Argon

CAS 7440-37-1  ·  Ar  ·  MW 39.9 g/mol

Full record: Argon — Safety Data Sheet →

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3D model Argon, CAS 7440-37-1, molecular formula Ar, molar mass 39.9 g/mol
About Argon

Argon is a chemical compound registered under number CAS 7440-37-1, with the molecular formula Ar, and a molar mass of 39.9 g/mol.

The molecule contains 1 atoms connected by 0 chemical bonds. 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 = 0 Ų, 0 donors and 0 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 interactive 3D model and the viewer images are protected by copyright (© MolGod.org) — terms of use: molgod.org/copyright/.

Physicochemical properties
Molecular formulaAr
Molar mass39.9 g/mol
IUPAC—
SMILES[Ar]
InChIKeyXKRFYHLGVUSROY-UHFFFAOYSA-N
logP (XLogP3)—
PSA0 Ų
HBD / HBA0 / 0
PubChem CIDCID 23968 ↗
GHS safety

Signal word: Warning

GHS04
GHS04

H280 — Contains gas under pressure; may explode if heated

Scientific literature

Related literature

7 articles · 7 open access · Sources: PubMed, OpenAlex, Semantic Scholar

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

📈 Publication timeline (number of articles: 7)

2016: number of articles 120162019: number of articles 12023: number of articles 12024: number of articles 120242025: number of articles 22026: 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
ARGON · 7440-37-1 · Argon-40 · Argon, Elemental · 67XQY1V3KH · Argon 40 · AR · KHLADON R 740 · INS NO.938 · E-938 · INS-938 · R 740 · RefChem:113993 · DTXCID0031055 · 231-147-0
Data sources
📜 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 (no conformer embedding or force-field optimisation was needed: the substance consists of single-atom ions only, whose arrangement is a presentation convention). 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. 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
  3. 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/23968
  4. 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)
Model
argon · 7440-37-1
InChIKey
XKRFYHLGVUSROY-UHFFFAOYSA-N
License & provenance record
argon (CAS 7440-37-1) →
MolGod molecule record
argon →
Source data
PubChem CID 23968 ↗
Model information
not published yet

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

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