Description

This entry presents Chloroform (CHCl3; CAS 67-66-3; PubChem CID 6212 (https://pubchem.ncbi.nlm.nih.gov/compound/6212)) as a 3D-printable ball-and-stick model in which every atom carries its engraved element symbol (C, H, Cl), 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 5 atoms: 1 C, 1 H, 3 Cl 4 bonds, all single No rings (open-chain structure) Functional groups: three C-Cl bonds No hydrogen-bond donors or acceptors (computed) Every carbon atom is sp3-hybridised (tetrahedral) Use in teaching Counting task: students tally the engraved symbols (1 C, 1 H, 3 Cl; 5 atoms) and rebuild the formula CHCl3 from the model alone. Functional groups: find the three C-Cl bonds on the model and name each one. File and printing STL mesh of 77,668 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: 2.96 × 2.907 × 3.195 Å; at scale factor 10 (1 Å to 10 mm, file read in millimetres) the print measures about 29.6 × 29.1 × 31.9 mm. SHA-256: facc9a28552c5e5010dffc4ed4a3128c756c8d70e2ff388e223461b329c2a9b4. Validation InChIKey identical to the PubChem record (PubChem FTP SDF, file dated 2026-10-08): HEDRZPFGACZZDS-UHFFFAOYSA-N Molecular formula and hydrogen-bond donor/acceptor counts identical to PubChem 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/67-66-3 (https://molgod.org/molecule/67-66-3/?utm_source=nih3d&utm_medium=referral&utm_campaign=edu-3d-models) · Licence and provenance record: molgod.org/licenses/stl/67-66-3 (https://molgod.org/licenses/stl/67-66-3/) · Same file on Wikimedia Commons: File:Chloroform-3D-molecular-model-engraved-CAS-67-66-3.stl (https://commons.wikimedia.org/wiki/File:Chloroform-3D-molecular-model-engraved-CAS-67-66-3.stl) MolGod ID: MG_345-434-976-05 (https://molgod.org/id/MG_345-434-976-05) Wikidata: Q172275 (https://www.wikidata.org/wiki/Q172275) EC number: 200-663-8 ChemSpider ID: 5977 IUPAC name: chloroform InChIKey: HEDRZPFGACZZDS-UHFFFAOYSA-N SMILES: C(Cl)(Cl)Cl Molar mass 119.37 g/mol (exact mass 117.914383) Licence: CC BY-SA 4.0 (licence text (https://creativecommons.org/licenses/by-sa/4.0/)). Required attribution: "Chloroform 3D model by MolGod.org — https://molgod.org/molecule/67-66-3/ — CC BY-SA 4.0".