Terephthaloyl chloride 3D Model — CAS 100-20-9

Terephthaloyl chloride (C8H4Cl2O2, CAS 100-20-9) — a free educational 3D molecular model for teachers and students, by MolGod.org. Instead of colour coding, every sphere carries its engraved element symbol. Which rings can the class see in Terephthaloyl chloride? The answer is one aromatic 6-membered ring, joined up by 16 bonds altogether (8 single, 2 double and 6 aromatic, drawn in Kekulé form). A five-minute warm-up: read the symbol on every sphere and write down the totals (8 C + 4 H + 2 Cl…

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