Pentane 3D Molecular Model — CAS 109-66-0

Pentane (C5H12, CAS 109-66-0) — a free educational 3D molecular model for teachers and students, by MolGod.org. Symbols are engraved into every atom, so students read atoms by symbol, not by colour.

There is not a single ring in Pentane; 17 atoms are linked by 16 bonds in an open chain (all of them single). Counting task: 5 C + 12 H gives 17 engraved spheres; can the class rebuild the formula C5H12 from the model alone? A good fit for lessons on saturated carbon chains and tetrahedral (sp3) carbon. Same formula, different structure: put it next to Isopentane (CAS 78-78-4) from the same collection and ask students what changed. Want a comparison? The most similar structures in the MolGod.org collection are Hexane (CAS 110-54-3) and Tetracosane (CAS 646-31-1).

This model is part of the free MolGod.org collection of engraved molecules for education. Teachers: pair it with the MolGod.org record to connect the 3D shape with identifiers and data.

Full record and more free models: https://molgod.org/molecule/109-66-0/?utm_source=myminifactory&utm_medium=referral&utm_campaign=edu-3d-models Licence & provenance: https://molgod.org/licenses/stl/109-66-0/ Same file on Wikimedia Commons: https://commons.wikimedia.org/wiki/File:Pentane-3D-molecular-model-engraved-CAS-109-66-0.stl

A ball-and-stick model of Pentane with each element symbol recessed into its atom sphere, generated by MolGod.org from a PubChem-computed 3D conformer (not an experimental crystal structure); atomic coordinates and connectivity are unchanged. STL mesh: 178,486 triangles, closed (watertight) single solid. Coordinates in ångström (STL stores no unit) — scale the model deliberately in your slicer.

Names in other languages: Pentan (de); n-pentane (fr); pentano (it); n-pentaan (nl); pentan (pl); 戊烷 (zh).

Chemical identity - CAS Registry Number: 109-66-0 - Molecular formula: C5H12 - Molar mass: 72.15 g/mol (exact mass 72.093900383) - IUPAC name: pentane - MolGod ID: MG_398-578-319-49 (https://molgod.org/id/MG_398-578-319-49) - PubChem CID: 8003 (https://pubchem.ncbi.nlm.nih.gov/compound/8003) - Wikidata: Q150429 (https://www.wikidata.org/wiki/Q150429) - EC number: 203-692-4 - ChemSpider ID: 7712 - InChIKey: OFBQJSOFQDEBGM-UHFFFAOYSA-N - SMILES: CCCCC

Required attribution (CC BY-SA 4.0): "Pentane 3D model by MolGod.org — https://molgod.org/molecule/109-66-0/ — CC BY-SA 4.0" Licence text: https://creativecommons.org/licenses/by-sa/4.0/