BHQ-2 Phosphoramidite

4'-(4-Nitro-phenyldiazo)-2'-methoxy-5'-methoxy-azobenzene-4''-(N-2-4,4'-dimethoxytrityl(oxyethyl))-N-ethyl-2-cyanoethyl-(N,N-diisopropyl)-phosphoramidite

Product Specifications

Formula:
C54H61N8O9P
M.W.:
997.10
F.W.:
556.47
CAS Number:
374591-98-7
To Retrieve a Catalog Number, Select a Pack Size and Format:

Description

Black Hole Quencher-2 (BHQ-2) Phosphoramidite dye is a non-nucleoside version that has O-4,4'-dimethoxytrityl “O-DMT”, which will allow the incorporation of this modification internally or at the 3' end of the oligonucleotide by using one of our universal supports without using the 3' CPG version. The structure of the BHQ-2 Phosphoramidite consists of a polyaromatic-azo backbone (Ph-N=N-Ph). This allows it to absorb a broad range of wavelengths in the visible spectrum, resulting in the absorption of many colors.

Details

Usage

  • Coupling: No changes needed from standard method recommended by synthesizer manufacturer
  • Deprotection: Complete the deprotection using the protocol required by the nucleobases. Note, the use of methylamine in ultrafast deprotection protocols will result in degradation to the dye and is not recommended.
Specifications
Diluent Anhydrous Acetonitrile
Storage Freezer storage, -10 to -30°C, dry
Stability 1-2 Days

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
10-1962-95 50 µmol 0.05 0.5 3.33 2 1.25 0.91 0.67 0.17
10-1962-90 100 µmol 0.1 1 20 12 7.5 5.45 4 1
10-1962-02 0.25 g 0.25 2.51 70.33 42.2 26.38 19.18 14.07 3.52

Expedite

Catalog # Pack Size Grams/Pack Dilution (mL) Approximate Number of Additions
Molarity 50nm 0.2μm 1μm 15μm
10-1962-95E 50 µmol 0.05 0.75 0.07 8.6 5.38 3.91 0.54
10-1962-90E 100 µmol 0.1 1.5 0.07 23.6 14.75 10.73 1.48
10-1962-02E 0.25 g 0.25 3.74 0.07 68.4 42.75 31.09 4.28