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

Catalog Number DYE-FLU-0017
CAS Number 2107273-44-7
Description Bis-(N,N'-carboxyl-PEG4)-Cy5 is a PEG linker 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 HATU) to form a stable amide bond. The hydophilic PEG spacer increases solubility in aqueous media.
Molecular Weight 887.5 g/mol
Molecular Formula C47H67ClN2O12
Purity 98%
Solubility Water, DMSO, DMF, DCM
Application For Industrial and laboratory use
Storage -20°C
Emission Maximum 667 nm
Excitation Maximum 649 nm
Extinction Coefficients 170000
Shipping Ambient temperature

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