Azido-dPEG®3-amine, product number 10522, is a carbonyl-reactive, biocompatible crosslinking reagent that can participate in multiple types of reactions. The product consists of an azide group and an amine group on opposite ends of a single molecular weight, discrete polyethylene glycol (dPEG®) chain that is 14 atoms (15.4 Å) long. Alkynes react with the azido group in copper-catalyzed, ruthenium-catalyzed, and strain-promoted click chemistry to yield triazole derivatives. Moreover, the azide group functions as a masked amine that reduces to a primary amine via a suitable reducing agent. Furthermore, Azido-dPEG®3-amine can participate in a Staudinger ligation with appropriate phosphine derivatives to create a water-soluble product.
dPEG® Technology Makes a Difference in PEGylation
Quanta BioDesign invented discrete PEG technology. We manufacture and sell our products under the dPEG® trade name. Our products provide all of the benefits of conventional PEG linkers and spacers, including increased water solubility, increased hydrodynamic volume, improved biodistribution and pharmacokinetic profiles in vivo, reduction or elimination of immunogenicity of conjugated molecules, and many more. However, our products have no dispersity, unlike traditional polymer PEG products. Thus, our products eliminate the analytical difficulties that traditional PEG products produce. For more information on our dPEG® technology and products, please visit our “What is dPEG®?” page. To see answers to our most frequently asked questions, please click this link.
Several patents and scientific publications specifically cite the use of Azido-dPEG®3-amine from Quanta BioDesign. The amphiphilic dPEG® product binds up to three molecules of water per oxygen atom in the PEG chain, which contains three (3) oxygens, hence the dPEG®3 designation. Thus, this versatile crosslinker adds hydrodynamic volume and imparts water solubility to any compound to which it is conjugated. Also, because the terminal azide group functions in multiple different types of reactions, Azido-dPEG®3-amine can act as either a heterobifunctional or a homobifunctional crosslinking reagent.
The published uses of Azido-dPEG®3-amine include the following:
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