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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2013-06-15 16:49:40 UTC
Update Date2021-09-14 14:57:39 UTC
HMDB IDHMDB0060559
Secondary Accession Numbers
  • HMDB60559
Metabolite Identification
Common NameAcetaminophen cystein
DescriptionAcetaminophen cystein, also known as paracetamol cysteine or aa-cysteine, belongs to the class of organic compounds known as l-cysteine-s-conjugates. L-cysteine-S-conjugates are compounds containing L-cysteine where the thio-group is conjugated. Acetaminophen cystein is a very strong basic compound (based on its pKa). Within humans, acetaminophen cystein participates in a number of enzymatic reactions. In particular, acetaminophen cystein can be biosynthesized from NAPQI and glutathione through its interaction with the enzymes glutathione S-transferase p and glutathione S-transferase theta-1. In addition, acetaminophen cystein can be converted into acetaminophen cystein through its interaction with the enzyme multidrug resistance-associated protein 1. In humans, acetaminophen cystein is involved in acetaminophen metabolism pathway.
Structure
Data?1563866076
Synonyms
ValueSource
Paracetamol cysteineHMDB
AA-cysteineHMDB
Acetaminophen cysteineMeSH
Chemical FormulaC11H14N2O3S
Average Molecular Weight254.305
Monoisotopic Molecular Weight254.072513014
IUPAC Name(2R)-2-amino-3-({4-[(1-hydroxyethylidene)amino]phenyl}sulfanyl)propanoic acid
Traditional Name(2R)-2-amino-3-({4-[(1-hydroxyethylidene)amino]phenyl}sulfanyl)propanoic acid
CAS Registry NumberNot Available
SMILES
CC(O)=NC1=CC=C(SC[C@H](N)C(O)=O)C=C1
InChI Identifier
InChI=1S/C11H14N2O3S/c1-7(14)13-8-2-4-9(5-3-8)17-6-10(12)11(15)16/h2-5,10H,6,12H2,1H3,(H,13,14)(H,15,16)/t10-/m0/s1
InChI KeyZOZXXYPCOKGXOE-JTQLQIEISA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as l-cysteine-s-conjugates. L-cysteine-S-conjugates are compounds containing L-cysteine where the thio-group is conjugated.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
Sub ClassAmino acids, peptides, and analogues
Direct ParentL-cysteine-S-conjugates
Alternative Parents
Substituents
  • L-cysteine-s-conjugate
  • L-alpha-amino acid
  • Alpha-amino acid
  • Acetanilide
  • N-acetylarylamine
  • Anilide
  • N-arylamide
  • Thiophenol ether
  • Aryl thioether
  • Alkylarylthioether
  • Benzenoid
  • Monocyclic benzene moiety
  • Acetamide
  • Secondary carboxylic acid amide
  • Carboxamide group
  • Amino acid
  • Carboxylic acid
  • Monocarboxylic acid or derivatives
  • Sulfenyl compound
  • Thioether
  • Organic nitrogen compound
  • Organosulfur compound
  • Organooxygen compound
  • Organonitrogen compound
  • Primary amine
  • Primary aliphatic amine
  • Hydrocarbon derivative
  • Organic oxide
  • Carbonyl group
  • Organopnictogen compound
  • Organic oxygen compound
  • Amine
  • Aromatic homomonocyclic compound
Molecular FrameworkAromatic homomonocyclic compounds
External DescriptorsNot Available
Ontology
Not AvailableNot 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
Water Solubility0.34 g/LALOGPS
logP-1.4ALOGPS
logP-1.1ChemAxon
logS-2.9ALOGPS
pKa (Strongest Acidic)1.82ChemAxon
pKa (Strongest Basic)9.46ChemAxon
Physiological Charge1ChemAxon
Hydrogen Acceptor Count5ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area95.91 ŲChemAxon
Rotatable Bond Count5ChemAxon
Refractivity68.42 m³·mol⁻¹ChemAxon
Polarizability26.34 ųChemAxon
Number of Rings1ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DarkChem[M+H]+159.61531661259
DarkChem[M-H]-157.65931661259
DeepCCS[M+H]+158.29630932474
DeepCCS[M-H]-155.93830932474
DeepCCS[M-2H]-188.99530932474
DeepCCS[M+Na]+164.38930932474
AllCCS[M+H]+155.832859911
AllCCS[M+H-H2O]+152.432859911
AllCCS[M+NH4]+158.932859911
AllCCS[M+Na]+159.832859911
AllCCS[M-H]-156.832859911
AllCCS[M+Na-2H]-157.332859911
AllCCS[M+HCOO]-157.932859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
Acetaminophen cysteinCC(O)=NC1=CC=C(SC[C@H](N)C(O)=O)C=C13660.2Standard polar33892256
Acetaminophen cysteinCC(O)=NC1=CC=C(SC[C@H](N)C(O)=O)C=C12497.9Standard non polar33892256
Acetaminophen cysteinCC(O)=NC1=CC=C(SC[C@H](N)C(O)=O)C=C12517.2Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
Acetaminophen cystein,1TMS,isomer #1CC(=NC1=CC=C(SC[C@H](N)C(=O)O)C=C1)O[Si](C)(C)C2431.6Semi standard non polar33892256
Acetaminophen cystein,1TMS,isomer #2CC(O)=NC1=CC=C(SC[C@H](N)C(=O)O[Si](C)(C)C)C=C12430.7Semi standard non polar33892256
Acetaminophen cystein,1TMS,isomer #3CC(O)=NC1=CC=C(SC[C@H](N[Si](C)(C)C)C(=O)O)C=C12505.5Semi standard non polar33892256
Acetaminophen cystein,2TMS,isomer #1CC(=NC1=CC=C(SC[C@H](N)C(=O)O[Si](C)(C)C)C=C1)O[Si](C)(C)C2366.3Semi standard non polar33892256
Acetaminophen cystein,2TMS,isomer #2CC(=NC1=CC=C(SC[C@H](N[Si](C)(C)C)C(=O)O)C=C1)O[Si](C)(C)C2415.6Semi standard non polar33892256
Acetaminophen cystein,2TMS,isomer #3CC(O)=NC1=CC=C(SC[C@H](N[Si](C)(C)C)C(=O)O[Si](C)(C)C)C=C12437.4Semi standard non polar33892256
Acetaminophen cystein,2TMS,isomer #4CC(O)=NC1=CC=C(SC[C@@H](C(=O)O)N([Si](C)(C)C)[Si](C)(C)C)C=C12663.2Semi standard non polar33892256
Acetaminophen cystein,3TMS,isomer #1CC(=NC1=CC=C(SC[C@H](N[Si](C)(C)C)C(=O)O[Si](C)(C)C)C=C1)O[Si](C)(C)C2389.2Semi standard non polar33892256
Acetaminophen cystein,3TMS,isomer #1CC(=NC1=CC=C(SC[C@H](N[Si](C)(C)C)C(=O)O[Si](C)(C)C)C=C1)O[Si](C)(C)C2382.6Standard non polar33892256
Acetaminophen cystein,3TMS,isomer #1CC(=NC1=CC=C(SC[C@H](N[Si](C)(C)C)C(=O)O[Si](C)(C)C)C=C1)O[Si](C)(C)C2887.1Standard polar33892256
Acetaminophen cystein,3TMS,isomer #2CC(=NC1=CC=C(SC[C@@H](C(=O)O)N([Si](C)(C)C)[Si](C)(C)C)C=C1)O[Si](C)(C)C2510.5Semi standard non polar33892256
Acetaminophen cystein,3TMS,isomer #2CC(=NC1=CC=C(SC[C@@H](C(=O)O)N([Si](C)(C)C)[Si](C)(C)C)C=C1)O[Si](C)(C)C2502.4Standard non polar33892256
Acetaminophen cystein,3TMS,isomer #2CC(=NC1=CC=C(SC[C@@H](C(=O)O)N([Si](C)(C)C)[Si](C)(C)C)C=C1)O[Si](C)(C)C3023.9Standard polar33892256
Acetaminophen cystein,3TMS,isomer #3CC(O)=NC1=CC=C(SC[C@@H](C(=O)O[Si](C)(C)C)N([Si](C)(C)C)[Si](C)(C)C)C=C12562.7Semi standard non polar33892256
Acetaminophen cystein,3TMS,isomer #3CC(O)=NC1=CC=C(SC[C@@H](C(=O)O[Si](C)(C)C)N([Si](C)(C)C)[Si](C)(C)C)C=C12494.9Standard non polar33892256
Acetaminophen cystein,3TMS,isomer #3CC(O)=NC1=CC=C(SC[C@@H](C(=O)O[Si](C)(C)C)N([Si](C)(C)C)[Si](C)(C)C)C=C12998.7Standard polar33892256
Acetaminophen cystein,4TMS,isomer #1CC(=NC1=CC=C(SC[C@@H](C(=O)O[Si](C)(C)C)N([Si](C)(C)C)[Si](C)(C)C)C=C1)O[Si](C)(C)C2495.4Semi standard non polar33892256
Acetaminophen cystein,4TMS,isomer #1CC(=NC1=CC=C(SC[C@@H](C(=O)O[Si](C)(C)C)N([Si](C)(C)C)[Si](C)(C)C)C=C1)O[Si](C)(C)C2516.9Standard non polar33892256
Acetaminophen cystein,4TMS,isomer #1CC(=NC1=CC=C(SC[C@@H](C(=O)O[Si](C)(C)C)N([Si](C)(C)C)[Si](C)(C)C)C=C1)O[Si](C)(C)C2747.0Standard polar33892256
Acetaminophen cystein,1TBDMS,isomer #1CC(=NC1=CC=C(SC[C@H](N)C(=O)O)C=C1)O[Si](C)(C)C(C)(C)C2707.9Semi standard non polar33892256
Acetaminophen cystein,1TBDMS,isomer #2CC(O)=NC1=CC=C(SC[C@H](N)C(=O)O[Si](C)(C)C(C)(C)C)C=C12707.2Semi standard non polar33892256
Acetaminophen cystein,1TBDMS,isomer #3CC(O)=NC1=CC=C(SC[C@H](N[Si](C)(C)C(C)(C)C)C(=O)O)C=C12738.0Semi standard non polar33892256
Acetaminophen cystein,2TBDMS,isomer #1CC(=NC1=CC=C(SC[C@H](N)C(=O)O[Si](C)(C)C(C)(C)C)C=C1)O[Si](C)(C)C(C)(C)C2858.1Semi standard non polar33892256
Acetaminophen cystein,2TBDMS,isomer #2CC(=NC1=CC=C(SC[C@H](N[Si](C)(C)C(C)(C)C)C(=O)O)C=C1)O[Si](C)(C)C(C)(C)C2927.6Semi standard non polar33892256
Acetaminophen cystein,2TBDMS,isomer #3CC(O)=NC1=CC=C(SC[C@H](N[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C)C=C12910.4Semi standard non polar33892256
Acetaminophen cystein,2TBDMS,isomer #4CC(O)=NC1=CC=C(SC[C@@H](C(=O)O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C=C13101.4Semi standard non polar33892256
Acetaminophen cystein,3TBDMS,isomer #1CC(=NC1=CC=C(SC[C@H](N[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C)C=C1)O[Si](C)(C)C(C)(C)C3078.0Semi standard non polar33892256
Acetaminophen cystein,3TBDMS,isomer #1CC(=NC1=CC=C(SC[C@H](N[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C)C=C1)O[Si](C)(C)C(C)(C)C2979.3Standard non polar33892256
Acetaminophen cystein,3TBDMS,isomer #1CC(=NC1=CC=C(SC[C@H](N[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C)C=C1)O[Si](C)(C)C(C)(C)C3135.9Standard polar33892256
Acetaminophen cystein,3TBDMS,isomer #2CC(=NC1=CC=C(SC[C@@H](C(=O)O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C=C1)O[Si](C)(C)C(C)(C)C3280.7Semi standard non polar33892256
Acetaminophen cystein,3TBDMS,isomer #2CC(=NC1=CC=C(SC[C@@H](C(=O)O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C=C1)O[Si](C)(C)C(C)(C)C3065.3Standard non polar33892256
Acetaminophen cystein,3TBDMS,isomer #2CC(=NC1=CC=C(SC[C@@H](C(=O)O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C=C1)O[Si](C)(C)C(C)(C)C3194.6Standard polar33892256
Acetaminophen cystein,3TBDMS,isomer #3CC(O)=NC1=CC=C(SC[C@@H](C(=O)O[Si](C)(C)C(C)(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C=C13256.4Semi standard non polar33892256
Acetaminophen cystein,3TBDMS,isomer #3CC(O)=NC1=CC=C(SC[C@@H](C(=O)O[Si](C)(C)C(C)(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C=C13076.0Standard non polar33892256
Acetaminophen cystein,3TBDMS,isomer #3CC(O)=NC1=CC=C(SC[C@@H](C(=O)O[Si](C)(C)C(C)(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C=C13190.0Standard polar33892256
Acetaminophen cystein,4TBDMS,isomer #1CC(=NC1=CC=C(SC[C@@H](C(=O)O[Si](C)(C)C(C)(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C=C1)O[Si](C)(C)C(C)(C)C3453.8Semi standard non polar33892256
Acetaminophen cystein,4TBDMS,isomer #1CC(=NC1=CC=C(SC[C@@H](C(=O)O[Si](C)(C)C(C)(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C=C1)O[Si](C)(C)C(C)(C)C3220.2Standard non polar33892256
Acetaminophen cystein,4TBDMS,isomer #1CC(=NC1=CC=C(SC[C@@H](C(=O)O[Si](C)(C)C(C)(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C=C1)O[Si](C)(C)C(C)(C)C3078.5Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Acetaminophen cystein GC-MS (Non-derivatized) - 70eV, Positivesplash10-044l-8970000000-5c778be04752360df8ea2017-09-20Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Acetaminophen cystein GC-MS (2 TMS) - 70eV, Positivesplash10-01c9-9743000000-11992e3486bb1de355972017-10-06Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Acetaminophen cystein GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Acetaminophen cystein 10V, Positive-QTOFsplash10-0a4r-1490000000-651187c3825b168ab24d2017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Acetaminophen cystein 20V, Positive-QTOFsplash10-06di-1940000000-c69f3e5dd0de3df47b0e2017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Acetaminophen cystein 40V, Positive-QTOFsplash10-0gic-3900000000-3bb28136fd14a56911772017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Acetaminophen cystein 10V, Negative-QTOFsplash10-0uxr-1490000000-1b4f05b101e91fba5e7b2017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Acetaminophen cystein 20V, Negative-QTOFsplash10-01b9-1910000000-55f1adf01057650c32042017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Acetaminophen cystein 40V, Negative-QTOFsplash10-0079-9500000000-065b9ad7f744a497808c2017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Acetaminophen cystein 10V, Positive-QTOFsplash10-0a4i-0290000000-2eb94517a0f5def956bf2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Acetaminophen cystein 20V, Positive-QTOFsplash10-0600-0940000000-e234237eb5295baf49c32021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Acetaminophen cystein 40V, Positive-QTOFsplash10-00xr-5900000000-3c8afec24be499db50c42021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Acetaminophen cystein 10V, Negative-QTOFsplash10-0uxr-0590000000-3e90f355c619f21ce5422021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Acetaminophen cystein 20V, Negative-QTOFsplash10-0002-0900000000-0981e7bb446bf549fbd92021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Acetaminophen cystein 40V, Negative-QTOFsplash10-0fk9-1900000000-684281e2191bb07e83d82021-10-12Wishart LabView Spectrum

NMR Spectra

Spectrum TypeDescriptionDeposition DateSourceView
Predicted 1D NMR13C NMR Spectrum (1D, 100 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 100 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 1000 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 1000 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 200 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 200 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 300 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 300 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 400 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 400 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 500 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 500 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 600 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 600 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 700 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 700 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 800 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 800 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 900 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 900 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Biological Properties
Cellular Locations
  • Cytoplasm
Biospecimen Locations
  • Blood
  • Urine
Tissue Locations
  • Kidney
  • Liver
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodExpected but not QuantifiedNot QuantifiedNot AvailableNot AvailableNormal
      Not Available
details
UrineExpected but not QuantifiedNot QuantifiedNot AvailableNot AvailableNormal
      Not Available
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 IDNot Available
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound83997
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 ReferencesNot Available