Bis-(N,N'-carboxyl-PEG4)-Cy5


Bis-(N,N'-carboxyl-PEG4)-Cy5

Catalog:CDPB-04772

Unit Size:1 mg, 2 mg, 5 mg

INQUIRY Datasheet

Specifications
Common Use Bis-(N,N'-carboxyl-PEG4)-Cy5 is a PEG derivative containing a cyanine dye with excitation/emmission 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.
Structure Bis-(N,N'-carboxyl-PEG4)-Cy5
PEG Molecular Weight 887.5 g/mol
Functional Group Carboxylic Acid
Fluorophores Cy5
Purity 98%
Molecular Formula C47H67ClN2O12
Storage -20°C in the dark
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