1,4-dinicotinoylpiperazine

N,N'-Bis(3-pyridylformyl)piperazine

1,4-Bis(3-pyridylcarbonyl)piperazine

1,4-Bis(3-pyridinylcarbonyl)piperazine

Piperazine-1,4-diylbis[(3-pyridyl) ketone]