DBCO-PEG-NHS (MW 5000)

DBCO-PEG-NHS (MW 5000) is a PEG derivative composed of DBCO, PEG units, and an NHS ester. The NHS ester can react with amino acids or other molecules containing amino groups. The DBCO group in DBCO-PEG-NHS (MW 5000) facilitates a strain-promoted alkyne-azide cycloaddition reaction (SPAAC) with molecules containing azide groups.