Record Information
Version1.0
Creation date2020-04-20 20:01:26 UTC
Update date2020-09-17 15:38:41 UTC
Primary IDFDB112371
Secondary Accession NumbersNot Available
Chemical Information
FooDB NameHomocysteine (metabolite of methionine)
DescriptionHomocysteine, also known as Hcy or homo-cys, belongs to the class of organic compounds known as l-alpha-amino acids. These are alpha amino acids which have the L-configuration of the alpha-carbon atom. A homocysteine that has L configuration. Homocysteine is a very strong basic compound (based on its pKa). Homocysteine exists in all living species, ranging from bacteria to humans. Homocysteine is a potentially toxic compound.
CAS NumberNot Available
Structure
Thumb
Synonyms
SynonymSource
HcyChEBI
L-2-Amino-4-mercaptobutyric acidChEBI
L-2-Amino-4-mercaptobutyrateGenerator
2-Amino-4-mercaptobutyric acidHMDB
Homocysteine, L isomerHMDB
L-Isomer homocysteineHMDB
2 Amino 4 mercaptobutyric acidHMDB
Homocysteine, L-isomerHMDB
(S)-2-Amino-4-mercapto-butanoateHMDB
(S)-2-Amino-4-mercapto-butanoic acidHMDB
(S)-2-Amino-4-mercaptobutanoic acidHMDB
(S)-HomocysteineHMDB
2-Amino-4-mercapto-DL-butyrateHMDB
2-Amino-4-mercapto-DL-butyric acidHMDB
2-Amino-4-mercapto-L-butyric acidHMDB
2-Amino-4-mercapto-butanoateHMDB
2-Amino-4-mercapto-butanoic acidHMDB
2-Amino-4-mercapto-butyric acidHMDB
2-Amino-4-sulfanylbutanoateHMDB
2-Amino-4-sulfanylbutanoic acidHMDB
D,L-HomocysteineHMDB
DL-2-Amino-4-mercapto-butyric acidHMDB
DL-2-Amino-4-mercaptobutyric acidHMDB
DL-HomocysteineHMDB
Homo-cysHMDB
L-2-Amino-4-mercapto-butyric acidHMDB
L-HomocysteineHMDB
2-Amino-4-mercapto-butyrateHMDB
HomocysteineMeSH, KEGG
Predicted Properties
PropertyValueSource
Water Solubility14.8 g/LALOGPS
logP-2.3ALOGPS
logP-2.6ChemAxon
logS-0.96ALOGPS
pKa (Strongest Acidic)2.46ChemAxon
pKa (Strongest Basic)9.41ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area63.32 ŲChemAxon
Rotatable Bond Count3ChemAxon
Refractivity32.94 m³·mol⁻¹ChemAxon
Polarizability13.54 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Chemical FormulaC4H9NO2S
IUPAC name(2S)-2-amino-4-sulfanylbutanoic acid
InChI IdentifierInChI=1S/C4H9NO2S/c5-3(1-2-8)4(6)7/h3,8H,1-2,5H2,(H,6,7)/t3-/m0/s1
InChI KeyFFFHZYDWPBMWHY-VKHMYHEASA-N
Isomeric SMILESN[C@@H](CCS)C(O)=O
Average Molecular Weight135.185
Monoisotopic Molecular Weight135.035399227
Classification
Description Belongs to the class of organic compounds known as l-alpha-amino acids. These are alpha amino acids which have the L-configuration of the alpha-carbon atom.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
Sub ClassAmino acids, peptides, and analogues
Direct ParentL-alpha-amino acids
Alternative Parents
Substituents
  • L-alpha-amino acid
  • Thia fatty acid
  • Fatty acid
  • Fatty acyl
  • Amino acid
  • Alkylthiol
  • Carboxylic acid
  • Monocarboxylic acid or derivatives
  • Organic nitrogen compound
  • Hydrocarbon derivative
  • Organic oxide
  • Primary amine
  • Organosulfur compound
  • Organooxygen compound
  • Organonitrogen compound
  • Organopnictogen compound
  • Primary aliphatic amine
  • Organic oxygen compound
  • Carbonyl group
  • Amine
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Ontology
OntologyNo ontology term
Physico-Chemical Properties - Experimental
Physico-Chemical Properties - Experimental
PropertyValueReference
Physical stateNot Available
Physical DescriptionNot Available
Mass CompositionNot Available
Melting PointNot Available
Boiling PointNot Available
Experimental Water SolubilityNot Available
Experimental logPNot Available
Experimental pKaNot Available
Isoelectric pointNot Available
ChargeNot Available
Optical RotationNot Available
Spectroscopic UV DataNot Available
DensityNot Available
Refractive IndexNot Available
Spectra
Spectra
EI-MS/GC-MS
TypeDescriptionSplash KeyView
GC-MSHomocysteine (metabolite of methionine), non-derivatized, GC-MS Spectrumsplash10-004i-0920000000-20fbffbe76510c066e6fSpectrum
Predicted GC-MSHomocysteine (metabolite of methionine), non-derivatized, Predicted GC-MS Spectrum - 70eV, Positivesplash10-0006-9000000000-1f800d28bca4b2b7a49fSpectrum
Predicted GC-MSHomocysteine (metabolite of methionine), non-derivatized, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSHomocysteine (metabolite of methionine), TMS_1_1, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSHomocysteine (metabolite of methionine), TMS_1_2, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSHomocysteine (metabolite of methionine), TMS_1_3, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSHomocysteine (metabolite of methionine), TBDMS_1_1, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSHomocysteine (metabolite of methionine), TBDMS_1_2, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSHomocysteine (metabolite of methionine), TBDMS_1_3, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
MS/MS
TypeDescriptionSplash KeyView
MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , positivesplash10-014l-4900000000-c50d79ba3a5013bcf29f2017-09-14View Spectrum
MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , positivesplash10-000i-9000000000-025c9e1f4fb58138c43b2017-09-14View Spectrum
MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , positivesplash10-014i-4900000000-33f205e002f49f0347642017-09-14View Spectrum
MS/MSLC-MS/MS Spectrum - 35V, Positivesplash10-052r-0900000000-c1f98c8182b5ddc09cb12021-09-20View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-00ko-9800000000-80a1c80328e8836233a42015-09-15View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0006-9100000000-1f611da44349ffdfaefe2015-09-15View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0bvi-9000000000-c9d62a66522e46a17f562015-09-15View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-001i-3900000000-e8322d5858cba16a3bd22015-09-15View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-00lr-6900000000-e0190a1cc33e605bac0a2015-09-15View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-001i-9000000000-900bb5d8fb11bec02e392015-09-15View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-001i-0900000000-38e427e24202b24115972021-09-21View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-001i-7900000000-5cf2133d9faac56032d32021-09-21View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-001i-9000000000-942ac689538269d6ca7b2021-09-21View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0006-9000000000-166428542631f9ac07142021-09-25View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0a4i-9000000000-9bcb57b924579a6c34112021-09-25View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0a4j-9000000000-8eee886864db64f3eec22021-09-25View Spectrum
NMR
TypeDescriptionView
1D NMR1H NMR Spectrum (1D, 500 MHz, H2O, experimental)Spectrum
1D NMR1H NMR Spectrum (1D, 400 MHz, D2O, experimental)Spectrum
1D NMR1H NMR Spectrum (1D, D2O, experimental)Spectrum
1D NMR13C NMR Spectrum (1D, D2O, experimental)Spectrum
1D NMR1H NMR Spectrum (1D, 100 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 100 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 1000 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 1000 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 200 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 200 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 300 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 300 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 400 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 400 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 500 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 500 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 600 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 600 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 700 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 700 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 800 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 800 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 900 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 900 MHz, D2O, predicted)Spectrum
2D NMR[1H, 13C]-HSQC NMR Spectrum (2D, 600 MHz, H2O, experimental)Spectrum
ChemSpider IDNot Available
ChEMBL IDNot Available
KEGG Compound IDNot Available
Pubchem Compound IDNot Available
Pubchem Substance IDNot Available
ChEBI IDNot Available
Phenol-Explorer IDNot Available
DrugBank IDNot Available
HMDB IDNot Available
CRC / DFC (Dictionary of Food Compounds) IDNot Available
EAFUS IDNot Available
Dr. Duke IDNot Available
BIGG IDNot Available
KNApSAcK IDNot Available
HET IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
Flavornet IDNot Available
GoodScent IDNot Available
SuperScent IDNot Available
Wikipedia IDNot Available
Phenol-Explorer Metabolite IDNot Available
Duplicate IDSNot Available
Old DFC IDSNot Available
Associated Foods
FoodContent Range AverageReference
FoodReference
Biological Effects and Interactions
Health Effects / BioactivitiesNot Available
EnzymesNot Available
PathwaysNot Available
MetabolismNot Available
BiosynthesisNot Available
Organoleptic Properties
FlavoursNot Available
Files
MSDSNot Available
References
Synthesis ReferenceNot Available
General ReferenceNot Available
Content Reference