N-(mPEG4)-N'-(PEG4-Acid)-Cy5


N-(mPEG4)-N'-(PEG4-Acid)-Cy5

Catalog:CDPB-04766

Unit Size:2 mg, 5 mg, 10 mg

INQUIRY Datasheet

Specifications
Common Use N-(mPEG4)-N'-(PEG4-acid)-Cy5 is a near infrared (NIR) fluorescent Cy 5 labeled PEG derivative containing 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. Cy5 labeled PEG derivative can be easily traced from its blue color and strong fluorescence.
Structure N-(mPEG4)-N'-(PEG4-Acid)-Cy5
PEG Molecular Weight 829.5 g/mol
Functional Group Methyl/Carboxylic Acid
Fluorophores Cy5
Purity 98%
Molecular Formula C45H65ClN2O10
Storage -20°C in the dark
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