1,4-Bis((1-hexyl-3-piperidinyl)carbonyl)piperazine dihydriodide 126661-39-0 BPAT-143 dihydriodide N,N'-Bis(1-hexylnipecotoyl)piperazine dihydriodide Piperazine, 1,4-bis((1-hexyl-3-piperidinyl)carbonyl)-, dihydriodide