1-phenyl-3-[6-(phenylcarbamoylamino)hexyl]urea

2,2,2-trifluoro-N-[6-[(2,2,2-trifluoroacetyl)amino]hexyl]acetamide

己二胺四甲叉膦酸

1,6-丙二胺四乙酸

4-(1-氮杂环庚烷)-1-丁醇