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Tos-PEG4-Acid


Tos-PEG4-Acid

Catalog:CDPB-041435

INQUIRY Datasheet

Common UseTos-PEG4-acid is a PEG derivative containing a tosyl group and a terminal carboxylic acid. The hydrophilic PEG spacer increases solubility in aqueous media. The tosyl group is a very good leaving group for nucleophilic substitution reactions. The terminal carboxylic acid can be reacted with primary amine groups in the presence of activators (e.g. EDC, or DCC) to form a stable amide bond.
Structure Tos-PEG4-Acid
PEG Molecular Weight376.4 g/mol
Functional GroupTosyl/Acid
Purity98%
Storage-20°C
Molecular FormulaC16H24O8S
CAS No.1453117-42-4
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