IRDye QC-1 Can Be Used to Quench a Variety of Fluorescent Dyes.

Dyes Quenched

Spectral Overlap of IRDye® QC-1 Absorption
with Common Donor Fluorophores

Normalized emission spectra for several common donor fluorophores, and the absorption spectrum of IRDye QC-1. All are quenched by IRDye QC-1 with >97% efficiency.

Figure 1. Normalized emission spectra for several common donor fluorophores, and the absorption spectrum of IRDye QC-1. All are quenched by IRDye QC-1 with >97% efficiency.
Reprinted with permission from Analytical Biochemistry 388 (2009) 220-28.


List of fluorophores and spectrally compatible quenchers (shaded box = compatible). Nearly all of these common fluorophores are spectrally compatible with IRDye QC-1. No other quencher spans this wide range or is compatible with wavelengths around 800 nm.

Figure 2. List of fluorophores and spectrally compatible quenchers (shaded box = compatible). Nearly all of these common fluorophores are spectrally compatible with IRDye QC-1. No other quencher spans this wide range or is compatible with wavelengths near 800 nm.
Reprinted with permission from Analytical Biochemistry 388 (2009) 220-28.


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