Hmdb loader
Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-09-11 13:53:05 UTC
Update Date2021-09-26 23:08:35 UTC
HMDB IDHMDB0254527
Secondary Accession NumbersNone
Metabolite Identification
Common NameMethidathion
DescriptionMethidathion, also known as supracide, belongs to the class of organic compounds known as 1,3,4-thiadiazol-3-yl-organothiophosphates. These are aromatic heterocyclic compounds containing a 1,3,4-thiadiazole ring, which is substituted at the 2-position with an organothiophosphate group. Acetylcholine esterase breaks down the neurotransmitter acetylcholine, which is released at nerve and muscle junctions, in order to allow the muscle or organ to relax. Increasing muscle weakness is a possibility and may result in death if respiratory muscles are involved. Methidathion is an extremely weak basic (essentially neutral) compound (based on its pKa). Methidathion is a potentially toxic compound. In females menstrual cycle disturbances, longer pregnancies, spontaneous abortions, stillbirths, and some developmental effects in offspring have been linked to organophosphate pesticide exposure. This compound has been identified in human blood as reported by (PMID: 31557052 ). Methidathion is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically Methidathion 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
Phosphorodithioic acid, S-[(5-methoxy-2-oxo-1,3,4-thiadiazol-3(2H)-yl)methyl] O,O-dimethyl esterChEBI
S-(2,3-Dihydro-5-methoxy-2-oxo-1,3,4-thiadiazol-3-methyl) dimethyl phosphorothiolothionateChEBI
S-[(5-Methoxy-2-oxo-1,3,4-thiadiazol-3(2H)-yl)methyl] O,O-dimethyl dithiophosphateChEBI
SupracideChEBI
Phosphorodithioate, S-[(5-methoxy-2-oxo-1,3,4-thiadiazol-3(2H)-yl)methyl] O,O-dimethyl esterGenerator
S-(2,3-Dihydro-5-methoxy-2-oxo-1,3,4-thiadiazol-3-methyl) dimethyl phosphorothiolothionic acidGenerator
S-[(5-Methoxy-2-oxo-1,3,4-thiadiazol-3(2H)-yl)methyl] O,O-dimethyl dithiophosphoric acidGenerator
O,O-Dimethyl S-(2-methoxy-1,3,4-thiadiazole-5)-(4H)-onyl-(4)-methylphosphorodithioateMeSH
S-2,3-dihydro-5-Methoxy-2-oxo-1,3,4-thiadiazol-3-ylmethyl O,O-dimethyl phosphorodithioateMeSH
S-(5-Methoxy-2-oxo-1,3,4-thiadiazol-3-(2H)-yl) O,O-dimethylphosphorodithioateMeSH
MetidathionMeSH
Chemical FormulaC6H11N2O4PS3
Average Molecular Weight302.331
Monoisotopic Molecular Weight301.961855432
IUPAC NameO,O-dimethyl {[(5-methoxy-2-oxo-2,3-dihydro-1,3,4-thiadiazol-3-yl)methyl]sulfanyl}phosphonothioate
Traditional NameO,O-dimethyl [(5-methoxy-2-oxo-1,3,4-thiadiazol-3-yl)methyl]sulfanylphosphonothioate
CAS Registry NumberNot Available
SMILES
COC1=NN(CSP(=S)(OC)OC)C(=O)S1
InChI Identifier
InChI=1S/C6H11N2O4PS3/c1-10-5-7-8(6(9)16-5)4-15-13(14,11-2)12-3/h4H2,1-3H3
InChI KeyMEBQXILRKZHVCX-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as 1,3,4-thiadiazol-3-yl-organothiophosphates. These are aromatic heterocyclic compounds containing a 1,3,4-thiadiazole ring, which is substituted at the 2-position with an organothiophosphate group.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassAzoles
Sub ClassThiadiazoles
Direct Parent1,3,4-thiadiazol-3-yl-organothiophosphates
Alternative Parents
Substituents
  • 1,3,4-thiadiazol-3-yl-organothiophosphate
  • Alkyl aryl ether
  • Dithiophosphate s-ester
  • Dithiophosphate o-ester
  • Heteroaromatic compound
  • Organic dithiophosphate
  • Azacycle
  • Sulfenyl compound
  • Organothiophosphorus compound
  • Ether
  • Organic oxide
  • Hydrocarbon derivative
  • Organic nitrogen compound
  • Organosulfur compound
  • Organooxygen compound
  • Organonitrogen compound
  • Organopnictogen compound
  • Organic oxygen compound
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic compounds
External Descriptors
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
Role
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
logP1.18ALOGPS
logP2.29ChemAxon
logS-2.2ALOGPS
pKa (Strongest Basic)-9.8ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area60.36 ŲChemAxon
Rotatable Bond Count6ChemAxon
Refractivity70.01 m³·mol⁻¹ChemAxon
Polarizability26.97 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]+151.44730932474
DeepCCS[M-H]-148.80230932474
DeepCCS[M-2H]-184.30730932474
DeepCCS[M+Na]+160.09330932474
AllCCS[M+H]+150.832859911
AllCCS[M+H-H2O]+148.332859911
AllCCS[M+NH4]+153.132859911
AllCCS[M+Na]+153.832859911
AllCCS[M-H]-148.732859911
AllCCS[M+Na-2H]-149.332859911
AllCCS[M+HCOO]-150.032859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
MethidathionCOC1=NN(CSP(=S)(OC)OC)C(=O)S13160.1Standard polar33892256
MethidathionCOC1=NN(CSP(=S)(OC)OC)C(=O)S12038.1Standard non polar33892256
MethidathionCOC1=NN(CSP(=S)(OC)OC)C(=O)S12064.9Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Methidathion GC-MS (Non-derivatized) - 70eV, Positivesplash10-0229-9650000000-90b86210e49548eefd282021-09-23Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Methidathion GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
MSMass Spectrum (Electron Ionization)splash10-000b-9600000000-e57a196ea91d0a871b8b2014-10-20Not AvailableView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Experimental LC-MS/MSLC-MS/MS Spectrum - Methidathion 90V, Positive-QTOFsplash10-0a4i-9000000000-65a78dd3d363cf20902a2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Methidathion 75V, Positive-QTOFsplash10-0abi-9000000000-afbf99f53ac04c355e2b2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Methidathion 60V, Positive-QTOFsplash10-059i-9000000000-a25f5e4e21a4a79e5ed92021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Methidathion 45V, Positive-QTOFsplash10-0079-9100000000-d08ecb728b3e5637fa892021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Methidathion 15V, Positive-QTOFsplash10-0002-2900000000-abce1a72497794da15392021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Methidathion 30V, Positive-QTOFsplash10-007a-9500000000-cbfe306a168d0eee91de2021-09-20HMDB team, MONAView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Methidathion 10V, Positive-QTOFsplash10-0ufr-0669000000-4c08c979983bd7c9d7a42016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Methidathion 20V, Positive-QTOFsplash10-0udi-3519000000-c37f9b32d5943c8632832016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Methidathion 40V, Positive-QTOFsplash10-014i-0900000000-065add8950330d0fc0e72016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Methidathion 10V, Negative-QTOFsplash10-0udi-4279000000-fea55d07d8b4df13a9202016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Methidathion 20V, Negative-QTOFsplash10-0a4i-9000000000-6250bc1397d71de7f6c52016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Methidathion 40V, Negative-QTOFsplash10-0a4i-9000000000-5da9ff2c3db6b25a255b2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Methidathion 10V, Positive-QTOFsplash10-0f6t-0906000000-bd6e03ff86b320d351672021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Methidathion 20V, Positive-QTOFsplash10-00di-0900000000-82ead2f9508545c8fe362021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Methidathion 40V, Positive-QTOFsplash10-00di-5900000000-3699972d20ee29ae1f542021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Methidathion 10V, Negative-QTOFsplash10-0uk9-0609000000-0c4f0554b3910a4e954e2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Methidathion 20V, Negative-QTOFsplash10-00di-0901000000-55914153d26da6a92b692021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Methidathion 40V, Negative-QTOFsplash10-0a4l-4900000000-abaad0569a52715d1c432021-10-12Wishart LabView Spectrum

NMR Spectra

Spectrum TypeDescriptionDeposition DateSourceView
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 IDNot Available
KEGG Compound IDC14431
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkMethidathion
METLIN IDNot Available
PubChem Compound13709
PDB IDNot Available
ChEBI ID34837
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 ]