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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-09-11 19:45:05 UTC
Update Date2021-09-26 23:15:08 UTC
HMDB IDHMDB0258328
Secondary Accession NumbersNone
Metabolite Identification
Common Name4-Methyl-3-[4-(4-oxopyridin-1-yl)phenyl]-4,5-dihydro-1H-pyridazin-6-one
Description1-[4-(6-hydroxy-4-methyl-4,5-dihydropyridazin-3-yl)phenyl]-1,4-dihydropyridin-4-one belongs to the class of organic compounds known as pyridazinones. Pyridazinones are compounds containing a pyridazine ring which bears a ketone. Based on a literature review very few articles have been published on 1-[4-(6-hydroxy-4-methyl-4,5-dihydropyridazin-3-yl)phenyl]-1,4-dihydropyridin-4-one. This compound has been identified in human blood as reported by (PMID: 31557052 ). 4-methyl-3-[4-(4-oxopyridin-1-yl)phenyl]-4,5-dihydro-1h-pyridazin-6-one is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically 4-Methyl-3-[4-(4-oxopyridin-1-yl)phenyl]-4,5-dihydro-1H-pyridazin-6-one 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
SynonymsNot Available
Chemical FormulaC16H15N3O2
Average Molecular Weight281.315
Monoisotopic Molecular Weight281.116426735
IUPAC Name5-methyl-6-[4-(4-oxo-1,4-dihydropyridin-1-yl)phenyl]-2,3,4,5-tetrahydropyridazin-3-one
Traditional Name5-methyl-6-[4-(4-oxopyridin-1-yl)phenyl]-4,5-dihydro-2H-pyridazin-3-one
CAS Registry NumberNot Available
SMILES
CC1CC(=O)NN=C1C1=CC=C(C=C1)N1C=CC(=O)C=C1
InChI Identifier
InChI=1S/C16H15N3O2/c1-11-10-15(21)17-18-16(11)12-2-4-13(5-3-12)19-8-6-14(20)7-9-19/h2-9,11H,10H2,1H3,(H,17,21)
InChI KeyOOTPDLYEDHRWNL-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as pyridazinones. Pyridazinones are compounds containing a pyridazine ring which bears a ketone.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassDiazines
Sub ClassPyridazines and derivatives
Direct ParentPyridazinones
Alternative Parents
Substituents
  • Pyridazinone
  • Dihydropyridine
  • Benzenoid
  • Pyridine
  • Hydropyridine
  • Monocyclic benzene moiety
  • Heteroaromatic compound
  • Vinylogous amide
  • Cyclic ketone
  • Azacycle
  • Carboxylic acid derivative
  • Organic nitrogen compound
  • Organic oxygen compound
  • Organopnictogen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organooxygen compound
  • Organonitrogen compound
  • Carbonyl group
  • 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
logP1.78ALOGPS
logP1.97ChemAxon
logS-3.2ALOGPS
pKa (Strongest Acidic)11.79ChemAxon
pKa (Strongest Basic)5.63ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area61.77 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity81.56 m³·mol⁻¹ChemAxon
Polarizability30.04 ųChemAxon
Number of Rings3ChemAxon
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]+169.54430932474
DeepCCS[M-H]-167.18630932474
DeepCCS[M-2H]-200.07330932474
DeepCCS[M+Na]+175.63830932474
AllCCS[M+H]+166.732859911
AllCCS[M+H-H2O]+163.032859911
AllCCS[M+NH4]+170.132859911
AllCCS[M+Na]+171.132859911
AllCCS[M-H]-170.932859911
AllCCS[M+Na-2H]-170.332859911
AllCCS[M+HCOO]-169.932859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
4-Methyl-3-[4-(4-oxopyridin-1-yl)phenyl]-4,5-dihydro-1H-pyridazin-6-oneCC1CC(=O)NN=C1C1=CC=C(C=C1)N1C=CC(=O)C=C13809.1Standard polar33892256
4-Methyl-3-[4-(4-oxopyridin-1-yl)phenyl]-4,5-dihydro-1H-pyridazin-6-oneCC1CC(=O)NN=C1C1=CC=C(C=C1)N1C=CC(=O)C=C12713.1Standard non polar33892256
4-Methyl-3-[4-(4-oxopyridin-1-yl)phenyl]-4,5-dihydro-1H-pyridazin-6-oneCC1CC(=O)NN=C1C1=CC=C(C=C1)N1C=CC(=O)C=C13221.2Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
4-Methyl-3-[4-(4-oxopyridin-1-yl)phenyl]-4,5-dihydro-1H-pyridazin-6-one,1TMS,isomer #1CC1CC(=O)N([Si](C)(C)C)N=C1C1=CC=C(N2C=CC(=O)C=C2)C=C12934.7Semi standard non polar33892256
4-Methyl-3-[4-(4-oxopyridin-1-yl)phenyl]-4,5-dihydro-1H-pyridazin-6-one,1TMS,isomer #1CC1CC(=O)N([Si](C)(C)C)N=C1C1=CC=C(N2C=CC(=O)C=C2)C=C13048.5Standard non polar33892256
4-Methyl-3-[4-(4-oxopyridin-1-yl)phenyl]-4,5-dihydro-1H-pyridazin-6-one,1TMS,isomer #1CC1CC(=O)N([Si](C)(C)C)N=C1C1=CC=C(N2C=CC(=O)C=C2)C=C14144.6Standard polar33892256
4-Methyl-3-[4-(4-oxopyridin-1-yl)phenyl]-4,5-dihydro-1H-pyridazin-6-one,1TBDMS,isomer #1CC1CC(=O)N([Si](C)(C)C(C)(C)C)N=C1C1=CC=C(N2C=CC(=O)C=C2)C=C13209.9Semi standard non polar33892256
4-Methyl-3-[4-(4-oxopyridin-1-yl)phenyl]-4,5-dihydro-1H-pyridazin-6-one,1TBDMS,isomer #1CC1CC(=O)N([Si](C)(C)C(C)(C)C)N=C1C1=CC=C(N2C=CC(=O)C=C2)C=C13282.5Standard non polar33892256
4-Methyl-3-[4-(4-oxopyridin-1-yl)phenyl]-4,5-dihydro-1H-pyridazin-6-one,1TBDMS,isomer #1CC1CC(=O)N([Si](C)(C)C(C)(C)C)N=C1C1=CC=C(N2C=CC(=O)C=C2)C=C14201.1Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - 4-Methyl-3-[4-(4-oxopyridin-1-yl)phenyl]-4,5-dihydro-1H-pyridazin-6-one GC-MS (Non-derivatized) - 70eV, Positivesplash10-0jb9-1190000000-47d3b9eb3bddeca92ea02021-09-23Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 4-Methyl-3-[4-(4-oxopyridin-1-yl)phenyl]-4,5-dihydro-1H-pyridazin-6-one GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart 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 IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDNot Available
KNApSAcK IDNot Available
Chemspider ID115604
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound130702
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 ]