This product is prepared by labeling highly cross-adsorbed donkey anti-goat IgG (H+L) with CF660C dye. CF dyes are Biotiums line of next-generation fluorescent dyes with advantages in brightness, photostability, and conjugate specificity compared to other fluorescent dyes. Far-red fluorescent CF660C dye has excitation/emission at 667/685 nm. To minimize cross-reactivity, the antibody has been adsorbed against chicken, guinea pig, Syrian hamster, horse, human, mouse, rabbit, and rat serum.