1,4,7,10-四氮杂环十二烷-1,4,7,10-四乙酸 1-(2,5-二氧代-1-吡咯烷基)酯

1,4,7,10-Tetraazacyclododecane-1,4,7,10-tetraacetic acid, 1-(2,5-dioxo-1-pyrrolidinyl) ester ·