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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2013-06-18 18:41:54 UTC
Update Date2023-02-21 17:30:08 UTC
HMDB IDHMDB0060665
Secondary Accession Numbers
  • HMDB60665
Metabolite Identification
Common NameIsonicotinic acid
DescriptionIsonicotinic acid, also known as 4-carboxypyridine or gamma-picolinic acid, belongs to the class of organic compounds known as pyridinecarboxylic acids. Pyridinecarboxylic acids are compounds containing a pyridine ring bearing a carboxylic acid group. Isonicotinic acid is a moderately basic compound (based on its pKa). Isonicotinic acid is an organic compound with a carboxyl group on a pyridine ring. The carboxyl group for isonicotinic acid is on the 4-position instead of the 3-position for nicotinic acid (Wikipedia ). It is an isomer of nicotinic acid. Isonicotinic acid is a metabolite of isoniazid.
Structure
Data?1677000608
Synonyms
ValueSource
4-CarboxypyridineChEBI
4-Pyridinecarboxylic acidChEBI
gamma-Picolinic acidChEBI
gamma-Pyridinecarboxylic acidChEBI
p-Pyridinecarboxylic acidChEBI
4-PyridinecarboxylateGenerator
g-PicolinateGenerator
g-Picolinic acidGenerator
gamma-PicolinateGenerator
Γ-picolinateGenerator
Γ-picolinic acidGenerator
g-PyridinecarboxylateGenerator
g-Pyridinecarboxylic acidGenerator
gamma-PyridinecarboxylateGenerator
Γ-pyridinecarboxylateGenerator
Γ-pyridinecarboxylic acidGenerator
p-PyridinecarboxylateGenerator
IsonicotinateGenerator
Acid, isonicotinicHMDB
Acids, isonicotinicHMDB
Isonicotinic acidsHMDB
Chemical FormulaC6H5NO2
Average Molecular Weight123.1094
Monoisotopic Molecular Weight123.032028409
IUPAC Namepyridine-4-carboxylic acid
Traditional Nameisonicotinic acid
CAS Registry Number55-22-1
SMILES
OC(=O)C1=CC=NC=C1
InChI Identifier
InChI=1S/C6H5NO2/c8-6(9)5-1-3-7-4-2-5/h1-4H,(H,8,9)
InChI KeyTWBYWOBDOCUKOW-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as pyridinecarboxylic acids. Pyridinecarboxylic acids are compounds containing a pyridine ring bearing a carboxylic acid group.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassPyridines and derivatives
Sub ClassPyridinecarboxylic acids and derivatives
Direct ParentPyridinecarboxylic acids
Alternative Parents
Substituents
  • Pyridine carboxylic acid
  • Heteroaromatic compound
  • Azacycle
  • Monocarboxylic acid or derivatives
  • Carboxylic acid
  • Carboxylic acid derivative
  • Organic nitrogen compound
  • Organic oxygen compound
  • Organopnictogen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organooxygen compound
  • Organonitrogen compound
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic compounds
External Descriptors
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 Solubility68.1 g/LALOGPS
logP0.28ALOGPS
logP0.15ChemAxon
logS-0.26ALOGPS
pKa (Strongest Acidic)3.73ChemAxon
pKa (Strongest Basic)2.35ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area50.19 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity31.16 m³·mol⁻¹ChemAxon
Polarizability11.29 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
DarkChem[M+H]+124.97631661259
DarkChem[M-H]-117.43331661259
DeepCCS[M+H]+124.21830932474
DeepCCS[M-H]-121.14930932474
DeepCCS[M-2H]-157.92430932474
DeepCCS[M+Na]+133.04930932474
AllCCS[M+H]+125.432859911
AllCCS[M+H-H2O]+120.632859911
AllCCS[M+NH4]+130.032859911
AllCCS[M+Na]+131.332859911
AllCCS[M-H]-121.032859911
AllCCS[M+Na-2H]-123.032859911
AllCCS[M+HCOO]-125.332859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
Isonicotinic acidOC(=O)C1=CC=NC=C11970.9Standard polar33892256
Isonicotinic acidOC(=O)C1=CC=NC=C11275.5Standard non polar33892256
Isonicotinic acidOC(=O)C1=CC=NC=C11235.0Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
Isonicotinic acid,1TMS,isomer #1C[Si](C)(C)OC(=O)C1=CC=NC=C11273.1Semi standard non polar33892256
Isonicotinic acid,1TBDMS,isomer #1CC(C)(C)[Si](C)(C)OC(=O)C1=CC=NC=C11523.0Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Experimental GC-MSGC-MS Spectrum - Isonicotinic acid GC-EI-TOF (Non-derivatized)splash10-053r-0900000000-0e8b37e56297b7672e672017-09-12HMDB team, MONA, MassBankView Spectrum
Experimental GC-MSGC-MS Spectrum - Isonicotinic acid GC-EI-TOF (Non-derivatized)splash10-0540-0900000000-0673678e5fc7980445bd2017-09-12HMDB team, MONA, MassBankView Spectrum
Experimental GC-MSGC-MS Spectrum - Isonicotinic acid GC-EI-TOF (Non-derivatized)splash10-0569-5900000000-26eb2a99def38d4a22c82017-09-12HMDB team, MONA, MassBankView Spectrum
Experimental GC-MSGC-MS Spectrum - Isonicotinic acid GC-EI-TOF (Non-derivatized)splash10-053r-0900000000-0e8b37e56297b7672e672018-05-18HMDB team, MONA, MassBankView Spectrum
Experimental GC-MSGC-MS Spectrum - Isonicotinic acid GC-EI-TOF (Non-derivatized)splash10-0540-0900000000-0673678e5fc7980445bd2018-05-18HMDB team, MONA, MassBankView Spectrum
Experimental GC-MSGC-MS Spectrum - Isonicotinic acid GC-EI-TOF (Non-derivatized)splash10-0569-5900000000-26eb2a99def38d4a22c82018-05-18HMDB team, MONA, MassBankView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Isonicotinic acid GC-MS (Non-derivatized) - 70eV, Positivesplash10-05fr-7900000000-0cb296f8039d0be2482a2017-09-20Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Isonicotinic acid GC-MS (1 TMS) - 70eV, Positivesplash10-05fr-9600000000-b1182d94bed173f361022017-10-06Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Isonicotinic acid GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Experimental LC-MS/MSLC-MS/MS Spectrum - Isonicotinic acid LC-ESI-QTOF , negative-QTOFsplash10-004i-9300000000-5aefad195343881804362017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Isonicotinic acid LC-ESI-QQ , positive-QTOFsplash10-0ab9-0900000000-3f8ad29d172aa06e19c62017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Isonicotinic acid LC-ESI-QQ , positive-QTOFsplash10-00di-4900000000-04ecd2ded01bc6f9b4662017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Isonicotinic acid LC-ESI-QQ , positive-QTOFsplash10-001j-9100000000-b7a02f2f1331383545462017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Isonicotinic acid LC-ESI-QQ , positive-QTOFsplash10-003r-9000000000-ee099e60544c0326fdb72017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Isonicotinic acid LC-ESI-QQ , positive-QTOFsplash10-00os-9000020000-f6daab3d1a982cfd35ec2017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Isonicotinic acid LC-ESI-QTOF , positive-QTOFsplash10-00di-4900000000-c7fa977839a809bc26c92017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Isonicotinic acid LC-ESI-QTOF , positive-QTOFsplash10-003s-9100000000-187ccf119a0f683d93d02017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Isonicotinic acid 30V, Positive-QTOFsplash10-003s-9100000000-187ccf119a0f683d93d02021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Isonicotinic acid 10V, Positive-QTOFsplash10-00di-0900000000-f4662ceafd587b9b60772021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Isonicotinic acid 40V, Positive-QTOFsplash10-0ugi-9000000000-8e1d2e76371c68d4ffd22021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Isonicotinic acid 20V, Positive-QTOFsplash10-008a-9300000000-b2562aafef5b27aaf06f2021-09-20HMDB team, MONAView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isonicotinic acid 10V, Positive-QTOFsplash10-00di-0900000000-86289259e4a7d42b15242016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isonicotinic acid 20V, Positive-QTOFsplash10-00di-2900000000-ac2510c19cbda2467e172016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isonicotinic acid 40V, Positive-QTOFsplash10-0ue9-9100000000-96f139c16425aa89406b2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isonicotinic acid 10V, Negative-QTOFsplash10-00di-3900000000-5d743650a7f30a9296862016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isonicotinic acid 20V, Negative-QTOFsplash10-00b9-9500000000-e02450efac27b686ff392016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isonicotinic acid 40V, Negative-QTOFsplash10-004i-9000000000-2a4f9a6c9a5c178335682016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isonicotinic acid 10V, Positive-QTOFsplash10-05ai-6900000000-354dfc313106a4b42d692021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isonicotinic acid 20V, Positive-QTOFsplash10-0a4i-5900000000-4b667bfa85606aed0c8f2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isonicotinic acid 40V, Positive-QTOFsplash10-004i-9000000000-a99a61d126a314ed38dd2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isonicotinic acid 10V, Negative-QTOFsplash10-004i-9000000000-c2850ce6846335b0374d2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isonicotinic acid 20V, Negative-QTOFsplash10-004i-9000000000-c2850ce6846335b0374d2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isonicotinic acid 40V, Negative-QTOFsplash10-004i-9000000000-c2850ce6846335b0374d2021-10-12Wishart 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+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 LocationsNot Available
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 IDC07446
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkIsonicotinic_Acid
METLIN IDNot Available
PubChem Compound5922
PDB IDNot Available
ChEBI ID6032
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 ReferencesNot Available