The I-Q670 modification incorporates a fluorescent Quasar® 670 dye internally or at the 5’ terminus of an oligonucleotide. Quasar 670 modified oligonucleotides can be used in a wide array of applications including dual-labeled fluorogenic probes for real-time PCR. The fluorophore is conjugated to a modified thymidine which may participate in hybridization. Quasar 670 fluorophore is an indocarbocyanine dye which fluoresces in the red region of the visible spectrum and can be effectively quenched by BHQ®-2 dye. It is used as a direct replacement for the Cy™ 5 dye.
Properties:
-
Chemical Name:
T(Quasar® 670)
-
Formula:
C51H65N6O10P
-
Molecular Weight:
953.07
-
Absorption Maximum (Lambda Max):
647
-
Extinction Coefficient at Lambda max:
187000
-
Extinction Coefficient at 260 nm:
11200
-
Fluorescence Maximum:
670
Product usage:
-
The mass this product adds after conjugation and work-up (the additional mass seen by mass spectrometry) is:
938.08