Record Information
Version 1.0
Update Date 1/22/2018 12:54:54 PM
Metabolite IDPAMDB120267
Identification
Name: N-α-acetyl-L-methionine
Description:An L-α-amino acid anion that is the conjugate base of N-acetyl-L-methionine, obtained by deprotonation of the carboxy group.
Structure
Thumb
Synonyms:
  • acetyl-L-methioninate
  • acetylmethioninate
  • AcMet(1−)
  • N-Ac-Met(1−)
  • N-acetyl-L-methioninate
  • N-acetylmethioninate
  • Nα-acetyl-L-methioninate
  • Nα-acetyl-L-methionine
  • Nα-acetyl-L-methionine(1−)
Chemical Formula: C7H12NO3S
Average Molecular Weight: 190.237
Monoisotopic Molecular Weight: 191.06161
InChI Key: XUYPXLNMDZIRQH-LURJTMIESA-M
InChI:InChI=1S/C7H13NO3S/c1-5(9)8-6(7(10)11)3-4-12-2/h6H,3-4H2,1-2H3,(H,8,9)(H,10,11)/p-1/t6-/m0/s1
CAS number: 65-82-7
IUPAC Name:(2S)-2-acetamido-4-(methylsulfanyl)butanoate
Traditional IUPAC Name: acetyl-DL-methionine
SMILES:CC(=O)NC(CCSC)C([O-])=O
Chemical Taxonomy
Taxonomy DescriptionThis compound belongs to the class of chemical entities known as methionine and derivatives. These are compounds containing methionine or a derivative thereof resulting from reaction of methionine at the amino group or the carboxy group, or from the replacement of any hydrogen of glycine by a heteroatom.
Kingdom Chemical entities
Super ClassOrganic compounds
Class Organic acids and derivatives
Sub ClassCarboxylic acids and derivatives
Direct Parent Methionine and derivatives
Alternative Parents
Substituents
  • Methionine or derivatives
  • N-acyl-alpha-amino acid
  • N-acyl-alpha amino acid or derivatives
  • Thia fatty acid
  • Fatty acid
  • Fatty acyl
  • Acetamide
  • Carboxamide group
  • Secondary carboxylic acid amide
  • Dialkylthioether
  • Sulfenyl compound
  • Thioether
  • Monocarboxylic acid or derivatives
  • Carboxylic acid
  • Organic oxide
  • Organopnictogen compound
  • Organosulfur compound
  • Organooxygen compound
  • Organonitrogen compound
  • Carbonyl group
  • Organic oxygen compound
  • Hydrocarbon derivative
  • Organic nitrogen compound
  • Aliphatic acyclic compound
Molecular Framework Aliphatic acyclic compounds
External Descriptors
Physical Properties
State: Solid
Charge:-1
Melting point: 105.5 °C
Experimental Properties:
PropertyValueReference
Melting Point105.5 °CNot Available
Boiling PointNot AvailableNot Available
Water Solubility307mg/mL at 25 °CNot Available
LogP-0.03MEYLAN,WM & HOWARD,PH (1995)
Predicted Properties
PropertyValueSource
Water Solubility6.84 mg/mLALOGPS
logP-0.15ALOGPS
logP-0.11ChemAxon
logS-1.4ALOGPS
pKa (Strongest Acidic)4.02ChemAxon
pKa (Strongest Basic)-1.2ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area66.4 Å2ChemAxon
Rotatable Bond Count5ChemAxon
Refractivity47.03 m3·mol-1ChemAxon
Polarizability19.59 Å3ChemAxon
Number of Rings0ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Biological Properties
Cellular Locations: Not Available
Reactions:
Pathways:
    Spectra
    Spectra:
    Spectrum TypeDescriptionSplash Key
    LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 10V, Positive (Annotated)splash10-006x-0900000000-e657a0db51c30ae3be19View in MoNA
    LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 25V, Positive (Annotated)splash10-0udl-1900000000-f56fad3e53b5ea9b2ecbView in MoNA
    LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 40V, Positive (Annotated)splash10-0002-9300000000-8202aca0e38266373acbView in MoNA
    1D NMR1H NMR SpectrumNot Available
    2D NMR[1H,13C] 2D NMR SpectrumNot Available
    References
    References:
    • Ball RO, Courtney-Martin G, Pencharz PB: The in vivo sparing of methionine by cysteine in sulfur amino acid requirements in animal models and adult humans. J Nutr. 2006 Jun;136(6 Suppl):1682S-1693S. [16702340 ]
    • van de Poll MC, Dejong CH, Soeters PB: Adequate range for sulfur-containing amino acids and biomarkers for their excess: lessons from enteral and parenteral nutrition. J Nutr. 2006 Jun;136(6 Suppl):1694S-1700S. [16702341 ]
    • Garlick PJ: Toxicity of methionine in humans. J Nutr. 2006 Jun;136(6 Suppl):1722S-1725S. [16702346 ]
    Synthesis Reference: Not Available
    Material Safety Data Sheet (MSDS) Download (PDF)
    External Links:
    ResourceLink
    CHEBI71670
    HMDBHMDB11745
    DRUGBANKDB01646
    CHEMSPIDER395338
    LIGAND-CPDC02712
    PUBCHEM448580