4,4'-Diaminodiphenyl Ether — CAS 101-80-4

4,4'-Diaminodiphenyl Ether (C12H12N2O, CAS 101-80-4) — a free educational 3D molecular model for teachers and students, by MolGod.org. Each atom is labelled with its own engraved element symbol: no colour chart needed. Turn the model in your hand to see the shape of 4,4'-Diaminodiphenyl Ether: two 6-membered rings, both aromatic, and 28 bonds in total (16 single and 12 aromatic). Quick starter: ask students to count the engraved symbols (12 C + 12 H + 2 N + 1 O) and check that they add up to 27 atoms and the formula C12H12N2O. Topics it supports in class: aromaticity and delocalised electrons, as well as amines and basicity. Its closest structural relative in the MolGod.org collection is p,p'-Oxybis(benzenesulfonyl hydrazide) (CAS 80-51-3); printing them side by side makes a quick compare-and-contrast exercise. On the printed model, students can point to the ether linkage (C-O-C) and the two primary amino groups (-NH2). MolGod.org builds and releases these models at no cost for chemistry teaching. Teachers: hand out printed copies and ask students to rebuild the structural formula from the model. Full record and more free models: https://molgod.org/molecule/101-80-4/?utm_source=thingiverse&utm_medium=referral&utm_campaign=edu-3d-models Licence & provenance: https://molgod.org/licenses/stl/101-80-4/ Same file on Wikimedia Commons: https://commons.wikimedia.org/wiki/File:4,4'-Diaminodiphenyl_Ether-3D-molecular-model-engraved-CAS-101-80-4.stl A ball-and-stick model of 4,4'-Diaminodiphenyl Ether 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: 359,500 triangles, closed (watertight) single solid. Coordinates in ångström (STL stores no unit) — scale the model deliberately in your slicer. Names in other languages: 4,4'-Oxydianilin (de); 4,4′-oksydianilina (pl); 4,4'-二氨基二苯醚 (zh). Chemical identity - CAS Registry Number: 101-80-4 - Molecular formula: C12H12N2O - Molar mass: 200.24 g/mol (exact mass 200.094963011) - IUPAC name: 4-(4-aminophenoxy)aniline - MolGod ID: MG_469-591-254-16 (https://molgod.org/id/MG_469-591-254-16) - PubChem CID: 7579 (https://pubchem.ncbi.nlm.nih.gov/compound/7579) - Wikidata: Q3704503 (https://www.wikidata.org/wiki/Q3704503) - EC number: 202-977-0 - ChemSpider ID: 7298 - InChIKey: HLBLWEWZXPIGSM-UHFFFAOYSA-N - SMILES: C1=CC(=CC=C1N)OC2=CC=C(C=C2)N

Required attribution (CC BY-SA 4.0): "4,4'-Diaminodiphenyl Ether 3D model by MolGod.org — https://molgod.org/molecule/101-80-4/ — CC BY-SA 4.0" Licence text: https://creativecommons.org/licenses/by-sa/4.0/