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Fluorescence Quenchers

 

SY-9 NHS ester
A nonfluorescent acceptor dye with quenching range of 500-600 nm.
QSY-7

Reactivity: Primary amine

SY-7 NHS ester
SY-9 NHS ester
A hydrophilic version of SY-7 acceptor with quenching range of 500-600 nm.
QSY-9

Reactivity: Primary amine

SY-9 NHS ester
SY-9 NHS ester
A nonfluorescent acceptor with quenching range of 580-680 nm.
QSY-21

Reactivity: Primary amine

SY-21 NHS ester