4,4'-Diaminodiphenyl Ether molecular model (C12H12N2O, CAS 101-80-4): a free, print-ready ball-and-stick model with the element symbol engraved on every atom, designed for chemistry lessons.

Which rings can the class see in 4,4'-Diaminodiphenyl Ether? The answer is two 6-membered rings, both aromatic, joined up by 28 bonds altogether (16 single and 12 aromatic). How many atoms can the class find? The engraved spheres give 12 C + 12 H + 2 N + 1 O, so the answer should be 27. Teachers covering aromaticity and delocalised electrons, as well as amines and basicity will find it a concrete example. Want a comparison? The most similar structure in the MolGod collection is p,p'-Oxybis(benzenesulfonyl hydrazide) (CAS 80-51-3). On the printed model, students can point to the ether linkage (C-O-C) and the two primary amino groups (-NH2).

Printing: the STL is in angstrom units - scale it 10x in the slicer (1 angstrom = 10 mm). Use supports under the bonds; PLA works well.

MolGod ID: MG_469-591-254-16

Atomic coordinates: PubChem computed 3D conformer; mesh generated by MolGod's own software. Licence: CC BY-SA 4.0, MolGod.

Full record, safety data and licence page: search "MolGod" with CAS 101-80-4, or see the MolGod profile.