Catalog No. : PSB-4222
Product Name : 4-Arm PEG-Tosylate, MW 5k
Description :

4-Arm PEG-Tosylate is a multiarm PEG derivative with tosyl or toluenesulfonyl groups at each terminal of the four arms connected to one pentaerythritol core. Tosylate is a very good leaving group for neucleophilic substitution reaction. 4-Arm PEG-Mesylate or mesyl may be offered through custom synthesis.

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