Amino-PEG4-bis-PEG4-alkyne is a branched, water-soluble PEG linker designed for maximizing payload capacity in antibody-drug conjugates (ADCs). Its amino group readily reacts with carboxylic acids, NHS esters, and carbonyl groups, while the two alkyne groups enable efficient click chemistry conjugation with azide-bearing biomolecules. The incorporated PEG linkers enhance solubility, contributing to optimal ADC performance. Reagent grade, for research use only.
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