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In the title salt, C14H13Br3NOS2+·Br, synthesized by bromination of mesoionic 2-[2-(piperidin-1-yl)-1,3-di­thiol-2-ylium-4-yl]phenolate in glacial acetic acid, the dihedral angle between the 1,3-di­thiol­ium ring and the phenolic substituent ring is 45.9 (3)° due to the steric influence of the ortho-Br group on the 1,3-di­thiol­ium ring. The piperidine ring adopts a chair conformation. In the crystal, the cation and anion are linked by an O—H...Br hydrogen bond.
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