This entry presents Benzyl Chloride (C7H7Cl; CAS 100-44-7; PubChem CID 7503) 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.

Biological relevance: Benzyl chloride is recorded as a carcinogen (source: Wikidata Q412260, retrieved 2026-10-10).

Structure at a glance

• 15 atoms: 7 C, 7 H, 1 Cl

• 15 bonds: 9 single, 6 aromatic

• One aromatic 6-membered ring

• Functional group: one C-Cl bond

• No hydrogen-bond donors or acceptors (computed)

• Fraction of sp3-hybridised (tetrahedral) carbon atoms: 0.14 (computed)

Use in teaching

• Counting task: students tally the engraved symbols (7 C, 7 H, 1 Cl; 15 atoms) and rebuild the formula C7H7Cl from the model alone.

• Aromaticity: identify the aromatic ring and the 6 bonds recorded as aromatic.

• Functional groups: find the C-Cl bond on the model and name it.

File and printing

STL mesh of 198,906 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: 5.402 × 5.928 × 4.536 Å; at scale factor 10 (1 Å to 10 mm, file read in millimetres) the print measures about 54.0 × 59.3 × 45.4 mm. SHA-256: 734810b99f57fcfa2c74fc313effda84594be25323b3d983dfb0688024232c25.

Validation

• InChIKey identical to the PubChem record (PubChem FTP SDF, file dated 2026-10-08): KCXMKQUNVWSEMD-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/100-44-7 · Licence and provenance record: molgod.org/licenses/stl/100-44-7 · Same file on Wikimedia Commons: File:Benzyl Chloride-3D-molecular-model-engraved-CAS-100-44-7.stl

• MolGod ID: MG_994-015-924-46

• Wikidata: Q412260

• EC number: 202-853-6

• ChemSpider ID: 13840690

• IUPAC name: chloromethylbenzene

• InChIKey: KCXMKQUNVWSEMD-UHFFFAOYSA-N

• SMILES: C1=CC=C(C=C1)CCl

• Molar mass 126.58 g/mol (exact mass 126.0236279)

Licence: CC BY-SA 4.0 (licence text). Required attribution: "Benzyl Chloride 3D model by MolGod.org — https://molgod.org/molecule/100-44-7/ — CC BY-SA 4.0".