A chemical compound combining anthracene structure with a gallic acid derivative, used in organic synthesis and dye production.
From anthracene + 'gallol' (derived from 'gallic acid', from 'gall nuts'—plant growths used in medieval dyes and inks). The '-ol' suffix indicates hydroxyl groups.
Gall nuts, where this name comes from, were literally worth their weight in silver in medieval times—scribes used gallotannins from them to make permanent ink that still reads clearly 500 years later!
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