Allyl chloride 3D Molecular Model — CAS 107-05-1

Allyl chloride (C3H5Cl, CAS 107-05-1) — a free educational 3D molecular model for teachers and students, by MolGod.org. Each atom is labelled with its own engraved element symbol: no colour chart needed.

Most printable molecule files rely on colour coding, yet the STL format carries no colour and a single-filament print loses it entirely. Each atom of a MolGod model is engraved with its element symbol, turning a plain print into a self-explaining teaching object. Our intended outcome is simple: students who hold the model should know each atom immediately and use the lesson to understand the molecule's structure. The labelling that would otherwise be done with stickers or paint after printing is already part of the file. More about the hypothesis we are testing with these models: How the engraved atom letters are designed.

Lay Allyl chloride on the desk and search for a ring: there isn't one. Its 9 atoms hang together through 8 bonds (7 single and 1 double). Students work from the model back to the formula C3H5Cl: the symbol count is 3 C + 5 H + 1 Cl, or 9 atoms all told. Spot-the-group challenge: can students find the carbon-carbon double bond (C=C) and the C-Cl bond? Students meeting organohalogen compounds and carbon-halogen bonds for the first time can hold an example in their hands. Its closest structural relative in the MolGod.org collection is Dichloromethane (CAS 75-09-2); printing them side by side makes a quick compare-and-contrast exercise.

MolGod.org offers this engraved model free to anyone teaching or learning chemistry. Teachers: pass the model round at the start of the lesson, before showing any diagram.

Free to print and free to bring into any classroom. If you share a photo, a lesson or an adapted version, the licence (CC BY-SA 4.0) asks for credit to "MolGod.org" as the model's author, a link to the original and to the licence text, a note of what you changed, and the same licence for adaptations; the attribution line below is ready to copy. There is no registration, no payment and no obligation to rate it. Did it help your lesson? Write us a short review in the comments and tell us what would make the next molecule even better for students (or contact us at Write to the MolGod team). Join the conversation: comments, questions and classroom stories are all welcome, and you can always contact us for anything more. MolGod builds 3D models from a CAS number alone: send one and receive a printable, engraved model of that molecule.

Full record and more free models: Allyl chloride, CAS 107-05-1: structure, properties and 3D viewer
Licence & provenance: Licence record for this Allyl chloride model
Same file on Wikimedia Commons: https://commons.wikimedia.org/wiki/File:Allyl_chloride-3D-molecular-model-engraved-CAS-107-05-1.stl
Plain-text record for AI assistants: Allyl chloride data sheet in plain text for LLMs

A ball-and-stick model of Allyl chloride 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: 146,804 triangles, closed (watertight) single solid. Coordinates in ångström (STL stores no unit) — scale the model deliberately in your slicer.

Names in other languages: Allylchlorid (de); chlorure d'allyle (fr); Cloruro di allile (it); allylchloride (nl); chlorek allilu (pl); 烯丙基氯 (zh).

Chemical identity

• CAS Registry Number: 107-05-1

• Molecular formula: C3H5Cl

• Molar mass: 76.52 g/mol (exact mass 76.0079779)

• IUPAC name: 3-chloroprop-1-ene

• MolGod ID: MG_406-023-385-71 (Permanent MolGod record MG_406-023-385-71)

• PubChem CID: 7850 (https://pubchem.ncbi.nlm.nih.gov/compound/7850)

• Wikidata: Q420473 (https://www.wikidata.org/wiki/Q420473)

• EC number: 203-457-6

• ChemSpider ID: 13836674

• InChIKey: OSDWBNJEKMUWAV-UHFFFAOYSA-N

• SMILES: C=CCCl

Required attribution (CC BY-SA 4.0): "Allyl chloride 3D model by MolGod.org — https://molgod.org/molecule/107-05-1/ — CC BY-SA 4.0"
Licence text: https://creativecommons.org/licenses/by-sa/4.0/

License note: the CC BY-SA 4.0 license applies to the 3D model (STL) and its render. The framed presentation image (gold frame) is © MolGod.org, All rights reserved — see molgod.org/copyright.