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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-09-11 14:35:42 UTC
Update Date2021-09-26 23:09:34 UTC
HMDB IDHMDB0255061
Secondary Accession NumbersNone
Metabolite Identification
Common NameN-Acetyl-S-benzyl-L-cysteine
DescriptionN-Acetyl-S-benzyl-L-cysteine belongs to the class of organic compounds known as n-acyl-alpha amino acids. N-acyl-alpha amino acids are compounds containing an alpha amino acid which bears an acyl group at its terminal nitrogen atom. Based on a literature review a small amount of articles have been published on N-Acetyl-S-benzyl-L-cysteine. This compound has been identified in human blood as reported by (PMID: 31557052 ). N-acetyl-s-benzyl-l-cysteine is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically N-Acetyl-S-benzyl-L-cysteine is part of the human exposome. The exposome can be defined as the collection of all the exposures of an individual in a lifetime and how those exposures relate to health. An individual's exposure begins before birth and includes insults from environmental and occupational sources.
Structure
Thumb
SynonymsNot Available
Chemical FormulaC12H15NO3S
Average Molecular Weight253.32
Monoisotopic Molecular Weight253.077264521
IUPAC Name3-(benzylsulfanyl)-2-acetamidopropanoic acid
Traditional Name3-(benzylsulfanyl)-2-acetamidopropanoic acid
CAS Registry NumberNot Available
SMILES
CC(=O)NC(CSCC1=CC=CC=C1)C(O)=O
InChI Identifier
InChI=1S/C12H15NO3S/c1-9(14)13-11(12(15)16)8-17-7-10-5-3-2-4-6-10/h2-6,11H,7-8H2,1H3,(H,13,14)(H,15,16)
InChI KeyBJUXDERNWYKSIQ-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as n-acyl-alpha amino acids. N-acyl-alpha amino acids are compounds containing an alpha amino acid which bears an acyl group at its terminal nitrogen atom.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
Sub ClassAmino acids, peptides, and analogues
Direct ParentN-acyl-alpha amino acids
Alternative Parents
Substituents
  • N-acyl-alpha-amino acid
  • Cysteine or derivatives
  • Monocyclic benzene moiety
  • Benzenoid
  • Acetamide
  • Carboxamide group
  • Secondary carboxylic acid amide
  • Carboxylic acid
  • Monocarboxylic acid or derivatives
  • Thioether
  • Sulfenyl compound
  • Dialkylthioether
  • Organosulfur compound
  • Organooxygen compound
  • Organonitrogen compound
  • Organopnictogen compound
  • Organic nitrogen compound
  • Organic oxide
  • Carbonyl group
  • Organic oxygen compound
  • Hydrocarbon derivative
  • Aromatic homomonocyclic compound
Molecular FrameworkAromatic homomonocyclic compounds
External DescriptorsNot Available
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
RoleNot Available
Physical Properties
StateNot Available
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
logP1.25ALOGPS
logP1.3ChemAxon
logS-3.1ALOGPS
pKa (Strongest Acidic)3.99ChemAxon
pKa (Strongest Basic)-2ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area66.4 ŲChemAxon
Rotatable Bond Count6ChemAxon
Refractivity66.98 m³·mol⁻¹ChemAxon
Polarizability26.69 ųChemAxon
Number of Rings1ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DeepCCS[M+H]+148.84830932474
DeepCCS[M-H]-146.4930932474
DeepCCS[M-2H]-181.77230932474
DeepCCS[M+Na]+157.09730932474
AllCCS[M+H]+155.532859911
AllCCS[M+H-H2O]+152.132859911
AllCCS[M+NH4]+158.732859911
AllCCS[M+Na]+159.632859911
AllCCS[M-H]-157.432859911
AllCCS[M+Na-2H]-157.932859911
AllCCS[M+HCOO]-158.432859911

Predicted Retention Times

Underivatized

Chromatographic MethodRetention TimeReference
Predicted by Siyang on May 30, 202211.2435 minutes33406817
Predicted by Siyang using ReTip algorithm on June 8, 20222.39 minutes32390414
Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid1738.5 seconds40023050
Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid298.3 seconds40023050
Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid128.7 seconds40023050
Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid178.5 seconds40023050
RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid100.5 seconds40023050
Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid409.7 seconds40023050
BfG_NTS_RP1 =Agilent Zorbax Eclipse Plus C18 (2.1 mm x 150 mm, 3.5 um) with Water:ACN and 0.1% Formic Acid580.5 seconds40023050
HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate)106.2 seconds40023050
UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid900.6 seconds40023050
BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid409.2 seconds40023050
UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid1231.0 seconds40023050
SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid268.1 seconds40023050
RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid312.2 seconds40023050
MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate329.4 seconds40023050
KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA181.8 seconds40023050
Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water60.4 seconds40023050

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
N-Acetyl-S-benzyl-L-cysteineCC(=O)NC(CSCC1=CC=CC=C1)C(O)=O3233.5Standard polar33892256
N-Acetyl-S-benzyl-L-cysteineCC(=O)NC(CSCC1=CC=CC=C1)C(O)=O2033.0Standard non polar33892256
N-Acetyl-S-benzyl-L-cysteineCC(=O)NC(CSCC1=CC=CC=C1)C(O)=O2172.1Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
N-Acetyl-S-benzyl-L-cysteine,2TMS,isomer #1CC(=O)N(C(CSCC1=CC=CC=C1)C(=O)O[Si](C)(C)C)[Si](C)(C)C2188.1Semi standard non polar33892256
N-Acetyl-S-benzyl-L-cysteine,2TMS,isomer #1CC(=O)N(C(CSCC1=CC=CC=C1)C(=O)O[Si](C)(C)C)[Si](C)(C)C2110.1Standard non polar33892256
N-Acetyl-S-benzyl-L-cysteine,2TMS,isomer #1CC(=O)N(C(CSCC1=CC=CC=C1)C(=O)O[Si](C)(C)C)[Si](C)(C)C2543.3Standard polar33892256
N-Acetyl-S-benzyl-L-cysteine,2TBDMS,isomer #1CC(=O)N(C(CSCC1=CC=CC=C1)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C2662.9Semi standard non polar33892256
N-Acetyl-S-benzyl-L-cysteine,2TBDMS,isomer #1CC(=O)N(C(CSCC1=CC=CC=C1)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C2526.6Standard non polar33892256
N-Acetyl-S-benzyl-L-cysteine,2TBDMS,isomer #1CC(=O)N(C(CSCC1=CC=CC=C1)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C2786.0Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - N-Acetyl-S-benzyl-L-cysteine GC-MS (Non-derivatized) - 70eV, Positivesplash10-0006-9110000000-850335da4458c5d4e9012021-09-24Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - N-Acetyl-S-benzyl-L-cysteine GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - N-Acetyl-S-benzyl-L-cysteine GC-MS (TMS_1_1) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - N-Acetyl-S-benzyl-L-cysteine GC-MS (TMS_1_2) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - N-Acetyl-S-benzyl-L-cysteine GC-MS (TBDMS_1_1) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - N-Acetyl-S-benzyl-L-cysteine GC-MS (TBDMS_1_2) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Biological Properties
Cellular LocationsNot Available
Biospecimen Locations
  • Blood
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodDetected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDNot Available
KNApSAcK IDNot Available
Chemspider ID487714
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound561045
PDB IDNot Available
ChEBI IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Barupal DK, Fiehn O: Generating the Blood Exposome Database Using a Comprehensive Text Mining and Database Fusion Approach. Environ Health Perspect. 2019 Sep;127(9):97008. doi: 10.1289/EHP4713. Epub 2019 Sep 26. [PubMed:31557052 ]