1,2-Dimethoxyethane, C₄H₁₀O₂, 110-71-4, 3D 1,2-Dimethoxyethane to print

1,2-Dimethoxyethane (C4H10O2, CAS 110-71-4) — a free educational 3D molecular model for teachers and students, by MolGod.org. Symbols are engraved into every atom, so students read atoms by symbol, not by colour.

Colour keys break down in 3D printing, because an STL holds geometry alone and most classroom printers use one filament at a time. We build the label into the model: each sphere bears its recessed element symbol, readable by eye and by fingertip. The aim of this scientific education project is to help students identify the atoms of a molecule faster and so grasp its chemistry and 3D geometry sooner. Preparation time drops for the teacher too: there is nothing to model, colour or annotate before sending the file to the printer. Teachers and researchers can find the project rationale and validation plan at How the engraved atom letters are designed.

No ring closes anywhere in 1,2-Dimethoxyethane, which makes it a good open-chain example: 16 atoms, 15 bonds, all of them single. Students work from the model back to the formula C4H10O2: the symbol count is 4 C + 10 H + 2 O, or 16 atoms all told. This molecule gives students these functional groups to identify: two ether linkages (C-O-C). For a lesson on isomerism, print it together with 1,3-Butanediol (CAS 107-88-0) and 1-Methoxy-2-propanol (CAS 107-98-2): the same atoms, arranged differently. Natural follow-up models: Diglyme (CAS 111-96-6) and 2-Methoxyethanol (CAS 109-86-4), close enough in structure for a spot-the-difference task.

MolGod.org publishes its molecular models free of charge for teachers and students. Teachers: give each table a model and have students write the formula from the engraved atoms.

Print it, hand it round and build a lesson around it. Sharing it somewhere? The licence (CC BY-SA 4.0) needs four things: "MolGod.org" credited as the creator, links to the original and to the licence, a mention of any changes, and adaptations released under the same licence. The attribution text below covers the first two. There is no registration, no payment and no obligation to rate it. Teachers and students, we read every comment. Tell us in a review how the model worked for you and what we could do better for education; for longer feedback write to 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: 1,2-Dimethoxyethane, CAS 110-71-4: structure, properties and 3D viewer
Licence & provenance: Licence record for this 1,2-Dimethoxyethane model
Same file on Wikimedia Commons: https://commons.wikimedia.org/wiki/File:1,2-Dimethoxyethane-3D-molecular-model-engraved-CAS-110-71-4.stl
Plain-text record for AI assistants: 1,2-Dimethoxyethane data sheet in plain text for LLMs

A ball-and-stick model of 1,2-Dimethoxyethane 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: 259,916 triangles, closed (watertight) single solid. Coordinates in ångström (STL stores no unit) — scale the model deliberately in your slicer.

Names in other languages: Ethylenglycoldimethylether (de); Diméthoxyéthane (fr); 1,2-dimetossietano (it); 1,2-dimethoxyethaan (nl); 1,2-dimetoksyetan (pl); 乙二醇二甲醚 (zh).

Chemical identity

• CAS Registry Number: 110-71-4

• Molecular formula: C4H10O2

• Molar mass: 90.12 g/mol (exact mass 90.068079557)

• IUPAC name: 1,2-dimethoxyethane

• MolGod ID: MG_125-700-934-25 (Permanent MolGod record MG_125-700-934-25)

• PubChem CID: 8071 (https://pubchem.ncbi.nlm.nih.gov/compound/8071)

• Wikidata: Q416271 (https://www.wikidata.org/wiki/Q416271)

• EC number: 203-794-9

• ChemSpider ID: 13836589

• InChIKey: XTHFKEDIFFGKHM-UHFFFAOYSA-N

• SMILES: COCCOC

Required attribution (CC BY-SA 4.0): "1,2-Dimethoxyethane 3D model by MolGod.org — https://molgod.org/molecule/110-71-4/ — CC BY-SA 4.0"
Licence text: https://creativecommons.org/licenses/by-sa/4.0/