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The 3-BHQ3 modification adds a non-fluorescent Black Hole Quencher®-3 (BHQ®-3) dye to the 3’ end of an oligonucleotide. 3' BHQ-3 labeled oligonucleotides are used in a wide array of applications, including dual-labeled fluorogenic probes for real-time PCR. The BHQ-3 dark quencher has strong absorption from 620 nm to 730 nm, which provides excellent quenching of fluorophores that fluoresce in this range, such as Quasar® 670 and Quasar 705 dyes.

Properties:

  • Chemical Name:

    BHQ®-3

  • Formula:

    C32H34N6O2

  • Molecular Weight:

    534.65

  • Absorption Maximum (Lambda Max):

    672

  • Extinction Coefficient at Lambda max:

    42700

  • Extinction Coefficient at 260 nm:

    13000

Product usage:

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

    597.62

Storage and handling: