Perfluorooctanesulfonic acid — CAS 1763-23-1

Perfluorooctanesulfonic acid (C8HF17O3S, CAS 1763-23-1) — a free educational 3D molecular model for teachers and students, by MolGod.org. Every atom carries its engraved element symbol (C, H, O, N...), so no colour key is needed.

There is not a single ring in Perfluorooctanesulfonic acid; 30 atoms are linked by 29 bonds in an open chain (27 single and 2 double). Quick starter: ask students to count the engraved symbols (8 C + 1 H + 17 F + 3 O + 1 S) and check that they add up to 30 atoms and the formula C8HF17O3S. On the printed model, students can point to the sulfonic acid group (-SO3H) and the 17 C-F bonds. A good fit for lessons on organohalogen compounds and carbon-halogen bonds. For intermolecular forces: the molecule has 1 hydrogen-bond donor and 2 acceptors (computed).

Free for education: MolGod.org publishes engraved molecular models for teachers, students and schools. Teachers: use it as a hands-on starter before drawing the structural formula on the board.

Full record and more free models: https://molgod.org/molecule/1763-23-1/?utm_source=myminifactory&utm_medium=referral&utm_campaign=edu-3d-models Licence & provenance: https://molgod.org/licenses/stl/1763-23-1/ Same file on Wikimedia Commons: https://commons.wikimedia.org/wiki/File:Perfluorooctanesulfonic_acid-3D-molecular-model-engraved-CAS-1763-23-1.stl

A ball-and-stick model of Perfluorooctanesulfonic acid with each element symbol recessed into its atom sphere, generated by MolGod.org from a PubChem-computed 3D conformer (not an experimental crystal structure); atomic coordinates and connectivity are unchanged. STL mesh: 396,032 triangles, closed (watertight) single solid. Coordinates in ångström (STL stores no unit) — scale the model deliberately in your slicer.

Names in other languages: Perfluoroctansulfonsäure (de); acide perfluorooctanesulfonique (fr); acido perfluoroottansolfonico (it); perfluoroctaansulfonzuur (nl); 全氟辛烷磺酸 (zh).

Chemical identity - CAS Registry Number: 1763-23-1 - Molecular formula: C8HF17O3S - Molar mass: 500.13 g/mol (exact mass 499.9374938) - IUPAC name: 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluorooctane-1-sulfonic acid - MolGod ID: MG_886-906-455-45 (https://molgod.org/id/MG_886-906-455-45) - PubChem CID: 74483 (https://pubchem.ncbi.nlm.nih.gov/compound/74483) - Wikidata: Q902094 (https://www.wikidata.org/wiki/Q902094) - EC number: 217-179-8 - ChemSpider ID: 67068 - InChIKey: YFSUTJLHUFNCNZ-UHFFFAOYSA-N - SMILES: C(C(C(C(C(F)(F)S(=O)(=O)O)(F)F)(F)F)(F)F)(C(C(C(F)(F)F)(F)F)(F)F)(F)F

Required attribution (CC BY-SA 4.0): "Perfluorooctanesulfonic acid 3D model by MolGod.org — https://molgod.org/molecule/1763-23-1/ — CC BY-SA 4.0" Licence text: https://creativecommons.org/licenses/by-sa/4.0/