High-purity t-Boc-N-Amido-PEG7-Tos CAS:206265-94-3 from Axispharm is a PEG linker containing tosyl and Boc-amine groups. Its hydrophilic PEG spacer can increase the solubility of compounds in aqueous media. Tosyl groups can be easily substituted with thiols and amino groups by nucleophilic substitution. The Boc group can be deprotected under mild acidic conditions to form free amines for amide coupling with acid-containing biomolecules.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.