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. Instead of colour coding, every sphere carries its engraved element symbol. In 4,4'-Diaminodiphenyl Ether the ring system sets the overall shape: two 6-membered rings, both aromatic. Altogether 28 bonds hold the model together (16 single and 12 aromatic, drawn in Kekulé form). A five-minute warm-up: read the symbol on every sphere and write down the totals (12 C…

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