Sulfo DBCO-PEG4-UBQ-2 is a click chemistry reagent combining a dark quencher, UBQ-2, with a polyaromatic-azo backbone, offering no native emission, and a hydrophilic PEG spacer arm. It effectively quenches fluorescence in the 560-670 nm range, ideal for qPCR probes and FRET applications with orange to far-red dyes. The DBCO group facilitates copper-free click chemistry, while the sulfo group enhances water solubility. Reagent grade, for research use only. Please contact us for GMP-grade inquiries.
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