CY2-SE (Cyanine2 Succinimidyl Ester) is a dye for the labeling of amino-groups in oligonucleotides, peptides, and proteins (Excitation:492 nm, Emission: 510 nm).

BODIPY FL-X,SE, a green fluorescent dye designed for amine labeling, exhibits a high fluorescence quantum yield with minimal sensitivity to pH variations. It serves as a viable alternative to FAM, Cy2, or FITC. The dye's absorption and emission wavelengths are 504 nm (λ abs) and 510 nm (λ em), respectively.