2-[2-[4-[(R)-(4-chlorophenyl)-phenylmethyl]piperazine-1,4-diium-1-yl]ethoxy]acetic acid dichloride 2-[2-[4-[(R)-(4-chlorophenyl)-phenyl-methyl]piperazine-1,4-diium-1-yl]ethoxy]acetic acid dichloride 2-[2-[4-[(R)-(4-chlorophenyl)-phenylmethyl]-1-piperazine-1,4-diiumyl]ethoxy]acetic acid dichloride 2-[2-[4-[(R)-(4-chlorophenyl)-phenyl-methyl]piperazine-1,4-diium-1-yl]ethoxy]ethanoic acid dichloride