8arm-PEG-NPC

8-arm polyethylene glycol-Nitrophenyl Carbonates,8 arm-PEG-NPC ，NPC-PEG-8 arm  from ruixi 8-arm PEG-Nitrophenyl Carbonates (8-arm PEG-NPC)  is a multiarm PEG derivative with para-nitrophenyl carbonate groups at each terminal of the eight arms connected to .one hexaglycerol core.. NPC is a good leaving group which can be easily substituted by amine-containing groups.

msds of 8 arm-PEG-NPC