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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-09-11 07:18:16 UTC
Update Date2021-09-26 23:01:41 UTC
HMDB IDHMDB0250301
Secondary Accession NumbersNone
Metabolite Identification
Common NameCitiolone
DescriptionCitiolone, also known as thioxidrene or cythiolone, belongs to the class of organic compounds known as n-acyl-alpha amino acids and derivatives. N-acyl-alpha amino acids and derivatives are compounds containing an alpha amino acid (or a derivative thereof) which bears an acyl group at its terminal nitrogen atom. Citiolone is a moderately basic compound (based on its pKa). The drug has been shown to protect hamster cells subjected to temperature conditions of 8-25oC. Citiolone is a drug used in liver therapy. Citilone has also been studied with regards to hypothermia due to it being a hydroxyl free radical scavenger. It is a derivative of the amino acid cysteine. This compound has been identified in human blood as reported by (PMID: 31557052 ). Citiolone is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically Citiolone 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
Synonyms
ValueSource
Citiolone, (+-)-isomerMeSH
ThioxidreneMeSH
CythioloneMeSH
N-Acetylhomocysteine thiolactoneMeSH
ReducdynMeSH
N-(2-Oxothiolan-3-yl)ethanimidateGenerator
Chemical FormulaC6H9NO2S
Average Molecular Weight159.2
Monoisotopic Molecular Weight159.035399708
IUPAC NameN-(2-oxothiolan-3-yl)ethanimidic acid
Traditional Namecitiolone
CAS Registry NumberNot Available
SMILES
CC(O)=NC1CCSC1=O
InChI Identifier
InChI=1S/C6H9NO2S/c1-4(8)7-5-2-3-10-6(5)9/h5H,2-3H2,1H3,(H,7,8)
InChI KeyNRFJZTXWLKPZAV-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as n-acyl-alpha amino acids and derivatives. N-acyl-alpha amino acids and derivatives are compounds containing an alpha amino acid (or a derivative thereof) 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 and derivatives
Alternative Parents
Substituents
  • N-acyl-alpha amino acid or derivatives
  • Carbothioic s-lactone
  • Thiolane
  • Thiocarboxylic acid ester
  • Thiolactone
  • Carboximidic acid
  • Carboximidic acid derivative
  • Thiocarboxylic acid or derivatives
  • Organoheterocyclic compound
  • Organic 1,3-dipolar compound
  • Propargyl-type 1,3-dipolar organic compound
  • Carbonyl group
  • Hydrocarbon derivative
  • Organic oxide
  • Organooxygen compound
  • Organonitrogen compound
  • Organopnictogen compound
  • Organic oxygen compound
  • Organic nitrogen compound
  • Aliphatic heteromonocyclic compound
Molecular FrameworkAliphatic 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
logP0.01ALOGPS
logP0.39ChemAxon
logS-1.3ALOGPS
pKa (Strongest Acidic)5.78ChemAxon
pKa (Strongest Basic)1.79ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area49.66 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity39.72 m³·mol⁻¹ChemAxon
Polarizability15.46 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
DeepCCS[M+H]+132.91330932474
DeepCCS[M-H]-129.40730932474
DeepCCS[M-2H]-166.45630932474
DeepCCS[M+Na]+141.60530932474
AllCCS[M+H]+132.432859911
AllCCS[M+H-H2O]+128.132859911
AllCCS[M+NH4]+136.432859911
AllCCS[M+Na]+137.632859911
AllCCS[M-H]-132.232859911
AllCCS[M+Na-2H]-134.032859911
AllCCS[M+HCOO]-136.132859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
CitioloneCC(O)=NC1CCSC1=O2748.2Standard polar33892256
CitioloneCC(O)=NC1CCSC1=O1451.0Standard non polar33892256
CitioloneCC(O)=NC1CCSC1=O1511.8Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Citiolone GC-MS (Non-derivatized) - 70eV, Positivesplash10-002g-9200000000-6a58bc577a7482bcdc0a2021-09-23Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Citiolone GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Citiolone GC-MS (TMS_1_1) - 70eV, PositiveNot Available2021-11-03Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Citiolone GC-MS (TBDMS_1_1) - 70eV, PositiveNot Available2021-11-03Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Citiolone 10V, Positive-QTOFsplash10-03xr-0900000000-6afc57804c3a725f6dc92016-06-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Citiolone 20V, Positive-QTOFsplash10-014l-4900000000-e4d6cf5d0ce8c2b218c22016-06-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Citiolone 40V, Positive-QTOFsplash10-0zfu-9100000000-cc6b67237938355ac04d2016-06-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Citiolone 10V, Negative-QTOFsplash10-0a4i-1900000000-71c6f82a95459526e8722016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Citiolone 20V, Negative-QTOFsplash10-052b-9100000000-7065d877189a6c6b283f2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Citiolone 40V, Negative-QTOFsplash10-056u-9000000000-d8287f98d5b3728779992016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Citiolone 10V, Positive-QTOFsplash10-02t9-0900000000-fbdc6a209c15dc16dd222021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Citiolone 20V, Positive-QTOFsplash10-014i-6900000000-fcc74b18cc98cbef4fc22021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Citiolone 40V, Positive-QTOFsplash10-0r0d-9200000000-62d66bf2c89b821b841c2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Citiolone 10V, Negative-QTOFsplash10-03di-1900000000-b807bcc4c2d05d4987782021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Citiolone 20V, Negative-QTOFsplash10-0a4i-9100000000-fce9dd82109cfb17837b2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Citiolone 40V, Negative-QTOFsplash10-0006-9000000000-ac85515883da9f9546822021-10-12Wishart 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 IDDB13442
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 LinkCitiolone
METLIN IDNot Available
PubChem Compound14520
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 ]