bis (n,n' amine peg3) cy5

Bis-(N,N’-amine-PEG3)-Cy5 is a PEG-derived linker compound employed for the synthesis of PROTACs. It serves as a PEG-based PROTAC linker in the chemical structure[1].

WUN 73823, also known as N,N'-bis-(acid-PEG3)-Benzothiazole Cy5 is a PEG derivative containing a cyanine dye with excitation emission maximum 649 667 nm and a free terminal carboxyl acid. Terminal carboxylic acid can react with primary amine groups in the presence of of activators (e.g. EDC, or DCC) to form a stable amide bond. The hydophilic PEG spacer increases solubility in aqueous media. This product has no formal name at the moment. For the convenience of communication, a temporary code name was therefore proposed according to MedKoo Chemical Nomenclature (see web page: https: www.medkoo.com page naming).