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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-08-27 04:23:36 UTC
Update Date2022-09-22 18:35:13 UTC
HMDB IDHMDB0242140
Secondary Accession NumbersNone
Metabolite Identification
Common NameAcetaminophen mercapturate
DescriptionAcetaminophen mercapturate belongs to the class of organic compounds known as n-acyl-l-alpha-amino acids. These are n-acylated alpha amino acids which have the L-configuration of the alpha-carbon atom. Acetaminophen mercapturate is a secondary metabolite. Secondary metabolites are metabolically or physiologically non-essential metabolites that may serve a role as defense or signalling molecules. In some cases they are simply molecules that arise from the incomplete metabolism of other secondary metabolites. Based on a literature review a significant number of articles have been published on Acetaminophen mercapturate.
Structure
Thumb
Synonyms
ValueSource
3-(N-Acetyl-L-cystein-S-yl)acetaminophenChEBI
Acetaminophen mercapturic acidChEBI
Acetaminophen N-acetyl-L-cysteine conjugateChEBI
N-Acetyl-L-cysteine S-acetaminophen conjugateChEBI
N-Acetyl-L-cysteine S-paracetamol conjugateChEBI
N-Acetyl-S-(5-(acetylamino)-2-hydroxyphenyl)-L-cysteineChEBI
Paracetamol N-acetyl-L-cysteine conjugateChEBI
Acetaminophen mercaptateGenerator
Acetaminophen mercaptic acidGenerator
Acetaminophen N-acetyl-L-cysteine conjugic acidGenerator
N-Acetyl-L-cysteine S-acetaminophen conjugic acidGenerator
N-Acetyl-L-cysteine S-paracetamol conjugic acidGenerator
Paracetamol N-acetyl-L-cysteine conjugic acidGenerator
Acetaminophen mercapturate monopotassium saltHMDB
Paracetamol mercapturateHMDB
Chemical FormulaC13H16N2O5S
Average Molecular Weight312.34
Monoisotopic Molecular Weight312.077992797
IUPAC Name(2R)-3-({2-hydroxy-5-[(1-hydroxyethylidene)amino]phenyl}sulfanyl)-2-[(1-hydroxyethylidene)amino]propanoic acid
Traditional Name(2R)-3-({2-hydroxy-5-[(1-hydroxyethylidene)amino]phenyl}sulfanyl)-2-[(1-hydroxyethylidene)amino]propanoic acid
CAS Registry NumberNot Available
SMILES
[H][C@@](CSC1=C(O)C=CC(=C1)N=C(C)O)(N=C(C)O)C(O)=O
InChI Identifier
InChI=1S/C13H16N2O5S/c1-7(16)14-9-3-4-11(18)12(5-9)21-6-10(13(19)20)15-8(2)17/h3-5,10,18H,6H2,1-2H3,(H,14,16)(H,15,17)(H,19,20)/t10-/m0/s1
InChI KeyDVPRQNKJGQEICH-JTQLQIEISA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as n-acyl-l-alpha-amino acids. These are n-acylated 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 ParentN-acyl-L-alpha-amino acids
Alternative Parents
Substituents
  • N-acyl-l-alpha-amino acid
  • Cysteine or derivatives
  • Acetanilide
  • Anilide
  • N-acetylarylamine
  • Thiophenol ether
  • N-arylamide
  • Aryl thioether
  • Phenol
  • 1-hydroxy-2-unsubstituted benzenoid
  • Alkylarylthioether
  • Monocyclic benzene moiety
  • Benzenoid
  • Acetamide
  • Carboxamide group
  • Secondary carboxylic acid amide
  • Thioether
  • Monocarboxylic acid or derivatives
  • Carboxylic acid
  • Sulfenyl compound
  • Organic nitrogen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organosulfur compound
  • Organooxygen compound
  • Organonitrogen compound
  • Organopnictogen compound
  • Carbonyl group
  • Organic oxygen compound
  • 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
logP0.85ALOGPS
logP1.39ChemAxon
logS-3.2ALOGPS
pKa (Strongest Acidic)3.14ChemAxon
pKa (Strongest Basic)1.44ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count7ChemAxon
Hydrogen Donor Count4ChemAxon
Polar Surface Area122.71 ŲChemAxon
Rotatable Bond Count6ChemAxon
Refractivity80.36 m³·mol⁻¹ChemAxon
Polarizability30.98 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]+169.99930932474
DeepCCS[M-H]-167.64130932474
DeepCCS[M-2H]-201.21930932474
DeepCCS[M+Na]+176.44630932474

Predicted Retention Times

Underivatized

Chromatographic MethodRetention TimeReference
Predicted by Siyang on May 30, 20229.8401 minutes33406817
Predicted by Siyang using ReTip algorithm on June 8, 20224.93 minutes32390414
Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid1068.4 seconds40023050
Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid211.6 seconds40023050
Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid84.6 seconds40023050
Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid159.5 seconds40023050
RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid59.6 seconds40023050
Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid272.9 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 Acid310.6 seconds40023050
HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate)231.5 seconds40023050
UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid610.2 seconds40023050
BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid242.4 seconds40023050
UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid849.7 seconds40023050
SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid187.8 seconds40023050
RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid211.5 seconds40023050
MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate380.5 seconds40023050
KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA231.1 seconds40023050
Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water205.4 seconds40023050

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
Acetaminophen mercapturate[H][C@@](CSC1=C(O)C=CC(=C1)N=C(C)O)(N=C(C)O)C(O)=O3950.1Standard polar33892256
Acetaminophen mercapturate[H][C@@](CSC1=C(O)C=CC(=C1)N=C(C)O)(N=C(C)O)C(O)=O3005.9Standard non polar33892256
Acetaminophen mercapturate[H][C@@](CSC1=C(O)C=CC(=C1)N=C(C)O)(N=C(C)O)C(O)=O2858.3Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Acetaminophen mercapturate GC-MS (Non-derivatized) - 70eV, Positivesplash10-00kf-6390000000-e2014eb87e56bdbd4f342021-09-23Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Acetaminophen mercapturate 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 mercapturate 10V, Positive-QTOFsplash10-03di-0597000000-0fc8c89e9f5983f9396e2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Acetaminophen mercapturate 20V, Positive-QTOFsplash10-0kal-1920000000-cc5f6b1e811c542f45a72021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Acetaminophen mercapturate 40V, Positive-QTOFsplash10-0a5c-5900000000-744968e2a59bf8442a412021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Acetaminophen mercapturate 10V, Negative-QTOFsplash10-0019-0911000000-f0a439c284767d6c9c8c2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Acetaminophen mercapturate 20V, Negative-QTOFsplash10-03dr-0900000000-14abab8d0a6ab51b19272021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Acetaminophen mercapturate 40V, Negative-QTOFsplash10-000i-6900000000-169732855534bb55ed892021-10-12Wishart LabView Spectrum
Biological Properties
Cellular LocationsNot Available
Biospecimen Locations
  • Blood
  • Urine
Tissue LocationsNot Available
Pathways
Normal Concentrations
Not Available
Abnormal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodExpected but not QuantifiedNot QuantifiedAdult (>18 years old)BothAsthma details
UrineDetected but not QuantifiedNot QuantifiedAdult (>18 years old)BothAsthma details
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDNot Available
KNApSAcK IDNot Available
Chemspider ID75765
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound83967
PDB IDNot Available
ChEBI ID133435
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. Kong SW, Hernandez-Ferrer C: Assessment of coverage for endogenous metabolites and exogenous chemical compounds using an untargeted metabolomics platform. Pac Symp Biocomput. 2020;25:587-598. [PubMed:31797630 ]