N-(Azido-PEG2)-N-Fluorescein-PEG4-acid is a fluorescein dye analogue containing a terminal azide group and a terminal carboxylic acid. The azide group enables PEGylation via Click Chemistry. The terminal carboxylic acid can be reacted with primary amino groups in the presence of activators (e.g. EDC, or DCC) to form a stable amide bond. References: Sano K, Nakajima T, Miyazaki K, Ohuchi Y, Ikegami T, Choyke PL, Kobayashi H. Short PEG-linkers improve the performance of targeted, activatable monoclonal antibody-indocyanine green optical imaging probes. Bioconjug Chem. 2013 May 15;24(5):811-6. doi: 10.1021/bc400050k. Epub 2013 May 3. PubMed PMID: 23600922; PubMed Central PMCID: PMC3674550.

纯度：≥98%

CAS：2086689-06-5