(2-chlorophenyl)methyl-[2-[[2-[2-[(2-chlorophenyl)methyl-diethylazaniumyl]ethylamino]-2-oxoacetyl]amino]ethyl]-diethylazanium;dichloride;tetrahydrate; Ambenonium Dichloride Tetrahydrate; Benzenemethanaminium, N,N′-[(1,2-dioxo-1,2-ethanediyl)bis(imino-2,1-ethanediyl)]bis[2-chloro-N,N-diethyl-, dichloride, tetrahydrate; 2,2'-(oxalylbis(azanediyl))bis(N-(2-chlorobenzyl)-N,N-diethylethan-1-aminium) Chloride Tetrahydrate