N-Propargylmaleimide efficiently adds a terminal alkyne group to antibodies, cysteine-containing peptides, or other thiol-containing molecules. The maleimide group specifically reacts with reduced thiols at pH 6.5-7.5, forming stable thioether bonds. The short spacer arm minimizes added mass. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
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