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:
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Chemical Name:
BHQ®-3
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Formula:
C32H34N6O2
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Molecular Weight:
534.65
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Absorption Maximum (Lambda Max):
672
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Extinction Coefficient at Lambda max:
42700
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Extinction Coefficient at 260 nm:
13000
Product usage:
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The mass this product adds after conjugation and work-up (the additional mass seen by mass spectrometry) is:
597.62