BP Fluor 488-PEG-CH2COOH, MW 2,000 possesses BP Fluor 488, which is a popular labeling dye used in Click Chemistry reactions. The dye has an excitation peak at 499 nm and an emission peak at 520 nm. The carboxylic handle can be further derivatized or conjugated with amines in the presence of HATU. The conjugates are widely used in microscopy, flow cytometry, and other applications.
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