BOC Sciences is committed to supplying high quality polyethylene glycol (PEG) derivatives, PEG copolymers and PEG raw materials for the research of universities, research institutions, biotechnology companies and pharmaceutical companies to meet the needs of the vast majority of customers. 8-Arm PEG-SS (tripentaerythritol)
https://peg.bocsci.com/catcs/1053/8-arm-peg-ss-tripentaerythritol/
