Stearic acid amide

CAS 124-26-5  ·  C18H37NO  ·  MW 283.5 g/mol

Loading molecule...
3D model Stearic acid amide, CAS 124-26-5, molecular formula C18H37NO, molar mass 283.5 g/mol

Model views

  • Stearic acid amide (CAS 124-26-5) – ball-and-stick 3D model, MolGod Viewer
    ball-and-stick 3D model
  • Stearic acid amide (CAS 124-26-5) – skeletal 3D model, MolGod Viewer
    skeletal 3D model
  • Stearic acid amide (CAS 124-26-5) – space-filling 3D model, MolGod Viewer
    space-filling 3D model
  • Stearic acid amide (CAS 124-26-5) – 2D structure, MolGod Viewer
    2D structure

© 2026 MolGod.org. All rights reserved. · Image rights

About Stearic acid amide

Stearic acid amide is a chemical compound registered under number CAS 124-26-5, with the molecular formula C18H37NO, and a molar mass of 283.5 g/mol.

The molecule contains 57 atoms connected by 56 chemical bonds. The full systematic IUPAC name of this compound is octadecanamide. 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, the partition coefficient logP = 6.8 (positive value, a lipophilic compound), polar surface area PSA = 43.1 Ų, 1 donors and 1 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 formulaC18H37NO
Molar mass283.5 g/mol
IUPACoctadecanamide
SMILESCCCCCCCCCCCCCCCCCC(=O)N
InChIKeyLYRFLYHAGKPMFH-UHFFFAOYSA-N
logP (XLogP3)6.8
PSA43.1 Ų
HBD / HBA1 / 1
PubChem CIDCID 31292 ↗
Scientific literature

Related literature

3 articles · 0 open access · Sources: PubMed, OpenAlex, Semantic Scholar

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

📈 Publication timeline (number of articles: 3)

2009: number of articles 120092020: number of articles 120202021: number of articles 12021

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
Octadecanamide · Stearamide · 124-26-5 · STEARIC ACID AMIDE · Octadecamide · Octadecylamide · Stearylamide · Kemamide S · Stearoylamide · Stearoylamine · Stearic amide · Adogen 42 · NSC 66462 · CCRIS 6866 · HSDB 723
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

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.

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/31292
  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)
Stearic acid amide (CAS 124-26-5), C18H37NO - 3D ball-and-stick molecular model, engraved element symbols (C H N O), MolGod STL previewDownload image

MG-STL-124-26-5-ENGRAVED · 611,548 △ · 29 MB · SHA-256 40011e0c1e3ff0e3

Download 3D model · ENGRAVED · C H N O

Stearic acid amide (CAS 124-26-5), C18H37NO - 3D ball-and-stick molecular model, MolGod STL previewDownload image

MG-STL-124-26-5-NORMAL · 23,712 △ · 1 MB · SHA-256 c5f206dfb3a74856

Download 3D model

Model
Stearic acid amide · 124-26-5
InChIKey
LYRFLYHAGKPMFH-UHFFFAOYSA-N
License
CC BY-SA 4.0 International (source rights undetermined — not yet granted)
Attribution
MolGod Scientific — Stearic acid amide (CAS 124-26-5)
License & provenance record
Stearic acid amide (CAS 124-26-5) →
MolGod molecule record
Stearic acid amide →
Source data
PubChem CID 31292 ↗
Model information
STL generated by MolGod · MolGod STL Exporter build 48804cd20b0d · generated 2026-10-14
SHA-256 (STL)
c5f206dfb3a74856d348d2e8a797b9d6a95d5e68ffd924b52dfd53ff0f70556d
MD5 (STL)
5558729943873ab9fd2845c07f3a5dbf
Model identifier
MG-STL-124-26-5
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.

—