L-menthol 3D Molecular Model — CAS 2216-51-5
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Free educational L-menthol model (C10H20O, CAS 2216-51-5) with an engraved element symbol on every atom.
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L-menthol (C10H20O, CAS 2216-51-5) — a free educational 3D molecular model for teachers and students, by MolGod.org. Each atom is labelled with its own engraved element symbol: no colour chart needed.
Start with the ring system: L-menthol has one 6-membered ring; in total the model carries 31 bonds (all of them single). A five-minute warm-up: read the symbol on every sphere and write down the totals (10 C + 20 H + 1 O = 31 atoms). Use it when you teach chirality, enantiomers and CIP (R/S) rules, as well as alcohols and hydrogen bonding. Spot-the-group challenge: can students find the hydroxyl group (-OH)? Stereochemistry in your hand: L-menthol carries three stereocentres (R, S, R), so students can check each label against the CIP rules.
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.
Full record and more free models: https://molgod.org/molecule/2216-51-5/?utm_source=printables&utm_medium=referral&utm_campaign=edu-3d-models
Licence & provenance: https://molgod.org/licenses/stl/2216-51-5/
Same file on Wikimedia Commons: https://commons.wikimedia.org/wiki/File:L-menthol-3D-molecular-model-engraved-CAS-2216-51-5.stl
A ball-and-stick model of L-menthol 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: 329,522 triangles, closed (watertight) single solid. Coordinates in ångström (STL stores no unit) — scale the model deliberately in your slicer.
Names in other languages: Menthol (de); menthol (fr); mentolo (it); mentol (pl); 薄荷醇 (zh).
Chemical identity: CAS Registry Number: 2216-51-5 | Molecular formula: C10H20O | Molar mass: 156.26 g/mol (exact mass 156.151415257) | IUPAC name: (1R,2S,5R)-5-methyl-2-propan-2-ylcyclohexan-1-ol | MolGod ID: MG_954-696-860-97 (https://molgod.org/id/MG_954-696-860-97) | PubChem CID: 16666 (https://pubchem.ncbi.nlm.nih.gov/compound/16666) | Wikidata: Q407418 (https://www.wikidata.org/wiki/Q407418) | EC number: 218-690-9 | ChemSpider ID: 15803 | InChIKey: NOOLISFMXDJSKH-KXUCPTDWSA-N | SMILES: C[C@@H]1CC[C@H]([C@@H](C1)O)C(C)C
Required attribution (CC BY-SA 4.0): "L-menthol 3D model by MolGod.org — https://molgod.org/molecule/2216-51-5/ — CC BY-SA 4.0"
Licence text: https://creativecommons.org/licenses/by-sa/4.0/