1,1'-Trimethylenebis(pyridinium bromide) 1,3-Bis(pyridinyl)-propane 14208-07-2 NSC36749 Pyridinium, 1,1'-(1,3-propanediyl)bis-, dibromide Pyridinium, 1,1'-trimethylenebis-, dibromide WLN: T6KJ A3- AT6KJ &E 2