Cyclohexanone C6H10O, CAS 108-94-1, 3D Model

Cyclohexanone (C6H10O, CAS 108-94-1) — a free educational 3D molecular model for teachers and students, by MolGod.org. Every atom carries its engraved element symbol, so no colour key is needed.

Most printable molecule files rely on colour coding, yet the STL format carries no colour and a single-filament print loses it entirely. MolGod models carry the chemical symbol on every ball as an engraving, which survives slicing, printing and handling. Our goal as an education project: free files for teachers, designed so that students recognise atoms at a glance and spend their attention on bonds and structure. For teachers it also saves preparation: the file is already modelled and labelled, so the only steps left are scaling and slicing. Read why we engrave the atoms, and which studies inspired the project: How the engraved atom letters are designed.

Start with the ring system: Cyclohexanone has one 6-membered ring; in total the model carries 17 bonds (16 single and 1 double). Students work from the model back to the formula C6H10O: the symbol count is 6 C + 10 H + 1 O, or 17 atoms all told. Spot-the-group challenge: can students find the ketone group (C=O)? Students meeting the carbonyl group (C=O) for the first time can hold an example in their hands. Same formula, different structure: put it next to 3-Hexyn-1-ol (CAS 1002-28-4) from the same collection and ask students what changed.

MolGod.org builds and releases these models at no cost for chemistry teaching. Teachers: hand out printed copies and ask students to rebuild the structural formula from the model.

Download it, print it and use it in your teaching. CC BY-SA 4.0 sets four simple conditions for anything you publish with it: credit "MolGod.org" as the model's author, link the original and the licence, say what you changed, and share derivatives alike. Copy the attribution line below to get it right. There is no registration, no payment and no obligation to rate it. Every review helps us refine the models for students. Tell us what you think in the comments, or reach us at Write to the MolGod team. Questions about the chemistry behind this molecule are welcome too: start a discussion in the comments and we will happily join in. Need a different molecule? Send us its CAS number and we will gladly prepare an engraved 3D model of it.

Full record and more free models: Cyclohexanone, CAS 108-94-1: structure, properties and 3D viewer
Licence & provenance: Licence record for this Cyclohexanone model
Same file on Wikimedia Commons: https://commons.wikimedia.org/wiki/File:Cyclohexanone-3D-molecular-model-engraved-CAS-108-94-1.stl

A ball-and-stick model of Cyclohexanone 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: 191,118 triangles, closed (watertight) single solid. Coordinates in ångström (STL stores no unit) — scale the model deliberately in your slicer.

Names in other languages: Cyclohexanon (de); cicloesanone (it); cyclohexanon (nl); cykloheksanon (pl); 环己酮 (zh).

Chemical identity

• CAS Registry Number: 108-94-1

• Molecular formula: C6H10O

• Molar mass: 98.14 g/mol (exact mass 98.073164938)

• IUPAC name: cyclohexanone

• MolGod ID: MG_742-664-243-78 (Permanent MolGod record MG_742-664-243-78)

• PubChem CID: 7967 (https://pubchem.ncbi.nlm.nih.gov/compound/7967)

• Wikidata: Q409178 (https://www.wikidata.org/wiki/Q409178)

• EC number: 203-631-1

• ChemSpider ID: 7679

• InChIKey: JHIVVAPYMSGYDF-UHFFFAOYSA-N

• SMILES: C1CCC(=O)CC1

Required attribution (CC BY-SA 4.0): "Cyclohexanone 3D model by MolGod.org — https://molgod.org/molecule/108-94-1/ — CC BY-SA 4.0"
Licence text: https://creativecommons.org/licenses/by-sa/4.0/