your guide in qPCR

Quencher

Absorption Maximum
(nm)

Deep Dark Quencher I ^A

430

Dabcyl

475

Black Hole Quencher 0 ^B

485

Eclipse ^C

530

Iowa Black FQ ^D

532

Black Hole Quencher 1 ^B

534

QSY-7 ^E

571

Black Hole Quencher 2 ^B

580

Deep Dark Quencher II ^A

630

Iowa Black RQ ^C

645

Blackberry Quencher 650 ^F

650

QSY-21 ^E

660

Black Hole Quencher 3 ^B

670

A) Deep Dark Quenchers are available from Eurogentec

B) Black Hole quenchers are available from Biosearch Technologies

C) Eclipse quenchers are available from Epoch Biosciences

D) Iowa quenchers are available from Integrated DNA Technologies

E) QSY quenchers are available from Invitrogen

F) Blackberry Quencher 650 is available from Berry and Associates