Cy5 maleimide is a mono-reactive dye containing maleimide group, which selectively couples with thiol groups (for example, with cysteines in peptides and proteins) to yield Cy5 (an analog of Cy5) labeled conjugates. Sulfo-Cy5 maleimide version is available for the labeling of antibodies and other sensitive proteins. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
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