919528-07-7

1,4,7,10-Tetraazacyclododecane-1,4,7,10-tetraacetic acid,1,4,7-tris(1,1-dimethylethyl) ester,10-[2-[5-[[[6-[2-[(2R)-2-[[(1,1-dimethylethoxy)carbonyl]amino]-4-methyl-1-oxopentyl]hydrazinyl]-6-oxohexyl]amino]carbonyl]-2-pyridinyl]hydrazide],2,2,2-trifluoroa