Because qFlamma® Blue Sulfo-NHS ester developed by advanced manufacturing technology of BioActs has a wide range of quench that is 500 ~ 650 nm, It can combine with any fluorescent dyes in Dual labeled probe. In any combination with (in dual labeled probe (Dual labeled probe) it can emit its features. Dual labeled probe is a combination of Fluorescent dye and Quencher based on the principle of Fluorescence resonance energy transfer (FRET). In general, it is labeled on nucleic acid, peptide or nanoparticles and utilized in areas such as qPCR, measurement of enzyme activity. As qFlamma® Blue Sulfo-NHS ester that features high water solubility reacts rapidly and high specifically to primary amine (-NH2), it can label peptide containing amine (-NH2) and Amine-modified Oligonucleotide in short time period, and spacer option such as PEGylation provides a wide range of utilization area. Excitation (nm): 590 nm.