Aminooxy CF™568 (aka CF568 hydroxylamine or CF568 aminooxyacetamide) is a red fluorescent dye with an aminooxy reactive group, which can be used to label a target molecule with an aldehyde or ketone group. Aminooxy group readily reacts with an aldehyde or ketone group to form a stable linkage without the use of a reducing agent. CF™568 has an excitation spectrum optimally matching the 568 nm line of the Ar-Kr mixed-gas laser. Antibody conjugates of the dye are much brighter than those of Alexa Fluor® 568. In addition, the photostability of CF™568 is superior to that of Alexa Fluor® 568, making CF™568 a much better choice for demanding applications, such as confocal microscopy and single molecule imaging.Compatible with the NucleoCounter® NC-3000™.