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Molecule record

2-oxo-1H-pyridine-4-carboxylic acid

C6H5NO3

139.11 g/mol

Loading structure

Molecular properties

Formula
C6H5NO3
Molar mass
139.11 g·mol−1
Exact mass
139.0269 Da
5
PubChem CID
280756

Functional groups

Aromatic ring
Carboxylic acid

Physical properties

No source-backed physical properties are curated for this molecule yet.

Common names and synonyms

  • 2-HYDROXYPYRIDINE-4-CARBOXYLIC ACID
  • 2-Hydroxy-4-pyridinecarboxylic acid
  • 2-Hydroxy-isonicotinic acid
  • 2-Hydroxyisonicitonic Acid
  • 2-Hydroxyisonicotinic acid
  • 2-Hydroxyisonicotinic acid, AldrichCPR
  • 2-oxo-1,2-dihydropyridine-4-carboxylic acid
  • 22282-72-0
Show all 24 synonyms
  • 4-Pyridinecarboxylic acid, 1,2-dihydro-2-oxo-
  • 835-024-8
  • 947-323-1
  • AKOS000732735
  • AM20061702
  • HY-W002765
  • MFCD01318566
  • NSC-132888
  • NSC132888
  • RefChem:473460
  • SCHEMBL1255885
  • SCHEMBL186166
  • SCHEMBL29643176
  • TS-01796
  • Z1416200909
  • orb2940416

Structure identifiers

Canonical SMILES
O=C(O)c1cc[nH]c(=O)c1
Isomeric SMILES
C1=CNC(=O)C=C1C(=O)O
InChI
InChI=1S/C6H5NO3/c8-5-3-4(6(9)10)1-2-7-5/h1-3H,(H,7,8)(H,9,10)
InChIKey
BXHCJLRTXPHUGH-UHFFFAOYSA-N
PubChem CID
280756

Spectroscopy

Tabs appear only for spectra stored with clear provenance.

Open library
No redistributable or simulated spectroscopy record is attached yet.

Simulated NMR

On-demand educational prediction for 2-oxo-1H-pyridine-4-carboxylic acid; not experimental data.

Simulated EI mass spectrum

On-demand educational fragmentation for 2-oxo-1H-pyridine-4-carboxylic acid; not experimental data.

Sources

Molecule identity

Retrieved 8/20/2026. Reuse status is summarized by the badge; open the source for full details.

PubChem(link only)
Open source record