Description

This entry presents Glycidol (C3H6O2; CAS 556-52-5; PubChem CID 11164 (https://pubchem.ncbi.nlm.nih.gov/compound/11164)) 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 11 atoms: 3 C, 6 H, 2 O 11 bonds, all single One 3-membered ring Functional groups: one hydroxyl group (-OH) and one epoxide ring (three-membered C-O-C ring) One stereocentre; configuration not defined in the source record (no R/S label) — IUPAC name oxiran-2-ylmethanol One hydrogen-bond donor and two acceptors (computed) Every carbon atom is sp3-hybridised (tetrahedral) Use in teaching Counting task: students tally the engraved symbols (3 C, 6 H, 2 O; 11 atoms) and rebuild the formula C3H6O2 from the model alone. Stereochemistry: locate the stereocentre; the source record defines no configuration, so the printed conformer should not be read as a specific stereoisomer. Functional groups: find the hydroxyl group (-OH) and the epoxide ring (three-membered C-O-C ring) on the model and name each one. File and printing STL mesh of 131,496 triangles, a closed (watertight) single solid. Coordinates are in ångström and STL stores no unit, so scale the model deliberately in your slicer. Measured bounding box: 4.53 × 3.954 × 3.453 Å; at scale factor 10 (1 Å to 10 mm, file read in millimetres) the print measures about 45.3 × 39.5 × 34.5 mm. SHA-256: 4e744e7d6c48834951209c7c88f58482a27c2b7a9d2da7d1ac36c2f472bea5c8. Validation InChIKey identical to the PubChem record (PubChem FTP SDF, file dated 2026-10-08): CTKINSOISVBQLD-UHFFFAOYSA-N Molecular formula and hydrogen-bond donor/acceptor counts identical to PubChem Stereocentres in PubChem: 0 defined, 1 undefined; both counts match this record Mesh: triangle count in the header equals the actual count; 0 edges not shared by exactly two triangles; 1 connected solid; SHA-256 equal to the published file Source, licence and identifiers Full record: molgod.org/molecule/556-52-5 (https://molgod.org/molecule/556-52-5/?utm_source=nih3d&utm_medium=referral&utm_campaign=edu-3d-models) · Licence and provenance record: molgod.org/licenses/stl/556-52-5 (https://molgod.org/licenses/stl/556-52-5/) · Same file on Wikimedia Commons: File:Glycidol-3D-molecular-model-engraved-CAS-556-52-5.stl (https://commons.wikimedia.org/wiki/File:Glycidol-3D-molecular-model-engraved-CAS-556-52-5.stl) MolGod ID: MG_785-546-757-47 (https://molgod.org/id/MG_785-546-757-47) Wikidata: Q418265 (https://www.wikidata.org/wiki/Q418265) EC number: 209-128-3 ChemSpider ID: 10691 InChIKey: CTKINSOISVBQLD-UHFFFAOYSA-N SMILES: C1C(O1)CO Molar mass 74.08 g/mol (exact mass 74.036779430) Licence: CC BY-SA 4.0 (licence text (https://creativecommons.org/licenses/by-sa/4.0/)). Required attribution: "Glycidol 3D model by MolGod.org — https://molgod.org/molecule/556-52-5/ — CC BY-SA 4.0".