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Version5.0
StatusExpected but not Quantified
Creation Date2013-06-15 18:09:01 UTC
Update Date2023-02-21 17:30:06 UTC
HMDB IDHMDB0060624
Secondary Accession Numbers
  • HMDB60624
Metabolite Identification
Common NameEthionamide sulphoxide
DescriptionEthionamide sulphoxide is a metabolite of ethionamide. Ethionamide (2-ethylthioisonicotinamide, Trecator SC) is an antibiotic used in the treatment of tuberculosis. Ethionamide works to induce expression of EthA, a NAD derivative which is toxic to fungi. The resistance mechanism of this drug is through EthR, resistance is common. Therefore, EthR inhibitors are of great interest. It is a prodrug. It has been proposed for use in combination with gatifloxacin. The action may be through disruption of mycolic acid. (Wikipedia)
Structure
Data?1677000606
Synonyms
ValueSource
Ethionamide sulfoxideChEBI
Ethionamide sulphoxideChEBI
Chemical FormulaC8H10N2OS
Average Molecular Weight182.243
Monoisotopic Molecular Weight182.051383642
IUPAC Name(2-ethylpyridin-4-yl)(sulfinylidene)methanamine
Traditional Name(2-ethylpyridin-4-yl)(sulfinylidene)methanamine
CAS Registry NumberNot Available
SMILES
CCC1=NC=CC(=C1)C(N)=S=O
InChI Identifier
InChI=1S/C8H10N2OS/c1-2-7-5-6(3-4-10-7)8(9)12-11/h3-5H,2,9H2,1H3
InChI KeyQDQQNGZRIJPDGA-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as pyridines and derivatives. Pyridines and derivatives are compounds containing a pyridine ring, which is a six-member aromatic heterocycle which consists of one nitrogen atom and five carbon atoms.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassPyridines and derivatives
Sub ClassNot Available
Direct ParentPyridines and derivatives
Alternative Parents
Substituents
  • Pyridine
  • Heteroaromatic compound
  • Azacycle
  • Sulfinyl compound
  • Sulfine
  • Organic nitrogen compound
  • Organic oxygen compound
  • Organopnictogen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organosulfur compound
  • Organonitrogen compound
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic 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
Water Solubility71.3 g/LALOGPS
logP0.23ALOGPS
logP0.8ChemAxon
logS-0.41ALOGPS
pKa (Strongest Acidic)7.53ChemAxon
pKa (Strongest Basic)4.47ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area55.98 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity47.95 m³·mol⁻¹ChemAxon
Polarizability18.62 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
DarkChem[M+H]+140.31531661259
DarkChem[M-H]-136.83731661259
DeepCCS[M+H]+140.07530932474
DeepCCS[M-H]-137.72930932474
DeepCCS[M-2H]-173.64930932474
DeepCCS[M+Na]+148.81930932474
AllCCS[M+H]+138.532859911
AllCCS[M+H-H2O]+134.132859911
AllCCS[M+NH4]+142.532859911
AllCCS[M+Na]+143.732859911
AllCCS[M-H]-138.132859911
AllCCS[M+Na-2H]-139.332859911
AllCCS[M+HCOO]-140.632859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
Ethionamide sulphoxideCCC1=NC=CC(=C1)C(N)=S=O2683.3Standard polar33892256
Ethionamide sulphoxideCCC1=NC=CC(=C1)C(N)=S=O1742.9Standard non polar33892256
Ethionamide sulphoxideCCC1=NC=CC(=C1)C(N)=S=O1862.2Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
Ethionamide sulphoxide,1TMS,isomer #1CCC1=CC(C(N[Si](C)(C)C)=S=O)=CC=N11921.4Semi standard non polar33892256
Ethionamide sulphoxide,1TMS,isomer #1CCC1=CC(C(N[Si](C)(C)C)=S=O)=CC=N11592.2Standard non polar33892256
Ethionamide sulphoxide,1TMS,isomer #1CCC1=CC(C(N[Si](C)(C)C)=S=O)=CC=N12638.7Standard polar33892256
Ethionamide sulphoxide,2TMS,isomer #1CCC1=CC(C(=S=O)N([Si](C)(C)C)[Si](C)(C)C)=CC=N11957.3Semi standard non polar33892256
Ethionamide sulphoxide,2TMS,isomer #1CCC1=CC(C(=S=O)N([Si](C)(C)C)[Si](C)(C)C)=CC=N11770.9Standard non polar33892256
Ethionamide sulphoxide,2TMS,isomer #1CCC1=CC(C(=S=O)N([Si](C)(C)C)[Si](C)(C)C)=CC=N12308.1Standard polar33892256
Ethionamide sulphoxide,1TBDMS,isomer #1CCC1=CC(C(N[Si](C)(C)C(C)(C)C)=S=O)=CC=N12158.7Semi standard non polar33892256
Ethionamide sulphoxide,1TBDMS,isomer #1CCC1=CC(C(N[Si](C)(C)C(C)(C)C)=S=O)=CC=N11819.7Standard non polar33892256
Ethionamide sulphoxide,1TBDMS,isomer #1CCC1=CC(C(N[Si](C)(C)C(C)(C)C)=S=O)=CC=N12696.9Standard polar33892256
Ethionamide sulphoxide,2TBDMS,isomer #1CCC1=CC(C(=S=O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)=CC=N12439.7Semi standard non polar33892256
Ethionamide sulphoxide,2TBDMS,isomer #1CCC1=CC(C(=S=O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)=CC=N12193.7Standard non polar33892256
Ethionamide sulphoxide,2TBDMS,isomer #1CCC1=CC(C(=S=O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)=CC=N12433.9Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Ethionamide sulphoxide GC-MS (Non-derivatized) - 70eV, Positivesplash10-001i-2900000000-e1e57c15859b4306c6bf2017-09-20Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Ethionamide sulphoxide 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 - Ethionamide sulphoxide 10V, Positive-QTOFsplash10-00lr-0900000000-cc0dcc80ecd495acbefa2017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Ethionamide sulphoxide 20V, Positive-QTOFsplash10-00lr-0900000000-20f6be49e087dc9c38db2017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Ethionamide sulphoxide 40V, Positive-QTOFsplash10-0a6r-9600000000-3c6a5f1dedd78e140dc12017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Ethionamide sulphoxide 10V, Negative-QTOFsplash10-001i-0900000000-8862d0db3ba360dc524a2017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Ethionamide sulphoxide 20V, Negative-QTOFsplash10-001i-3900000000-c674145c3a95a060d1272017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Ethionamide sulphoxide 40V, Negative-QTOFsplash10-00fs-9100000000-2eeb13718a3e3f1a04662017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Ethionamide sulphoxide 10V, Positive-QTOFsplash10-001i-0900000000-9e05192d1bd755c0f7562021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Ethionamide sulphoxide 20V, Positive-QTOFsplash10-001i-0900000000-cffdf45561ef57a7f9a82021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Ethionamide sulphoxide 40V, Positive-QTOFsplash10-0a4i-9500000000-8afdbc66318c758b4af02021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Ethionamide sulphoxide 10V, Negative-QTOFsplash10-001i-1900000000-7774abd10ade777d372b2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Ethionamide sulphoxide 20V, Negative-QTOFsplash10-003s-9700000000-7e99e9e2a9cbcc30de982021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Ethionamide sulphoxide 40V, Negative-QTOFsplash10-004j-9200000000-eb1791a4bad974853ef92021-10-12Wishart 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

IR Spectra

Spectrum TypeDescriptionDeposition DateSourceView
Predicted IR SpectrumIR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M-H]-)2023-02-04FELIX labView Spectrum
Predicted IR SpectrumIR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+Na]+)2023-02-04FELIX 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 Compound71316501
PDB IDNot Available
ChEBI ID87805
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. Deshpande AY, Gurav S, Punde R, Zambre V, Kulkarni R, Pandey S, Mungantiwar A, Mullangi R: Development and validation of a highly sensitive LC-MS/MS method for simultaneous quantitation of ethionamide and ethionamide sulfoxide in human plasma: application to a human pharmacokinetic study. Biomed Chromatogr. 2011 Sep;25(9):985-94. doi: 10.1002/bmc.1554. Epub 2011 Jan 26. [PubMed:21268048 ]
  2. Grunert M, Werner E, Iwainsky H, Eule H: [Associated chemical and microbiological studies on the antitubercular properties of ethionamide sulfoxide]. Z Erkr Atmungsorgane Folia Bronchol. 1970 Dec;133(1):406-8. [PubMed:5204733 ]
  3. Bieder A, Brunel P, Roquet-Ghaye J, Kreis B: [Evolution of serum concentrations of ethionamide (TH 1413) and ethionamide sulfoxide (TH 1405) after oral administration of these tuberculostatic agents in man]. Rev Fr Etud Clin Biol. 1966 Apr;11(4):419-23. [PubMed:5944589 ]