Chemical Properties of DL-Methionine (CAS 59-51-8)

InChI

InChI=1S/C5H11NO2S/c1-9-3-2-4(6)5(7)8/h4H,2-3,6H2,1H3,(H,7,8)

InChI Key

FFEARJCKVFRZRR-UHFFFAOYSA-N

Formula

C5H11NO2S

SMILES

CSCCC(N)C(=O)O

Molecular Weight¹

149.21

CAS

59-51-8

Other Names

• (.+-.)-methionine
• (.+/-.)-Methionine
• .alpha.-amino-.gamma.-methylmercaptobutyric acid
• 2-Amino-4-(methylmercapto)butyric acid
• Amurex
• Banthionine
• DL-2-amino-4-(methylthio)butanoic acid
• DL-2-amino-4-(methylthio)butyric acid
• DL-CH3SCH2CH2CH(NH2)COOH
• Dyprin
• Lobamine
• Mertionin
• Methilonin
• Methionine
• Methionine dl-form
• Metion
• NSC 9241
• Pedameth
• Petameth
• Racemethionine
• Urimeth
• acimetion
• butanoic acid, 2-amino-4-(methylthio)-, DL-
• cynaron
• homocysteine, S-methyl-
• meonine
• methilanin
• methionine, DL-
• metione
• neston
• «alpha»-Amino-«gamma»-methylmercaptobutyric acid

• C_p,gas : Ideal gas heat capacity (J/mol×K).
• C_p,solid : Solid phase heat capacity (J/mol×K).
• Δ_fH°_gas : Enthalpy of formation at standard conditions (kJ/mol).
• Δ_fusH° : Enthalpy of fusion at standard conditions (kJ/mol).
• Δ_vapH : Enthalpy of vaporization at a given temperature (kJ/mol).
• IE : Ionization energy (eV).
• log₁₀WS : Log10 of Water solubility in mol/l.
• logP_oct/wat : Octanol/Water partition coefficient.
• McVol : McGowan's characteristic volume (ml/mol).
• S°_{solid,1 bar} : Solid phase molar entropy at standard conditions (J/mol×K).
• T_fus : Normal melting (fusion) point (K).
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

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
Cp,gas	[277.53; 326.19]	J/mol×K	[600.38; 825.30]
Cp,gas	277.53	J/mol×K	600.38	Joback Calculated Property
Cp,gas	287.08	J/mol×K	637.87	Joback Calculated Property
Cp,gas	296.03	J/mol×K	675.35	Joback Calculated Property
Cp,gas	304.40	J/mol×K	712.84	Joback Calculated Property
Cp,gas	312.20	J/mol×K	750.33	Joback Calculated Property
Cp,gas	319.46	J/mol×K	787.82	Joback Calculated Property
Cp,gas	326.19	J/mol×K	825.30	Joback Calculated Property
Cp,solid	290.03	J/mol×K	298.15	NIST
ΔvapH	134.00	kJ/mol	423.00	Enthalpies of sublimation of L-methionine and DL-methionine: Knudsen's effusion mass spectrometric study

Similar Compounds

Find more compounds similar to DL-Methionine.

Mixtures

• DL-Methionine + Water

Sources

• Cheméo Relay (1.0)
• Cheméo Relay (1.0, beta) Beta: served but experimental, data-limited and below our cross-validation release bar; the Joback value is recommended where available.
• Crippen Method
• Crippen Method
• Enthalpies of sublimation of L-methionine and DL-methionine: Knudsen's effusion mass spectrometric study
• Solubility and Metastable Zone Width of the Methionine Enantiomers and Their Mixtures in Water
• Joback Method
• McGowan Method
• NIST Webbook

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