# Acetic acid, 2-amino-2-oxo-, sodium salt (1:1)

CAS: 565-73-1
PubChem CID: 5242
InChIKey: RQVZIJIQDCGIKI-UHFFFAOYSA-M
Wikidata: Q72508045
Molecular formula: C₂H₂NNaO₃
Molar mass: 111.03 g/mol
IUPAC: sodium oxamate
SMILES: C(=O)(C(=O)[O-])N.[Na+]
InChI: InChI=1S/C2H3NO3.Na/c3-1(4)2(5)6;/h(H2,3,4)(H,5,6);/q;+1/p-1
PSA: 83.2 A^2
Hydrogen bond donors: 1
Hydrogen bond acceptors: 3
Rotatable bonds: 1
Heavy atoms: 7
3D structure: 9 atoms, 8 bonds

## About the compound

Acetic acid, 2-amino-2-oxo-, sodium salt (1:1) is a chemical compound registered under CAS number 565-73-1. Molecular formula: C₂H₂NNaO₃. Molar mass: 111.03 g/mol. The full systematic IUPAC name is: sodium oxamate. The molecule contains 9 atoms connected by 8 chemical bonds. 
Chemical data comes from the PubChem (NIH), ChEMBL (EBI) and NIST WebBook databases. GHS statement translations comply with the CLP Regulation (EC 1272/2008). Interactive 3D model and 2D skeleton available at: https://molgod.org/molecule/565-73-1/


## Synonyms

  - 565-73-1
  - Oxamic acid, sodium salt
  - Acetic acid, aminooxo-, monosodium salt
  - EINECS 209-290-5
  - Acetic acid, 2-amino-2-oxo-, sodium salt (1:1)
  - RefChem:552125
  - sodium oxamate
  - Oxamic acid sodium salt
  - Sodium 2-amino-2-oxoacetate
  - Aminooxoacetic acid sodium salt
  - sodium;oxamate
  - Oxamic acid (sodium)

## Data sources

  - PubChem CID 5242: https://pubchem.ncbi.nlm.nih.gov/compound/5242
  - Wikidata: https://www.wikidata.org/wiki/Q72508045
  - NIST WebBook: https://webbook.nist.gov/cgi/cbook.cgi?ID=565-73-1
  - ChEMBL: https://www.ebi.ac.uk/chembl/g/#search_results/all/query=565-73-1

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Last updated: 2026-10-17
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