1,4,7-三(乙氧羟基甲基)-1,4,7,10-四阿扎环十四烷

1,4,7,10-tetraazacyclododecane-1-acetic acid ethyl ester

1,4,7,10-tetramethyl-1,4,7,10-tetrazacyclododecane

2-[4,7,10-tris(2-hydroxyethyl)-1,4,7,10-tetrazacyclododec-1-yl]ethanol

2-[4,7-bis[2-(methylamino)-2-oxoethyl]-1,4,7,10-tetrazacyclododec-1-yl]-N-methylacetamide