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Record Information
Version1.0
Creation Date2016-09-30 22:18:30 UTC
Update Date2020-05-21 16:28:54 UTC
BMDB IDBMDB0000017
Secondary Accession Numbers
  • BMDB00017
Metabolite Identification
Common Name4-Pyridoxic acid
Description4-4-4-pyridoxic acid, also known as 4-4-pyridoxic 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. 4-4-4-pyridoxic acid exists as a solid, possibly soluble (in water), and a strong basic compound (based on its pKa) molecule. 4-4-4-pyridoxic acid exists in all living organisms, ranging from bacteria to humans. 4-4-4-pyridoxic acid can be biosynthesized from pyridoxal; which is catalyzed by the enzyme aldehyde oxidase. In cattle, 4-4-pyridoxic acid is involved in the metabolic pathway called the vitamin B6 metabolism pathway.
Structure
Thumb
Synonyms
ValueSource
2-Methyl-3-hydroxy-4-carboxy-5-hydroxymethylpyridineChEBI
3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinic acidChEBI
4-PyridoxateChEBI
4-Pyridoxinecarboxylic acidChEBI
4-Pyridoxinic acidChEBI
4-Pyridoxylic acidChEBI
Pyridoxic acidChEBI
3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinateGenerator
4-PyridoxinecarboxylateGenerator
4-PyridoxinateGenerator
4-PyridoxylateGenerator
PyridoxateGenerator
3-Hydroxy-5-(hydroxymethyl)-2-methyl-4-pyridinecarboxylateHMDB
3-Hydroxy-5-(hydroxymethyl)-2-methyl-4-pyridinecarboxylic acidHMDB
3-Hydroxy-5-(hydroxymethyl)-2-methyl-isonicotinateHMDB
3-Hydroxy-5-(hydroxymethyl)-2-methyl-isonicotinic acidHMDB
3-Hydroxy-5-hydroxymethyl-2-methyl-isonicotinateHMDB
3-Hydroxy-5-hydroxymethyl-2-methyl-isonicotinic acidHMDB
3-Hydroxy-5-hydroxymethyl-2-methyl-isonicotinsaeureHMDB
4-PyridoxinsaeureHMDB
4 Pyridoxinic acidHMDB
Pyridoxinecarboxylic acidHMDB
4 Pyridoxylic acidHMDB
4 Pyridoxic acidHMDB
Chemical FormulaC8H9NO4
Average Molecular Weight183.1614
Monoisotopic Molecular Weight183.053157781
IUPAC Name3-hydroxy-5-(hydroxymethyl)-2-methylpyridine-4-carboxylic acid
Traditional Namepyridoxic acid
CAS Registry Number82-82-6
SMILES
CC1=NC=C(CO)C(C(O)=O)=C1O
InChI Identifier
InChI=1S/C8H9NO4/c1-4-7(11)6(8(12)13)5(3-10)2-9-4/h2,10-11H,3H2,1H3,(H,12,13)
InChI KeyHXACOUQIXZGNBF-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
  • Hydroxypyridine
  • Methylpyridine
  • Vinylogous acid
  • Heteroaromatic compound
  • Azacycle
  • Monocarboxylic acid or derivatives
  • Carboxylic acid
  • Carboxylic acid derivative
  • Organic oxygen compound
  • Hydrocarbon derivative
  • Alcohol
  • Aromatic alcohol
  • Organic nitrogen compound
  • Primary alcohol
  • Organooxygen compound
  • Organonitrogen compound
  • Organopnictogen compound
  • Organic oxide
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic compounds
External Descriptors
Ontology
StatusExpected but not Quantified
Origin
  • Endogenous
BiofunctionNot Available
ApplicationNot Available
Cellular locations
  • Cytoplasm
Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting Point247 - 248 °CNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
logP-0.08ALOGPS
logP-0.75ChemAxon
logS-1.3ALOGPS
pKa (Strongest Acidic)2.55ChemAxon
pKa (Strongest Basic)4.09ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count5ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area90.65 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity44.55 m³·mol⁻¹ChemAxon
Polarizability17.19 ųChemAxon
Number of Rings1ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash Key
GC-MSGC-MS Spectrum - GC-MS (3 TMS)splash10-0600-1594000000-399002a1b2bc22455c9fView in MoNA
GC-MSGC-MS Spectrum - GC-MS (Non-derivatized)splash10-0600-1594000000-399002a1b2bc22455c9fView in MoNA
GC-MSGC-MS Spectrum - GC-EI-TOF (Non-derivatized)splash10-0002-0963000000-5ea1f1ffe15dc2478b63View in MoNA
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-0uxr-0900000000-fa35397acddd7c3351b8View in MoNA
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (3 TMS) - 70eV, Positivesplash10-00c0-6029000000-e59f960993866934b8ccView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 10V, Positivesplash10-001i-0900000000-4f9434fb63b0ad0ce994View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 20V, Positivesplash10-014i-0900000000-99753fc7dd56422dd423View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 30V, Positivesplash10-0002-0900000000-6e2e1f60d8bebc0b3340View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 40V, Positivesplash10-0002-6900000000-8c038db01c62f9d4e87bView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 50V, Positivesplash10-014i-9200000000-a94133cf31fe1f8b7938View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF (UPLC Q-Tof Premier, Waters) , Positivesplash10-00kb-0900000000-d57234d89d8c011abfb4View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF (UPLC Q-Tof Premier, Waters) 30V, Positivesplash10-00kb-7900000000-a99b8437514399d65abaView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF (UPLC Q-Tof Premier, Waters) , Negativesplash10-052r-0900000000-725f61f22b0bc1a28b93View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-IT , negativesplash10-000i-0900000000-79e29b063e250dd7037bView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF , negativesplash10-052r-0900000000-725f61f22b0bc1a28b93View in MoNA
LC-MS/MSLC-MS/MS Spectrum - , negativesplash10-000i-0900000000-f82707706c2653c46393View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , positivesplash10-001i-0900000000-4f9434fb63b0ad0ce994View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , positivesplash10-014i-0900000000-2c70b549625fa141234aView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , positivesplash10-0002-0900000000-2a37bda24c0b0f98132bView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , positivesplash10-0002-6900000000-d3f955b006cc32330eddView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , positivesplash10-014i-9200000000-8f0fa7a53eb7325318baView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF , positivesplash10-00kb-0900000000-d57234d89d8c011abfb4View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF , positivesplash10-00kb-7900000000-a99b8437514399d65abaView in MoNA
LC-MS/MSLC-MS/MS Spectrum - , positivesplash10-014i-0900000000-df0aa00e8733225ac266View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0159-0900000000-5860f1285218e1907916View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-01ba-0900000000-463662790c3d6c47c8d1View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-00di-6900000000-eda84db35c5bfbd25cebView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-001r-0900000000-cdc1e6701650ec6b77f1View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0a4i-0900000000-fd70f5eeff9dec054259View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0a4i-7900000000-ff1dc4213c27146d1751View in MoNA
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
2D NMR[1H,13C] 2D NMR SpectrumNot AvailableView in JSpectraViewer
Biological Properties
Cellular Locations
  • Cytoplasm
Biospecimen Locations
  • Bladder
  • Erythrocyte
  • Kidney
  • Liver
  • Placenta
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BladderExpected but not QuantifiedNot ApplicableNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
ErythrocyteExpected but not QuantifiedNot ApplicableNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
KidneyExpected but not QuantifiedNot ApplicableNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
LiverExpected but not QuantifiedNot ApplicableNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
PlacentaExpected but not QuantifiedNot ApplicableNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
Abnormal Concentrations
Not Available
HMDB IDHMDB0000017
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB021874
KNApSAcK IDNot Available
Chemspider ID6467
KEGG Compound IDC00847
BioCyc IDCPD-1112
BiGG ID36190
Wikipedia LinkNot Available
METLIN ID239
PubChem Compound6723
PDB IDNot Available
ChEBI ID17405
References
Synthesis ReferenceSenkuma, Masahiko; Imada, Katsumi; Sato, Masatada. Preparation of 4-pyridoxic acid. Jpn. Kokai Tokkyo Koho (1992), 2 pp.
Material Safety Data Sheet (MSDS)Not Available
General ReferencesNot Available

Enzymes

General function:
Nucleotide transport and metabolism
Specific function:
Oxidase with broad substrate specificity, oxidizing aromatic azaheterocycles, such as N1-methylnicotinamide, N-methylphthalazinium and phthalazine, as well as aldehydes, such as benzaldehyde, retinal, pyridoxal, and vanillin. Plays a key role in the metabolism of xenobiotics and drugs containing aromatic azaheterocyclic substituents. Is probably involved in the regulation of reactive oxygen species homeostasis. May be a prominent source of superoxide generation via the one-electron reduction of molecular oxygen. Also may catalyze nitric oxide (NO) production via the reduction of nitrite to NO with NADH or aldehyde as electron donor. May play a role in adipogenesis.
Gene Name:
AOX1
Uniprot ID:
P48034
Molecular weight:
147611.0
Reactions
Pyridoxal + Oxygen + Water → 4-Pyridoxic acid + Hydrogen peroxidedetails