76986-86-2 BAPDD Bis(3-azidopyridinium)-1,10-decane Bis(3-azidopyridinium)-1,10-decane diiodide Bis(3-azidopyridinium)-1,10-decane perchlorate Pyridinium, 1,1'-(1,10-decanediyl)bis(3-azido-, diiodide