1,5-Bis(4-trimethylammoniumphenyl)pentan-3-one 1,5-Bis(4-trimethylammoniumphenyl)pentan-3-one diiodide 1170-68-9 Benzenaminium, 4,4'-(3-oxo-1,5-pentanediyl)bis(N,N,N-trimethyl-, diiodide Btapp-3