N-(Acid-PEG8-carbonyl)-N-bis(PEG8-NHS ester) functions as a branched PEG linker containing two NHS ester groups for directly and efficiently reacting with amine-containing biomolecules. Through the presence of activators (e.g., HATU), the terminal carboxylic acid reacts with the primary amines. The PEG8 chains improve the molecule's flexibility and hydrophilicity. The branched structure allows for attaching ADC payloads or other entities.
Usually ships within 24 hours.