Chelation of [ 111 In]In 3+ with the dual-size-selective macrocycles py-macrodipa and py 2 -macrodipa

The dual-size-selective chelators py-macrodipa and py 2 -macrodipa were investigated for their abilities to complex [ 111 In]In 3+ . These chelators form highly stable complexes of this diagnostic radiometal under mild radiolabeling conditions.