NHS-PEG-CHO (MW 5000)

NHS-PEG-CHO (MW 5000) [NHS-PEG-Aldehyde (MW 5000) ] is a PEG derivative composed of an aldehyde group (-CHO), PEG units, and an NHS ester. The NHS ester can couple with amino acids or other molecules containing amino groups. The aldehyde group is a reactive functional group that can react with compounds containing amino or hydroxyl groups.