Epichlorohydrin 3D Molecular Model — CAS 106-89-8
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Free educational Epichlorohydrin model (C3H5ClO, CAS 106-89-8) with an engraved element symbol on every atom.
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Epichlorohydrin (C3H5ClO, CAS 106-89-8) — 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.
Which rings can the class see in Epichlorohydrin? The answer is one 3-membered ring, joined up by 10 bonds altogether (all of them single). Counting task: 3 C + 5 H + 1 Cl + 1 O gives 10 engraved spheres; can the class rebuild the formula C3H5ClO from the model alone? On the printed model, students can point to the epoxide ring (three-membered C-O-C ring) and the C-Cl bond. Find the one stereocentre of Epichlorohydrin first; because this record gives no R or S, the follow-up question is what the mirror image would look like. Students meeting chirality, enantiomers and CIP (R/S) rules, ring strain in three-membered rings, as well as organohalogen compounds and carbon-halogen bonds for the first time can hold an example in their hands.
MolGod.org offers this engraved model free to anyone teaching or learning chemistry. Teachers: let students set the model beside a skeletal formula and list what the drawing omits.
Full record and more free models: https://molgod.org/molecule/106-89-8/?utm_source=printables&utm_medium=referral&utm_campaign=edu-3d-models
Licence & provenance: https://molgod.org/licenses/stl/106-89-8/
Same file on Wikimedia Commons: https://commons.wikimedia.org/wiki/File:Epichlorohydrin-3D-molecular-model-engraved-CAS-106-89-8.stl
A ball-and-stick model of Epichlorohydrin 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: 121,712 triangles, closed (watertight) single solid. Coordinates in ångström (STL stores no unit) — scale the model deliberately in your slicer.
Names in other languages: Epichlorhydrin (de); épichlorohydrine (fr); epicloridrina (it); epichloorhydrine (nl); epichlorohydryna (pl); 环氧氯丙烷 (zh).
Chemical identity
CAS Registry Number: 106-89-8
Molecular formula: C3H5ClO
Molar mass: 92.52 g/mol (exact mass 92.0028925)
IUPAC name: 2-(chloromethyl)oxirane
MolGod ID: MG_725-593-588-20 (https://molgod.org/id/MG_725-593-588-20)
PubChem CID: 7835 (https://pubchem.ncbi.nlm.nih.gov/compound/7835)
Wikidata: Q423083 (https://www.wikidata.org/wiki/Q423083)
EC number: 203-439-8
ChemSpider ID: 13837112
InChIKey: BRLQWZUYTZBJKN-UHFFFAOYSA-N
SMILES: C1C(O1)CCl
Required attribution (CC BY-SA 4.0): "Epichlorohydrin 3D model by MolGod.org — https://molgod.org/molecule/106-89-8/ — CC BY-SA 4.0"
Licence text: https://creativecommons.org/licenses/by-sa/4.0/