BBQ-650®-dT-CE Phosphoramidite



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We are happy to offer several products containing the BlackBerry. Quencher (BBQ-650.), which exhibits a broad absorption profile from 550nm to 750nm, centered at 650nm. This range offers more effective quenching of some of our popular long wavelength dyes like TAMRA, Redmond Red, Cy dyes and DyLight dyes. We offer BBQ-650 products for the 3' and 5' termini, as well as BBQ-650-dT for inclusion within the oligonucleotide sequence, with the following properties:

  • Quenches the fluorescence of long wavelength dyes
  • Quenches in FRET and contact mode
  • Absorbance maximum at ~650nm
  • Quenching range - 550-750nm
  • Compatible with standard oligo synthesis chemistry
  • Compatible with regular deprotection but requires mild deprotection with AMA at room temperature
  • Available for 3', 5', and internal substitution
  • More stable than BHQ-3



  • Coupling: A coupling time of 15 minutes is recommended.
  • Deprotection: Complete the deprotection using the protocol required by the nucleobases. Compatible with standard deprotection conditions in Ammonium Hydroxide and room temperature AMA (Ammonium hydroxide/40% Methylamine 1:1 v/v) for 2 hours.
Diluent Anhydrous Acetonitrile/Dichloromethane 1:3 (v/v)
Storage Freezer storage, -10 to -30°C, dry. Light sensitive material.
Stability 1-2 days

Intellectual Property

BlackBerry® Quencher technology: US Patent 7,879,986. The purchase of BlackBerry® Quencher reagents includes a limited license to use these reagents exclusively for research and development purposes. They may not be used for clinical or diagnostic purposes and they may not be re-sold, distributed, or re-packaged without prior agreement and consent of Berry & Associates, Inc. Subsequent sale of products that are derived from BlackBerry® Quencher reagents is permitted so long as the following written disclaimer is included in written and electronic catalogs, in commercial advertisement, and in packages with containers of such derivative products: "BlackBerry is a trademark of Berry & Associates, Inc. Products derived from BlackBerry® Quencher reagents are sold exclusively for research and development use by the purchaser. They may not be used for clinical or diagnostic purposes without prior agreement and consent of Berry & Associates, Inc."

Dilution/Coupling Data

The table below show pack size data and, for solutions, dilution and approximate coupling based on normal priming procedures.

ABI 392/394

Catalog # Pack Size Grams/Pack 0.1M Dil. (mL) Approximate Number of Additions
LV40 LV200 40nm 0.2μm 1μm 10μm
10-5944-02 0.25 g .25grams 1.73 44.33 26.6 16.63 12.09 8.87 2.22
10-5944-90 100 µmol .144grams 1 20 12 7.5 5.45 4 1
10-5944-95 50 µmol .072grams 0.5 3.33 2 1.25 0.91 0.67 0.17


Catalog # Pack Size Grams/Pack Dilution (mL) Approximate Number of Additions
Molarity 50nm 0.2μm 1μm 15μm
10-5944-02 0.25 g .25grams 2.59 0.07 45.4 28.38 20.64 2.84
10-5944-90 100 µmol .144grams 1.5 0.07 23.6 14.75 10.73 1.48
10-5944-95 50 µmol .072grams 0.75 0.07 8.6 5.38 3.91 0.54

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