(m-Phenylenebis(oxy-2-butynylene))bis(ethyldimethylammonium diiodide) 1,3-Bis(4-dimethylamino-2-butynyloxy)benzene diiodoethylate 17124-35-5 2-Butyn-1-aminium, 4,4'-(1,3-phenylenebis(oxy))bis(N-ethyl-N,N-dimethyl-, diiodide Ammonium, (m-phenylenebis(oxy-2-butynylene))bis(ethyldimethyl-, diiodide