N-DBCO-N-bis(PEG2-amide-PEG4-Val-cit-PAB-MMAE) is a precursor of antibody drug conjugates (ADCs). It contains a DBCO group and two protease-sensitive Val-Cit dipeptides with MMAE payloads. DBCO group is a highly reactive cycloalkyne which is commonly used for copper-free Click Chemistry reactions.
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