0.61 kJ/mol NIST
ΔcH°solid -3176.00 ± 0.80 kJ/mol NIST
ΔfH°gas -413.50 ± 4.10 kJ/mol NIST
ΔfH°solid -577.50 ± 0.70 kJ/mol NIST
ΔfusH° 24.65 kJ/mol Joback Calculated Property
ΔsubH° [164.00; 164.00] kJ/mol Show Hide
ΔsubH° 164.00 ± 4.00 kJ/mol NIST
ΔsubH° 164.00 ± 4.00 kJ/mol NIST
IE [8.30; 9.00] eV Show Hide
IE 8.30 eV NIST
IE 8.63 ± 0.10 eV NIST
IE 9.00 eV NIST
IE 8.65 eV NIST
log10WS -0.34 Relay (1.0) Calculated Property
logPoct/wat 0.151 Crippen Calculated Property
McVol 115.080 ml/mol McGowan Calculated Property
Tfus 553.90 K Jean-Claude Bradley Open Melting Point Dataset (2014, CC0) Compiled value

Cheméo can also estimate Normal Boiling Point Temperature, Critical Temperature, Critical Pressure, Critical Volume, Enthalpy of vaporization at standard conditions, Standard Gibbs free energy of formation, Acentric Factor for this compound, but they fall outside the models' validated range, so they are not shown here. Open the prediction tool to compute them on demand.

Temperature Dependent Properties

Property Value Unit Temperature (K) Source
ΔsubH [125.00; 125.00] kJ/mol [455.00; 474.00] Show Hide
ΔsubH 125.00 ± 0.80 kJ/mol 455.00 NIST
ΔsubH 125.00 kJ/mol 474.00 NIST
ΔvapH 139.00 kJ/mol 437.00 Enthalpies of sublimation of L-methionine and DL-methionine: Knudsen's effusion mass spectrometric study

Correlations

Property Value Unit Temperature (K) Source
Cp,gas [165.73; 351.16] J/mol×K [273.00; 1000.00] Joback Predicted correlation Show Hide
EquationY = A + B·T + C·T² + D·T³ + E·T⁴
Y is Cp,gas in J/mol×K, T in K
Coefficient A2.73520e+01
Coefficient B5.91810e-01
Coefficient C-3.27200e-04
Coefficient D5.92000e-08
Coefficient E0.00000e+00
Temperature range, min.273.00
Temperature range, max.1000.00
Cp,gas 165.73 J/mol×K 273.00 Calculated Property
Cp,gas 198.39 J/mol×K 353.78 Calculated Property
Cp,gas 227.60 J/mol×K 434.56 Calculated Property
Cp,gas 253.54 J/mol×K 515.33 Calculated Property
Cp,gas 276.41 J/mol×K 596.11 Calculated Property
Cp,gas 296.39 J/mol×K 676.89 Calculated Property
Cp,gas 313.66 J/mol×K 757.67 Calculated Property
Cp,gas 328.43 J/mol×K 838.44 Calculated Property
Cp,gas 340.86 J/mol×K 919.22 Calculated Property
Cp,gas 351.16 J/mol×K 1000.00 Calculated Property
Property Value Unit Temperature (K) Source
Pvap [1.33; 202.66] kPa [559.55; 688.22] The Yaws Handbook of Vapor Pressure Show Hide
Equationln(Y) = A + B/(T + C)
Y is Pvap in kPa, T in K
Coefficient A2.71590e+01
Coefficient B-1.50359e+04
Coefficient C0.00000e+00
Temperature range, min.559.55
Temperature range, max.688.22
Pvap 1.33 kPa 559.55 Calculated Property
Pvap 2.60 kPa 573.85 Calculated Property
Pvap 4.92 kPa 588.14 Calculated Property
Pvap 9.03 kPa 602.44 Calculated Property
Pvap 16.11 kPa 616.74 Calculated Property
Pvap 27.98 kPa 631.03 Calculated Property
Pvap 47.44 kPa 645.33 Calculated Property
Pvap 78.61 kPa 659.63 Calculated Property
Pvap 127.49 kPa 673.92 Calculated Property
Pvap 202.66 kPa 688.22 Calculated Property

Similar Compounds

DL-Methionine. D-Methionine. DL-Homocysteine, S-ethyl-. Methionine. L-Methionine, methyl ester. d3-Methionine, mono-TMS. L-Methionine, trimethylsilyl ester. L-Methionine, N-acetyl-. l-Methionine, tert-butyldimethylsilyl ester. l-Methionine, N-pivaloyl-, methyl ester. L-Methionine, N-(trifluoroacetyl)-, trimethylsilyl ester. d3-Methionine, di-TMS. L-Methionine, N-(trimethylsilyl)-, trimethylsilyl ester. DL-Methionine, N-acetyl-, ethyl ester. methionine, trifluoroacetyl-isopropyl ester.

Find more compounds similar to L-Methionine.

Mixtures

Sources

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