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Tos-PEG-Tos consists of two tosyl (Tos) functional groups attached to each end of a PEG chain.

Tos-PEG-Tos has been extensively utilized in the development of novel drug delivery systems, such as dendrimers, liposomes, and nanoparticles. Its unique chemical properties allow for the selective attachment of therapeutic agents, such as drugs or proteins, to the PEG chain via Tos groups. The resulting conjugates exhibit improved stability, increased solubility, and prolonged circulation time in vivo, leading to enhanced therapeutic efficacy and reduced side effects.

Tos-PEG-Tos has also been employed as a linker in various biomedical applications. For example, it can be used to cross-link biomolecules or to attach biomolecules onto surfaces, allowing for the development of novel biomaterials.


Cat# Name Structure M.W. Purity Pricing
AP11885Tos-PEG3-Tos414.49≥95% Pricing
AP11886Tos-PEG4-Tos458.54≥95% Pricing
AP11887Tos-PEG5-Tos502.59≥95% Pricing
AP11888Tos-PEG6-Tos546.65≥95% Pricing
AP11889Tos-PEG7-Tos590.7≥95% Pricing
AP11890Tos-PEG8-Tos634.75≥95% Pricing
AP11891Tos-PEG9-Tos678.81≥95% Pricing
AP11892Tos-PEG10-Tos722.86≥95% Pricing
AP11893Tos-PEG13-Tos855.02≥95% Pricing
AP11894Tos-PEG21-Tos1207.44≥95% Pricing
AP11895Tos-PEG22-Tos1251.49≥95% Pricing

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