Linuron 3D Molecular Model — CAS 330-55-2

Linuron (C9H10Cl2N2O2, CAS 330-55-2) — a free educational 3D molecular model for teachers and students, by MolGod.org. Read the atoms directly: each sphere bears an engraved element symbol.

Turn the model in your hand to see the shape of Linuron: one aromatic 6-membered ring, and 25 bonds in total (18 single, 1 double and 6 aromatic). Give each pair of students the model and a blank sheet: recording every engraved symbol should lead them to 9 C + 10 H + 2 Cl + 2 N + 2 O, which is 25 atoms. Where on the model can students see the urea linkage (-N-CO-N-) and the two C-Cl bonds? Let them search before you reveal the answer. Use it when you teach aromaticity and delocalised electrons, the carbonyl group (C=O), as well as organohalogen compounds and carbon-halogen bonds. Where could this molecule form hydrogen bonds? The computed count is 2 acceptors and 1 donor.

Free for education: MolGod.org publishes engraved molecular models for teachers, students and schools. Teachers: pass the model round at the start of the lesson, before showing any diagram.

Full record and more free models: https://molgod.org/molecule/330-55-2/?utm_source=myminifactory&utm_medium=referral&utm_campaign=edu-3d-models Licence & provenance: https://molgod.org/licenses/stl/330-55-2/ Same file on Wikimedia Commons: https://commons.wikimedia.org/wiki/File:Linuron-3D-molecular-model-engraved-CAS-330-55-2.stl

A ball-and-stick model of Linuron 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: 336,820 triangles, closed (watertight) single solid. Coordinates in ångström (STL stores no unit) — scale the model deliberately in your slicer.

Names in other languages: 利谷隆 (zh).

Chemical identity - CAS Registry Number: 330-55-2 - Molecular formula: C9H10Cl2N2O2 - Molar mass: 249.09 g/mol (exact mass 248.0119330) - IUPAC name: 3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea - MolGod ID: MG_290-797-782-17 (https://molgod.org/id/MG_290-797-782-17) - PubChem CID: 9502 (https://pubchem.ncbi.nlm.nih.gov/compound/9502) - Wikidata: Q421476 (https://www.wikidata.org/wiki/Q421476) - EC number: 206-356-5 - ChemSpider ID: 9130 - InChIKey: XKJMBINCVNINCA-UHFFFAOYSA-N - SMILES: CN(C(=O)NC1=CC(=C(C=C1)Cl)Cl)OC

Required attribution (CC BY-SA 4.0): "Linuron 3D model by MolGod.org — https://molgod.org/molecule/330-55-2/ — CC BY-SA 4.0" Licence text: https://creativecommons.org/licenses/by-sa/4.0/