Cyclen 是一种氮杂冠醚的类似物，是制备有效的大环螯合物的中间体，是制备磁共振造影剂的前体物质。

Cyclen is a macrocycle capable of selectively binding cations that used as a ligand in chemistry for instance with chemicals used in MRI contrast agents.

294-90-6

C8H20N4

172.276

轮环藤宁;1,4,7,10-tetraazacyclododecane

DMSO:197.4 mM
H2O:197.4 mM
Powder: -20°C for 3 years
In solvent: -80°C for 2 years