Core Applications of PEG

Polyethylene glycol (PEG) is a versatile polymer formed by the stepwise addition polymerization of ethylene oxide and water or ethylene glycol, with the chemical formula HO(CH₂CH₂O)ₙH. PEG exhibits excellent water solubility, lubricity, moisturizing properties, biocompatibility, and low toxicity, leading to its widespread application in a variety of industries, including pharmaceuticals, cosmetics, chemicals, electronics, and textiles.

However, PEG's core application lies in the pharmaceutical field. In drug modification, PEG is used to extend the half-life, reduce immunogenicity, and improve stability of proteins, peptides, and small molecule drugs. Examples include:

Long-acting protein drugs, such as PEG-modified growth hormone

mRNA vaccine delivery systems: PEG-2000 derivatives are used in mRNA vaccine LNP delivery systems

Antibody-drug conjugates and protein degradation-targeted chimeras: PEG is used as a linker to improve drug solubility and stability

The PEG industry is currently experiencing rapid growth, particularly in the pharmaceutical and biotechnology sectors. With the development of emerging applications such as mRNA technology, ADC drugs, and medical aesthetics, the PEG market is expected to continue to expand. At the same time, high-purity, customized PEG derivatives (such as monodisperse PEG) will become the focus of future competition. We will continue to pay attention to the latest developments in PEG in the pharmaceutical field and provide our customers with professional technical support and customized solutions.