Overview
HO-PEG-DO is a polyethylene glycol (PEG) derivative with a hydroxyl terminus, widely used in pharmaceutical and biotechnology applications. PEG derivatives like HO-PEG-DO are valued for their biocompatibility, hydrophilicity, and ability to modify the pharmacokinetics of conjugated molecules. HO-PEG-DO is commonly employed in drug delivery systems to enhance solubility, reduce immunogenicity, and prolong circulation time. Its versatility makes it a critical component in the development of advanced therapeutic formulations.
Physical and Chemical Properties
HO-PEG-DO exhibits typical PEG characteristics, including high water solubility and low toxicity. The physical state can vary from a white powder to a viscous liquid, depending on the molecular weight and purity. The compound is stable under standard storage conditions but may degrade under extreme temperatures or prolonged exposure to light. Its solubility in both aqueous and organic solvents makes it highly adaptable for various conjugation and formulation processes.
Main Applications
HO-PEG-DO is primarily used in drug delivery systems to improve the therapeutic profile of drugs. It is also utilized in bioconjugation to attach proteins, peptides, or small molecules to PEG chains, enhancing their stability and bioavailability. In addition, HO-PEG-DO finds applications in surface modification of nanoparticles and medical devices to reduce fouling and improve biocompatibility. Its role in advanced therapeutics and diagnostics continues to expand with ongoing research.
Safety and Storage
HO-PEG-DO is generally considered safe for use in pharmaceutical applications, with low toxicity and minimal environmental impact. However, standard laboratory safety practices, such as wearing gloves and eye protection, should be followed. Storage should be in a cool, dry place, preferably under an inert atmosphere to prevent degradation. The shelf life can vary, so it is advisable to check the manufacturer's recommendations for specific batches.
B2B Procurement Guide
When procuring HO-PEG-DO, B2B buyers should specify the required molecular weight, purity, and end-use application. Reputable suppliers should provide certificates of analysis (CoA) to verify product quality. Bulk pricing is often negotiable, especially for large-scale pharmaceutical or biotech applications. Buyers should also consider logistics, such as storage and handling requirements, to ensure product integrity upon delivery.
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