benzene — License & Provenance

CAS 71-43-2 · C6H6 · MolGod 3D molecular model

benzene (CAS 71-43-2) — full MolGod record: all data sections for this substance — properties, safety, regulatory status, spectra, literature.

Identity

Geometry provenance

Preview

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Rendered from this exact STL file, not from a second source. Single material — the STL format carries no colour channel. Colours in the preview are assigned by the renderer from the element palette and are not part of the downloadable geometry.

Engraved variant

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The element symbol is cut into the sphere, not printed on it. That single difference is what this variant is for.

• Print it and you can still read it. The letters are part of the solid, so they survive 3D printing. Pick up the printed model and every atom tells you what it is — no legend, no colour key, no separate sheet. A painted label would vanish the moment the file leaves the screen.
• It cannot lose its labelling. The symbol is geometry, not a texture or a material. Open the file in any viewer, any slicer, any CAD package — on any machine, in any colour scheme — and the letters are still there, because there is nothing to strip away.
• Bond order is visible in the shape itself. Single, double and triple bonds are built as one, two and three cylinders, following the PubChem Kekulé structure, so a double bond looks like a double bond in your hand. An aromatic ring therefore appears as one Kekulé structure (alternating single and double bonds), although in the real molecule its ring bonds are delocalised, intermediate between single and double.
• Teaching and display models that stay correct. Nothing about the identification depends on the software, the render settings or the filament colour.

Why the preview looks the way it does. A carved letter has no colour of its own — on a pale atom it would disappear into the highlight. The preview is rendered from the mesh itself with ray-traced cavity shading, so recesses darken because they are recessed, not because we painted them. What you see is the geometry you will receive. The element colours follow the same palette as the interactive viewer on this site, so the model and the viewer never disagree about what an atom is.

Element symbols are recessed into the atom spheres. Mesh: 204,444 triangles versus 5,280.

Download engraved variant: Benzene-3D-molecular-model-engraved-CAS-71-43-2.stl (10 MB)
SHA-256 f1278b46a214583b6a711617b347062338b65e97e15479f34a6a544da1a4c2b9
Validation: mesh validity check PASS (re-checked 2026-11-06, after the file was first published); external cross-check NOT PERFORMED for this model
Recommended print scale: FDM (0.4 mm nozzle, 0.2 mm layer) at least 7.2 mm per Å (model about 36 mm across); resin printer (50 µm) at least 1.7 mm per Å (about 9 mm). Below this scale the engraved symbols become too fine to print. The printer limits are typical values assumed by MolGod, not a test of your printer.

Ready to print

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The engraved model on a display base, in one file. The molecule is the engraved variant above, unchanged: only scaled, rotated and positioned as a whole.

• A base that carries the data. Name and CAS number on the front, identifiers, a 1 Å scale bar and hazard pictograms on the top, and a QR code to this record underneath. All of it is cut into the solid.
• Fixed supports, one solid. Heavier atoms that would start printing in mid-air get their own support, placed away from the engraved symbols. Small hydrogen overhangs are left to your slicer’s supports.
• Already at print size. Unlike the files above, which are in ångströms, this file is in millimetres: base Ø 100 mm. Import it at 100 % — do not rescale.
• Checked geometry. Watertight single solid; the molecule surface is compared with the engraved source file.

Download ready-to-print variant: molgod-71-43-2-ready-to-print.stl (14 MB, 287,268 triangles, millimetres) · STL · base Ø 100 mm · single integrated solid
SHA-256 ecbc73ef7690cfd221f4b877a840bf582a1dd9ac4df5e2b36cb0ddd0f89d6169
Validation: geometry checks on this file: 12 passed (watertight single solid; independent cross-check with trimesh and numpy-stl passed; molecule surface vs engraved source < 0.001 mm; author mark; base dimensions; engraving depth; QR decoded from geometry); slicing and test print not performed
Status: digital prototype: geometry validated, slicing and test print not yet verified
Licence: CC BY-SA 4.0 International. Credit: “benzene (CAS 71-43-2) — 3D model, ready to print” by MolGod Scientific, with a link to this page.
Licence grant: MolGod Scientific, copyright holder of this ready-to-print STL of MolGod entity MG_386-938-392-24, variant ready-to-print (STL, millimetres, SHA-256 ecbc73ef7690cfd221f4b877a840bf582a1dd9ac4df5e2b36cb0ddd0f89d6169), licenses this file under CC BY-SA 4.0 International. The licence grant further down this page covers the normal variant only.
Public download check: downloaded bytes match the SHA-256 above (2026-10-14T09:27:49Z)

Artefact

License

Licence grant. MolGod Scientific, the creator and copyright holder of the STL mesh of MolGod entity MG_386-938-392-24, variant normal (SHA-256 0668f0cf85cfa46701ea81bf61e18b1e1296de29cfe872e0281bd50d780e2cdd), hereby releases it under the CC BY-SA 4.0 International licence. The release covers the MolGod-created mesh only, not third-party source material (see Scope above).

The license above is the legal instrument and is granted by its official Creative Commons deed. This page is the MolGod provenance record for the artefact; it documents the source and the pipeline, and does not impose any condition beyond those of the license itself.