AMCA-PEG4-acid is a fluroescent reagent with a terminal carboxylic acid group. The hydrophilic PEG spacer arm increases water solubility, membrane permability, and conjugation efficiency. AMCA-PEG4-acid is a popular blue fluorescent tagging molecule that has a maximal absorption of 345 nm and emission at 450 nm. The terminal carboxylic acid can react with primary amine groups of activated NHS ester to form a stable amide bond. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
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