Potassium Oleate

CAS 143-18-0  ·  C₁₈H₃₃KO₂  ·  MW 320.6 g/mol

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3D model Potassium Oleate, CAS 143-18-0, molecular formula C₁₈H₃₃KO₂, molar mass 320.6 g/mol

Model views

  • Potassium Oleate (CAS 143-18-0) – ball-and-stick 3D model, MolGod Viewer
    ball-and-stick 3D model
  • Potassium Oleate (CAS 143-18-0) – skeletal 3D model, MolGod Viewer
    skeletal 3D model
  • Potassium Oleate (CAS 143-18-0) – space-filling 3D model, MolGod Viewer
    space-filling 3D model
  • Potassium Oleate (CAS 143-18-0) – 2D structure, MolGod Viewer
    2D structure

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About Potassium Oleate

Potassium Oleate is a chemical compound registered under number CAS 143-18-0, with the molecular formula C₁₈H₃₃KO₂, and a molar mass of 320.6 g/mol.

The molecule contains 54 atoms connected by 53 chemical bonds. The full systematic IUPAC name of this compound is potassium (Z)-octadec-9-enoate. The interactive 3D model above lets you view the spatial arrangement of the atoms — you can rotate it with the mouse, zoom with the scroll wheel, and switch between skeletal / Ball & Stick / Space Fill visualization modes.

In terms of physicochemical properties, polar surface area PSA = 40.1 Ų, 0 donors and 2 hydrogen bond acceptors. These parameters are key when assessing bioavailability and interaction with biomolecules.

Chemical data for this compound comes from PubChem (NIH NLM NCBI), one of the world's largest chemical databases. All information is updated automatically and enriched with GHS hazard statement translations compliant with the CLP Regulation (EC 1272/2008). The widget above may be used for educational, research and commercial purposes.

Physicochemical properties
Molecular formulaC₁₈H₃₃KO₂
Molar mass320.6 g/mol
IUPACpotassium (Z)-octadec-9-enoate
SMILESCCCCCCCC/C=C\CCCCCCCC(=O)[O-].[K+]
InChIKeyMLICVSDCCDDWMD-KVVVOXFISA-M
logP (XLogP3)—
PSA40.1 Ų
HBD / HBA0 / 2
PubChem CIDCID 23665571 ↗
GHS safety

Signal word: Warning

GHS07
GHS07
GHS09
GHS09

H319 — Causes serious eye irritation

H315 — Causes skin irritation

H400 — Very toxic to aquatic life

H410 — Very toxic to aquatic life with long lasting effects

Scientific literature

Related literature

20 articles · 6 open access · Sources: PubMed, OpenAlex, Semantic Scholar

Filters:Export:📄 BibTeX📑 RIS📋 EndNote🔧 CSL-JSON

📈 Publication timeline (number of articles: 20)

1923: number of articles 119231924: number of articles 11926: number of articles 11963: number of articles 11964: number of articles 11977: number of articles 11978: number of articles 11987: number of articles 11998: number of articles 119982007: number of articles 22014: number of articles 12015: number of articles 12017: number of articles 12018: number of articles 12022: number of articles 12023: number of articles 32026: number of articles 12026

Bar height = number of articles in a given year. Hover over a bar to see details.

Data from PubMed (NIH NLM), OpenAlex (CC0), Semantic Scholar (AI2). AI Summary generated by Semantic Scholar TLDR. Articles marked with require paid access.

Synonyms
Potassium oleate · 143-18-0 · Oleic acid potassium salt · Trenamine D-200 · Trenamine D-201 · Caswell No. 698B · HSDB 5643 · POTASSIUM CIS-9-OCTADECENOIC ACID · Potassium 9-octadecenoate, (Z)- · EINECS 205-590-5 · EPA Pesticide Chemical Code 079095 · 74WHF607EU · 9-Octadecenoic acid (Z)-, potassium salt · 9-Octadecenoic acid, potassium salt · POTASSIUM OLEATE [MI]
Data sources
Related molecules
📜 License & provenancePREDICTED MODEL · NOT VERIFIEDMolGod_License_1
PREDICTED MODEL — NOT VERIFIED
computed by MolGod Scientific · experimental feature (beta) · may contain errors
ILLUSTRATIVE FRAGMENT ARRANGEMENT — relative positions are not structural data

No source 3-D conformer was available to MolGod for this substance. MolGod Scientific computed this geometry from the structural formula with RDKit 2026.03.6 (ETKDGv3 conformer generation, MMFF94 force-field optimisation; lowest-energy converged conformer of a fixed-seed set). It is not a measured structure, it does not come from PubChem, and it has not been compared with experimental data. It shows one possible conformation.

This substance consists of 2 separate components (for example ions). Each component was computed separately; they are arranged radially around a layout anchor for visualisation only (at least 3.0 Å apart). Their relative positions are not a crystal structure, coordination geometry, ionic contacts or any experimentally determined arrangement.

Methods and references
  1. RDKit: Open-source cheminformatics, version 2026.03.6. Zenodo. doi:10.5281/zenodo.22140358 (all versions: doi:10.5281/zenodo.591637)
  2. Riniker S, Landrum GA. Better Informed Distance Geometry: Using What We Know To Improve Conformation Generation. J. Chem. Inf. Model. 2015, 55, 2562-2574. doi:10.1021/acs.jcim.5b00654
  3. Wang S, Witek J, Landrum GA, Riniker S. Improving Conformer Generation for Small Rings and Macrocycles Based on Distance Geometry and Experimental Torsional-Angle Preferences. J. Chem. Inf. Model. 2020, 60, 2044-2058. doi:10.1021/acs.jcim.0c00025
  4. Halgren TA. Merck molecular force field. I. Basis, form, scope, parameterization, and performance of MMFF94. J. Comput. Chem. 1996, 17, 490-519. doi:10.1002/(SICI)1096-987X(199604)17:5/6<490::AID-JCC1>3.0.CO;2-P
  5. Tosco P, Stiefl N, Landrum G. Bringing the MMFF force field to the RDKit: implementation and validation. J. Cheminform. 2014, 6, 37. doi:10.1186/s13321-014-0037-3
  6. Heller SR, McNaught A, Pletnev I, Stein S, Tchekhovskoi D. InChI, the IUPAC International Chemical Identifier. J. Cheminform. 2015, 7, 23. doi:10.1186/s13321-015-0068-4
  7. Kim S, Chen J, Cheng T, et al. PubChem 2025 update. Nucleic Acids Res. 2025, 53, D1516-D1525. doi:10.1093/nar/gkae1059 Compound record: https://pubchem.ncbi.nlm.nih.gov/compound/23665571
  8. Bolton EE, Kim S, Bryant SH. PubChem3D: Conformer generation. J. Cheminform. 2011, 3, 4. doi:10.1186/1758-2946-3-4 (cited for contrast: no source 3-D conformer was available to MolGod for this record)
Potassium Oleate (CAS 143-18-0), C₁₈H₃₃KO₂ - 3D ball-and-stick molecular model, engraved element symbols (C H K O), MolGod STL previewDownload image

MG-STL-143-18-0-ENGRAVED · 625,368 △ · 30 MB · SHA-256 188064d78adc3f94

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Potassium Oleate (CAS 143-18-0), C₁₈H₃₃KO₂ - 3D ball-and-stick molecular model, MolGod STL previewDownload image

MG-STL-143-18-0-NORMAL · 22,464 △ · 1 MB · SHA-256 449eea4d88a3a273

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Model
Potassium Oleate · 143-18-0
InChIKey
MLICVSDCCDDWMD-KVVVOXFISA-M
License
CC BY-SA 4.0 International (source rights undetermined — not yet granted)
Attribution
MolGod Scientific — Potassium Oleate (CAS 143-18-0)
License & provenance record
Potassium Oleate (CAS 143-18-0) →
MolGod molecule record
Potassium Oleate →
Source data
PubChem CID 23665571 ↗
Model information
STL generated by MolGod · MolGod STL Exporter build 48804cd20b0d · generated 2026-10-14
SHA-256 (STL)
449eea4d88a3a27348330bf4cbb9fb4c476129e7ed5cc45107d5570f9cd2d0b7
MD5 (STL)
bf87d85f8755435c7a0234d6f417be4a
Model identifier
MG-STL-143-18-0
Transformation
MolGod Scientific ball-and-stick mesh
Changes
PREDICTED geometry computed by MolGod Scientific (RDKit), NOT verified; rendered as a triangulated mesh.
Wikimedia Commons
not published yet

This license applies to the MolGod-created STL mesh, not automatically to third-party source material.

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