5-((4-Ethylpiperazine-1-yl)methyl)pyridine-2-amine ; 5-[(4-Ethyl-1-piperazinyl)methyl]-2-pyridinamine ; [5-[(4-Ethylpiperazin-1-yl)methyl]pyridin-2-yl]amine ; 5-((4-Ethylpiperazine-1-yl)methyl)pyridine-2-amine ;