Pobierz obrazCAS 74-82-8 · CH4 · MolGod 3D molecular model
| Model identifier | MG-STL-74-82-8
|
|---|---|
| CAS Registry Number | 74-82-8 |
| Name source | cache cas-*.json field "title" (angielski) |
| Molecular formula | CH4 |
| PubChem CID | 297 |
| InChIKey | VNWKTOKETHGBQD-UHFFFAOYSA-N |
| Wikidata | Q37129 |
| MolGod molecule record | Methane (CAS 74-82-8) — molecule record |
| MolGod product page | Methane — safety data sheet |
| Source | PubChem (source record type not recorded for this substance) |
|---|---|
| Endpoint | Not recorded in the MolGod cache entry for this substance. |
| Dimensionality | 3d |
| Retrieved | 2026-09-28 18:16:31 |
| Atoms / bonds | 5 / 4 |
| Modification | None. Atomic coordinates and connectivity are used unchanged; no geometry was modelled, adjusted or inferred. |
Pobierz obraz
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.
Pobierz obraz
The element symbol is cut into the sphere, not printed on it. That single difference is what this variant is for.
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: 50,178 triangles versus 1,984.
Download engraved variant:
molgod-74-82-8-engraved.stl (2 MB)
SHA-256 b22e0153570f05d95c1a2fdd84d68ed8b6a0eaa58b6f460df863aa207c868af7
| Format | STL (binary). Coordinate convention: ångström (Å) — STL itself stores no unit metadata. Slicers read STL as millimetres by default, so set the scale deliberately before printing. |
|---|---|
| Download | molgod-74-82-8.stl (97 KB) |
| SHA-256 | 55925b176fa93349e20cd066671ee1b5569186d68d03a743024be2f13b829246 |
| MD5 | db5064fe0843f707b53ee81414117670 |
| Size | 99,284 bytes |
| Triangles | 1,984 |
| Mesh | 5 atom spheres + 4 bond cylinders, each a closed outward-oriented solid; the solids intersect by design. |
| Atomic radii | van der Waals radii, Bondi 1964 (doi:10.1021/j100785a001). Sphere scale and bond radius are presentation parameters, not chemical quantities. |
| Exporter | MolGod STL Exporter build a53b3c2cff9c |
| Validator | waliduj_stl.py PASS at export; external cross-check (trimesh/numpy-stl) NOT PERFORMED for this model |
| Generated | 2026-10-01T01:40:09Z |
| License | CC BY-SA 4.0 International |
|---|---|
| Creator | MolGod Scientific |
| Required attribution | "Methane (CAS 74-82-8) — 3D molecular model" by MolGod Scientific, licensed under CC BY-SA 4.0 International. Rendered as a triangulated mesh (van der Waals spheres and bond cylinders) from the PubChem-computed 3D conformer; atomic coordinates and connectivity unchanged. Source: https://molgod.org/licenses/stl/74-82-8/ |
| Wikimedia Commons tag | {{Cc-by-sa-4.0}} |
| Source representation | PubChem record; a PubChem-computed 3D conformer is not confirmed for this record, so MolGod does not claim it is a PubChem-computed conformer. |
| Source rights basis | NCBI Molecular Data Usage Policy. NCBI does not itself restrict use or redistribution of molecular data, but does not transfer rights that individual depositors may hold. |
| Rights assessment | compatible — MolGod's own determination that this computed conformer may serve as the geometric basis of a derived mesh. This is not a licence grant by the source. The measured basis is that the conformer is computed by PubChem rather than deposited by a third party. A formal legal assessment of downstream rights has not been carried out; that risk is accepted explicitly and recorded in the MolGod decision register (2026-09-25). |
| Assessment scope | This assessment covers only the computed 3D conformer used as geometric input. It does not extend to depositor data obtained from PubChem — names, spectra, physicochemical values or anything else. |
| Source URL | PubChem CID 297 |
| Source license terms | NCBI Policies and Disclaimers |
| Source licensing guidance | PubChem data downloads & licensing — PubChem states that an individual data source may provide its own licence terms and that these should be checked per source. This model uses a PubChem-computed conformer, not depositor-supplied data. |
| Attribution URL | https://molgod.org/molecule/74-82-8/ |
| License & provenance URL | https://molgod.org/licenses/stl/74-82-8/ |
| Scope | This license applies to the MolGod-created STL mesh, not automatically to third-party source material. |
| Licence terms & attribution | MolGod licence and attribution rules → |
Licence grant. MolGod Scientific, the creator and
copyright holder of the STL mesh MG-STL-74-82-8
(SHA-256 55925b176fa93349e20cd066671ee1b5569186d68d03a743024be2f13b829246),
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.