PEG300 (Polyethylene glycol 300), a neutral polymer of molecular weight 300, is a water-soluble, low immunogenic and biocompatible polymer formed by repeating units of ethylene glycol^[1][2].

The FDA has approved polyethylene glycol (PEG) for use as a vehicle or base in foods, cosmetics and pharmaceuticals, including injectable, topical, rectal and nasal formulations. PEG shows little toxicity, and is eliminated from the body intact by either the kidneys (for PEGs< 30 kDa) or in the faeces (for PEGs >20 kDa). PEG lacks immunogenicity, and antibodies to PEG are generated in rabbits only if PEG is combined with highly immunogenic proteins^[3].

Guidelines (Following is our recommended protocol. This protocol only provides a guideline, and should be modified according to your specific needs).
The final concentration of PEG300 can go up to 50% in the formulations for intravenous and intramuscular injection without any toxic effects. When administered orally, the highest concentration of PEG300 can reach up to 90%^[4][5].

300.00

Liquid

25322-68-3

聚乙二醇

Room temperature in continental US; may vary elsewhere.

4°C, sealed storage, away from moisture

DMSO : 100 mg/mL(333.33 mM;Need ultrasonic)

H₂O : ≥ 50 mg/mL(166.67 mM)

*"≥" means soluble, but saturation unknown.