Product Description: BCN-endo-PEG7-NH2 is an ADC Linker containing 7 PEG units. BCN-endo-PEG7-NH2 contains the lyophilic bidentate macrocyclic ligand endo-BCN, which can further synthesize macrocyclic complexes. In click chemistry, endo-BCN can react with molecules containing azide groups to form stable triazoles in the absence of catalysts.