4-Chloro-3-nitroanisole — CAS 10298-80-3

Model Overview & Print Notes

Summary 4-Chloro-3-nitroanisole (C7H6ClNO3, CAS 10298-80-3) — a free educational 3D molecular model for teachers and students, by MolGod.org. Read the atoms directly: each sphere bears an 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. We build the label into the model: each sphere bears its recessed element symbol, readable by eye and by fingertip. The purpose is educational: teachers get printable files built to shorten the step of 'which atom is this?' and leave more time for chemistry. Instead of building a model from scratch, a teacher can go straight from the molecule's name to a file in the slicer. Curious about the science behind the engraving? The project page is at https://molgod.org/engraved-molecular-models/ . Let the group sketch what they see in 4-Chloro-3-nitroanisole, namely one aromatic 6-membered ring; afterwards they compare the sketch with the 18 bonds on the model (11 single, 1 double and 6 aromatic, drawn in Kekulé form). Counting task: 7 C + 6 H + 1 Cl + 1 N + 3 O gives 18 engraved spheres; can the class rebuild the formula C7H6ClNO3 from the model alone? Team task: with the model in hand, each group marks the nitro group (-NO2), the ether linkage (C-O-C) and the C-Cl bond, then writes down what they found. Lesson link: aromaticity and delocalised electrons, as well as organohalogen compounds and carbon-halogen bonds. Students who finish early can look up 4-Methoxy-2-nitrobenzoic acid (CAS 33844-21-2) and 4'-Chloro-3'-nitroacetophenone (CAS 5465-65-6), the closest neighbours in the collection, and list what differs. MolGod.org builds and releases these models at no cost for chemistry teaching. Teachers: use the model for an exit-ticket question on the structure the class has just studied. Free to print and free to bring into any classroom. If you share a photo, a lesson or an adapted version, the licence (CC BY-SA 4.0) asks for credit to "MolGod.org" as the model's author, a link to the original and to the licence text, a note of what you changed, and the same licence for adaptations; the attribution line below is ready to copy. You don't need an account, you don't pay anything, and a review is entirely up to you. 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 https://molgod.org/contact/ . Let's talk chemistry! Ask anything about this structure in the comments, and other teachers are warmly invited to share their lesson ideas. Looking for another compound? We gladly create an engraved 3D model for any CAS number you send us. Full record and more free models: https://molgod.org/molecule/10298-80-3/?utm_source=thingiverse&utm_medium=referral&utm_campaign=edu-3d-models Licence & provenance: https://molgod.org/licenses/stl/10298-80-3/ Same file on Wikimedia Commons: https://commons.wikimedia.org/wiki/File:4-Chloro-3-nitroanisole-3D-molecular-model-engraved-CAS-10298-80-3.stl A ball-and-stick model of 4-Chloro-3-nitroanisole 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: 253,190 triangles, closed (watertight) single solid. Coordinates in ångström (STL stores no unit) — scale the model deliberately in your slicer. Chemical identity CAS Registry Number: 10298-80-3 Molecular formula: C7H6ClNO3 Molar mass: 187.58 g/mol (exact mass 187.0036207) IUPAC name: 1-chloro-4-methoxy-2-nitrobenzene MolGod ID: MG_912-759-881-94 ( https://molgod.org/id/MG_912-759-881-94 ) PubChem CID: 25140 ( https://pubchem.ncbi.nlm.nih.gov/compound/25140 ) Wikidata: Q72455672 ( https://www.wikidata.org/wiki/Q72455672 ) EC number: 233-674-1 InChIKey: HISHUMDTGXICEZ-UHFFFAOYSA-N SMILES: COC1=CC(=C(C=C1)Cl) N+ [O-] Required attribution (CC BY-SA 4.0): "4-Chloro-3-nitroanisole 3D model by MolGod.org — https://molgod.org/molecule/10298-80-3/ — CC BY-SA 4.0" Licence text: https://creativecommons.org/licenses/by-sa/4.0/ Instructions STL mesh: 253,190 triangles, closed (watertight) single solid. Coordinates in ångström (STL stores no unit) — scale the model deliberately in your slicer.