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Currently, the IDT ZEN™ quencher is available with FAM, HEX, TET, Yakima Yellow® (ELITech Group), JOE™ (ThermoFisher), MAX™, and SUN™ fluorophores. Double-quenched probes have significantly lower background fluorescence, especially for longer probes. The ZEN quencher is available on PrimeTime™ qPCR Probes and on the probes supplied with PrimeTime qPCR Probe Assays. For any special oligonucleotide requests that include the ZEN quencher but are not found on our website (non-catalog requests), please contact firstname.lastname@example.org. For more information, see Double-quenched probes increase qPCR sensitivity and precision.
ZEN, SUN, MAX, and PrimeTime are trademarks of IDT.