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The 5-JOET modification incorporates a fluorescent 6-carboxy-4',5'-dichloro-2',7'-dimethoxyfluorescein (JOE) moiety at the 5' terminus of an oligonucleotide. This 5’ JOE modification is conjugated to a modified thymidine which may participate in hybridization. 5' JOE modified oligonucleotides can be used in a wide array of applications, including dual-labeled fluorogenic probes for real-time PCR. JOE is a xanthene dye and this product is prepared using the 6-carboxy isomer. JOE fluoresces in the yellow region of the visible spectrum and can be effectively quenched by BHQ®-1 dye.

Properties:

  • Chemical Name:

    T(JOE)

  • Formula:

    C41H39Cl2N4O17P

  • Molecular Weight:

    961.65

  • Absorption Maximum (Lambda Max):

    529

  • Extinction Coefficient at Lambda max:

    69000

  • Extinction Coefficient at 260 nm:

    39400

  • Fluorescence Maximum:

    555

Product usage:

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

    945.64

Storage and handling: