# Potassium Stearate

CAS: 593-29-3
PubChem CID: 23673840
InChIKey: ANBFRLKBEIFNQU-UHFFFAOYSA-M
Wikidata: Q15629420
Molecular formula: C₁₈H₃₅KO₂
Molar mass: 322.6 g/mol
IUPAC: potassium octadecanoate
SMILES: CCCCCCCCCCCCCCCCCC(=O)[O-].[K+]
InChI: InChI=1S/C18H36O2.K/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20;/h2-17H2,1H3,(H,19,20);/q;+1/p-1
PSA: 40.1 A^2
Hydrogen bond donors: 0
Hydrogen bond acceptors: 2
Rotatable bonds: 16
Heavy atoms: 21
3D structure: 56 atoms, 55 bonds

## About the compound

Potassium Stearate is a chemical compound registered under CAS number 593-29-3. Molecular formula: C₁₈H₃₅KO₂. Molar mass: 322.6 g/mol. The full systematic IUPAC name is: potassium octadecanoate. The molecule contains 56 atoms connected by 55 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/593-29-3/


## Synonyms

  - POTASSIUM STEARATE
  - 593-29-3
  - Potassium octadecanoate
  - Octadecanoic acid, potassium salt
  - Potassium stearate, pure
  - Potassium n-octadecanoate
  - EINECS 209-786-1
  - REXANOL
  - UNII-17V812XK50
  - NONSOUL MK 2
  - 17V812XK50
  - POTASSIUM STEARATE [MI]

## Data sources

  - PubChem CID 23673840: https://pubchem.ncbi.nlm.nih.gov/compound/23673840
  - Wikidata: https://www.wikidata.org/wiki/Q15629420
  - NIST WebBook: https://webbook.nist.gov/cgi/cbook.cgi?ID=593-29-3
  - ChEMBL: https://www.ebi.ac.uk/chembl/g/#search_results/all/query=593-29-3

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Last updated: 2026-10-17
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