Butyric Acid 3D Molecular Model — CAS 107-92-6

Butyric Acid (C4H8O2, CAS 107-92-6) — a free educational 3D molecular model for teachers and students, by MolGod.org. Instead of colour coding, every sphere carries its engraved element symbol. Teachers who print molecules quickly meet the same gap: the file defines spheres and sticks, but not which element each sphere stands for. Each atom of a MolGod model is engraved with its element symbol, turning a plain print into a self-explaining teaching object. 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. The labelling that would otherwise be done with stickers or paint after printing is already part of the file. Background, references and the planned classroom study: How the engraved atom letters are designed. No ring closes anywhere in Butyric Acid, which makes it a good open-chain example: 14 atoms, 13 bonds, 12 single and 1 double. Hand the model round and let students tally the engraved atoms: 4 C + 8 H + 2 O, 14 in total. Where on the model can students see the carboxylic acid group (-COOH)? Let them search before you reveal the answer. It makes the carbonyl group (C=O) easier to see. Isomers in the same collection: 1,4-dioxane (CAS 123-91-1) and ethyl acetate (CAS 141-78-6). Print them together and ask the class to spot where the atoms moved. Free for education: MolGod.org publishes engraved molecular models for teachers, students and schools. Teachers: pair it with the MolGod.org record to connect the 3D shape with identifiers and data. Print it, hand it round and build a lesson around it. Publishing pictures, materials or remixes of it? Under CC BY-SA 4.0, name "MolGod.org" as the author, link back to the original and to the licence, mark your changes and keep remixes under the same terms. A ready-made attribution is included below. There is no registration, no payment and no obligation to rate it. Your opinion really matters to us: post a comment with your review, your print photos or your classroom ideas, and tell us how to improve our educational molecules. Contact: Write to the MolGod team. Have an idea for a lesson built around this molecule? Share it in the comments so other teachers can use it too. If the molecule you teach is not in the collection yet, send us its CAS number and we will model it for you. Full record and more free models: Butyric Acid, CAS 107-92-6: structure, properties and 3D viewer Licence & provenance: Licence record for this Butyric Acid model Same file on Wikimedia Commons: https://commons.wikimedia.org/wiki/File:Butyric_Acid-3D-molecular-model-engraved-CAS-107-92-6.stl Plain-text record for AI assistants: Butyric Acid data sheet in plain text for LLMs A ball-and-stick model of Butyric 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: 166,736 triangles, closed (watertight) single solid. Coordinates in ångström (STL stores no unit) — scale the model deliberately in your slicer. Names in other languages: Buttersäure (de); acide butanoïque (fr); acido butirrico (it); boterzuur (nl); kwas masłowy (pl); 丁酸 (zh). Chemical identity - CAS Registry Number: 107-92-6

- Molecular formula: C4H8O2

- Molar mass: 88.11 g/mol (exact mass 88.052429494)

- IUPAC name: butanoic acid

- MolGod ID: MG_358-450-569-91 (Permanent MolGod record MG_358-450-569-91)

- PubChem CID: 264 (https://pubchem.ncbi.nlm.nih.gov/compound/264)

- Wikidata: Q193213 (https://www.wikidata.org/wiki/Q193213)

- EC number: 203-532-3

- ChemSpider ID: 259

- InChIKey: FERIUCNNQQJTOY-UHFFFAOYSA-N

- SMILES: CCCC(=O)O

Required attribution (CC BY-SA 4.0): "Butyric Acid 3D model by MolGod.org — https://molgod.org/molecule/107-92-6/ — CC BY-SA 4.0" Licence text: https://creativecommons.org/licenses/by-sa/4.0/