Gly-Gly-Gly-PEG4-azide is an ADC linker used in the synthesis of ADCs. Gly-Gly-Gly-PEG4-azide is a click chemistry reagent, it contains an azide group that can undergo CuAAc with molecules containing alkyne groups. It can also undergo SPAAC reactions with molecules containing DBCO or BCN groups.
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