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The 5-Cy5 modification incorporates a fluorescent Cy™ 5 dye at the 5' terminus of an oligonucleotide. 5' Cy5 modified oligonucleotides can be used in a wide array of applications including dual-labeled fluorogenic probes for real-time PCR. This non-sulfonated cyanine based dye is water soluble and bright, fluorescing in the far-red region of the visible spectrum, and can be effectively quenched by BHQ®-2 dye. Quasar® 670 can be used as a direct replacement for the Cy 5 dye.

Properties:

  • Formula:

    C31H38N2O5P

  • Molecular Weight:

    549.62

  • Absorption Maximum (Lambda Max):

    646

  • Extinction Coefficient at Lambda max:

    250000

  • Extinction Coefficient at 260 nm:

    10000

  • Fluorescence Maximum:

    662

Product usage:

  • The mass this product adds after conjugation and work-up (the additional mass seen by mass spectrometry) is:

    533.62

Storage and handling: