polyethylene glycol-300

PEG300 (Polyethylene glycol 300) is a polymer formed from repeating units of ethylene glycol that is water soluble, low immunogenicity, and biocompatible. PEG300 is a neutral polymer with a molecular weight of 300.

Polyethylene glycol (PEG) is approved by the FDA for use as a carrier or matrix in foods, cosmetics, and pharmaceuticals, including injectable, topical, rectal, and nasal formulations. PEG exhibits minimal toxicity and can be fully excreted from the body via the kidneys (for PEG <30 kDa) or feces (for PEG >20 kDa). It is non-immunogenic, and antibodies to PEG only develop in rabbits when PEG is combined with highly immunogenic proteins.

Poly(ethylene glycol) methyl ether methacrylate (MW 300) is a non-linear variant of polyethylene glycol (PEG) that can be used for modifying PEG surfaces.