BHQ®-2
BHQ®-2 stands for Black Hole Quencher 2 and it consists of a dark quencher, often used in dual-labelled probes. As dark quenchers, Black Hole Quenchers absorb energy without emitting fluorescence. They are in fact non-fluorescent chromophores.

Metabion offers BHQ®-2 in its DNA and RNA dual-labelled probes portfolio. Click here
BHQ®-2 as 5' modification |
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MW as 5' |
539 g/mol |
Absorption range |
550-650 nm |
Absorption maximum |
579 nm |
Extinction coefficient (260nm) |
8 mM-1cm-1 |
BHQ®-2 as 3' modification |
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MW |
554 g/mol |
Absorption range |
550-650 nm |
Absorption maximum |
579 nm |
Extinction coefficient (260nm) |
8 mM-1cm-1 |
BHQ®-2 as an internal modification |
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MW |
962 g/mol |
Absorption range |
550-650 nm |
Absorption maximum |
579 nm |
Extinction coefficient (260nm) |
16.4 mM-1cm-1 |
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