Tetramethoxypropane 3D Molecular Model — CAS 102-52-3

Tetramethoxypropane (C7H16O4, CAS 102-52-3) — a free educational 3D molecular model for teachers and students, by MolGod.org. No legend required: the element symbol is engraved on each atom.

Most printable molecule files rely on colour coding, yet the STL format carries no colour and a single-filament print loses it entirely. MolGod engraves the element symbol directly into every atom sphere, so the identity of each atom is part of the geometry itself. 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. Instead of building a model from scratch, a teacher can go straight from the molecule's name to a file in the slicer. Background, references and the planned classroom study: https://molgod.org/engraved-molecular-models/.

Ask the class whether Tetramethoxypropane contains a ring. It does not: 27 atoms and 26 bonds (all of them single) make up an open structure. Give each pair of students the model and a blank sheet: recording every engraved symbol should lead them to 7 C + 16 H + 4 O, which is 27 atoms. Functional groups to find on the model: four ether linkages (C-O-C). Place it beside 1,1,3-Trimethoxypropane (CAS 14315-97-0) and Trimethyl orthoformate (CAS 149-73-5) and ask students which features are shared and which are not. On paper the molecule offers 0 donors and 4 acceptors for hydrogen bonding (computed); ask students which atoms they expect to take part.

MolGod.org shares these models for free to make chemistry tangible in the classroom. Teachers: use it as a hands-on starter before drawing the structural formula on the board.

This printable molecule is free to use in lessons, clubs and workshops. 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. Help us make better models for students! A comment with your honest review, what worked, what was hard to read, what you would change, is the best gift you can give us. More at https://molgod.org/contact/. Feel free to discuss the model here, compare notes with other educators, or contact us; every conversation helps us build better teaching models. Every request counts: tell us which molecule you need and we will make its 3D model specially for your students.

Full record and more free models: https://molgod.org/molecule/102-52-3/?utm_source=printables&utm_medium=referral&utm_campaign=edu-3d-models
Licence & provenance: https://molgod.org/licenses/stl/102-52-3/
Same file on Wikimedia Commons: https://commons.wikimedia.org/wiki/File:Tetramethoxypropane-3D-molecular-model-engraved-CAS-102-52-3.stl

A ball-and-stick model of Tetramethoxypropane 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: 301,388 triangles, closed (watertight) single solid. Coordinates in ångström (STL stores no unit) — scale the model deliberately in your slicer.

Names in other languages: 1,1,3,3-四甲氧基丙烷 (zh).

Chemical identity

• CAS Registry Number: 102-52-3

• Molecular formula: C7H16O4

• Molar mass: 164.20 g/mol (exact mass 164.10485899)

• IUPAC name: 1,1,3,3-tetramethoxypropane

• MolGod ID: MG_364-436-300-23 (https://molgod.org/id/MG_364-436-300-23)

• PubChem CID: 66019 (https://pubchem.ncbi.nlm.nih.gov/compound/66019)

• Wikidata: Q56291702 (https://www.wikidata.org/wiki/Q56291702)

• EC number: 203-037-2

• InChIKey: XHTYQFMRBQUCPX-UHFFFAOYSA-N

• SMILES: COC(CC(OC)OC)OC

Required attribution (CC BY-SA 4.0): "Tetramethoxypropane 3D model by MolGod.org — https://molgod.org/molecule/102-52-3/ — CC BY-SA 4.0"
Licence text: https://creativecommons.org/licenses/by-sa/4.0/