NPC-PEG-NPC

Poly(ethylene glycol) bis(nitrophenyl carbonate) (NPC-PEG-NPC) is a linear  PEG reagent with  reactive nitrophenyl carbonate or NPC group on both ends that can rapidly react with amine group.Nitrophenyl functional PEG, NPC PEG is an amino (-NH2) reactive PEG derivative that can be used to modify protein, peptide or any other surfaces with available amino groups either on their lysine residue or N-terminus. NPC PEGs react readily with amine groups at a pH of from 6.5 to 9.5.

MSDS of NPC-PEG-NPC