(p-Phenylenebis(oxy-2-butynylene))bis(ethyldimethylammonium diiodide) 1,4-Bis(4-dimethylamino-2-butynyloxy)benzene diiodoethylate 17124-32-2 2-Butyn-1-aminium, 4,4'-(1,4-phenylenebis(oxy))bis(N-ethyl-N,N-dimethyl-, diiodide Ammonium, (p-phenylenebis(oxy-2-butynylene))bis(ethyldimethyl-, diiodide