IRDye® QC-1 NHS Ester

IRDye QC-1 is the first non-fluorescent (dark) quencher compatible with a wide range of visible and near-infrared fluorophores (500-800 nm). It has the widest available quenching range, so you do not need to carefully match the donors fluorescence spectrum with the acceptors absorbance. IRDye QC-1 quenches common fluorophores with more than 97% efficiency1.

msds of IRDye® QC-1 NHS Ester