Fluorescein-PEG12-amine, HCl salt is a xanthene dye with excitation/emission maximum of 494/517 nm and an amine group. The amine group makes the compound more reactive toward carboxylic acids, NHS esters and other carbonyl groups. It could be used as a quantum yield standard. Hydrophilic PEG spacer increases solubility in aqueous media and reduces steric hindrance during binding. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
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