Methyl 3-hydroxyisoxazole-5-carboxylate 3D Molecular Model — CAS 10068-07-2

Methyl 3-hydroxyisoxazole-5-carboxylate (C5H5NO4, CAS 10068-07-2) — a free educational 3D molecular model for teachers and students, by MolGod.org. Every atom carries its engraved element symbol, so no colour key is needed.

In Methyl 3-hydroxyisoxazole-5-carboxylate the ring system sets the overall shape: one 5-membered ring. Altogether 15 bonds hold the model together (12 single and 3 double). Counting task: 5 C + 5 H + 1 N + 4 O gives 15 engraved spheres; can the class rebuild the formula C5H5NO4 from the model alone? Where on the model can students see the ester group (-COO-)? Let them search before you reveal the answer. It makes the carbonyl group (C=O) easier to see. Natural follow-up models: Dimethyl Phthalate (CAS 131-11-3) and Methylparaben (CAS 99-76-3), close enough in structure for a spot-the-difference task.

MolGod.org shares these models for free to make chemistry tangible in the classroom. 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/10068-07-2/?utm_source=printables&utm_medium=referral&utm_campaign=edu-3d-models
Licence & provenance: https://molgod.org/licenses/stl/10068-07-2/
Same file on Wikimedia Commons: https://commons.wikimedia.org/wiki/File:Methyl_3-hydroxyisoxazole-5-carboxylate-3D-molecular-model-engraved-CAS-10068-07-2.stl

A ball-and-stick model of Methyl 3-hydroxyisoxazole-5-carboxylate 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: 210,604 triangles, closed (watertight) single solid. Coordinates in ångström (STL stores no unit) — scale the model deliberately in your slicer.

Chemical identity

• CAS Registry Number: 10068-07-2

• Molecular formula: C5H5NO4

• Molar mass: 143.10 g/mol (exact mass 143.02185764)

• IUPAC name: methyl 3-oxo-1,2-oxazole-5-carboxylate

• MolGod ID: MG_843-190-056-04 (https://molgod.org/id/MG_843-190-056-04)

• PubChem CID: 2724585 (https://pubchem.ncbi.nlm.nih.gov/compound/2724585)

• Wikidata: Q72491339 (https://www.wikidata.org/wiki/Q72491339)

• EC number: 628-550-2

• InChIKey: BBFWUUBQSXVHHZ-UHFFFAOYSA-N

• SMILES: COC(=O)C1=CC(=O)NO1

Required attribution (CC BY-SA 4.0): "Methyl 3-hydroxyisoxazole-5-carboxylate 3D model by MolGod.org — https://molgod.org/molecule/10068-07-2/ — CC BY-SA 4.0"
Licence text: https://creativecommons.org/licenses/by-sa/4.0/