L-menthol - engraved ball-and-stick model (CAS 2216-51-5)

L-menthol (C10H20O; CAS 2216-51-5; PubChem CID 16666 ) as a 3D-printable ball-and-stick model in which every atom carries its engraved element symbol (C, H, O), so the model can be read without a colour key. Atomic coordinates come from the PubChem-computed 3D conformer (not an experimental crystal structure); coordinates and connectivity are unchanged.

Structure at a glance

- 31 atoms: 10 C, 20 H, 1 O; 31 bonds, all single

- One six-membered carbon ring; every carbon is sp3-hybridised (tetrahedral)

- One hydroxyl group (-OH): one hydrogen-bond donor and one acceptor (computed)

- Three stereocentres with CIP labels R, S, R — IUPAC name (1R,2S,5R)-5-methyl-2-propan-2-ylcyclohexan-1-ol

Use in teaching

- Counting task: students tally the engraved symbols and rebuild the formula C10H20O from the model alone.

- Stereochemistry: locate the three stereocentres on the printed model and confirm the R, S, R assignment with the CIP priority rules.

- Bonding: tetrahedral carbon geometry throughout the ring and the hydroxyl group as the single hydrogen-bonding site.

Printing

STL mesh of 329,522 triangles, a closed (watertight) single solid. Coordinates are in ångström and STL stores no unit, so scale the model deliberately in your slicer.

Source, licence and identifiers

Full record: molgod.org/molecule/2216-51-5 · Licence and provenance record: molgod.org/licenses/stl/2216-51-5 · Same file on Wikimedia Commons: File:L-menthol-3D-molecular-model-engraved-CAS-2216-51-5.stl

- MolGod ID: MG_954-696-860-97

- Wikidata: Q407418 · EC 218-690-9 · ChemSpider 15803

- InChIKey: NOOLISFMXDJSKH-KXUCPTDWSA-N

- SMILES: C[C@@H]1CC[C@H]([C@@H](C1)O)C(C)C

- Molar mass 156.26 g/mol (exact mass 156.151415257)

Licence: CC BY-SA 4.0 ( licence text ). Required attribution: "L-menthol 3D model by MolGod.org — https://molgod.org/molecule/2216-51-5/ — CC BY-SA 4.0". MolGod.org publishes its engraved molecular models free of charge for teachers and students.