> Quencher
BHQ-2 (Internal modification)

Quenching range starts at [nm]
Quenching range ends at [nm]
Here, the internal modification BHQ-2 is attached via an amino-dT building block or may be inserted into the oligo sequence as a dR-BHQ-2 building block with the modification attached to the C1 position of the sugar instead of the base.