Fluorescence Quenchers Archives

SY-7

A nonfluorescent acceptor dye with quenching range of 500-600 nm.

QSY-7

Reactivity: Primary amine

SY-7 NHS ester

SY-9

A hydrophilic version of SY-7 acceptor with quenching range of 500-600 nm.

QSY-9

Reactivity: Primary amine

SY-9 NHS ester

SY-21

A nonfluorescent acceptor with quenching range of 580-680 nm.

QSY-21

Reactivity: Primary amine

SY-21 NHS ester