Terephthalic Acid 3D Model — CAS 100-21-0

Terephthalic Acid (C8H6O4, CAS 100-21-0) — a free educational 3D molecular model for teachers and students, by MolGod.org. No legend required: the element symbol is engraved on each atom. Turn the model in your hand to see the shape of Terephthalic Acid: one aromatic 6-membered ring, and 18 bonds in total (10 single, 2 double and 6 aromatic, drawn in Kekulé form). Students work from the model back to the formula C8H6O4: the symbol count is 8 C + 6 H + 4 O, or 18 atoms all told. Where on the mod…

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