ATTO 610 TCO

• Ex/Em: 615/632 nm
• Extinction coefficient: 150,000 cm^-1M^-1
• Reactive group: TCO
• Rapid Conjugation: Ideal for labeling tetrazine-modified biomolecules under copper-free conditions, offering fast kinetics and high yields
• High Quantum Yield & Stability: Offers bright, stable fluorescence with excellent photostability and thermal stability for sensitive imaging applications
• Ideal for Super-Resolution Imaging: Suited for PALM, dSTORM, and STED techniques in high-resolution microscopy

ATTO 610 is a carbopyronin-based fluorescent dye known for its strong absorption, high fluorescence quantum yield, and exceptional photostability and thermal stability. It is moderately hydrophilic and optimally excited at wavelengths between 595 and 625 nm. Upon coupling to a substrate, ATTO 610 becomes cationic, carrying a net electrical charge of +1. The dye remains stable under physiological pH conditions and in buffers with a pH of up to 8, though it gradually degrades at higher pH levels. ATTO 610 is ideal for advanced applications in single-molecule detection and high-resolution microscopy techniques, including PALM, dSTORM, and STED microscopy. It is also compatible with flow cytometry (FACS), fluorescence in situ hybridization (FISH), FRET, and various other biological assays.

ATTO 610 TCO is particularly useful for labeling tetrazine-modified biomolecules under copper-free conditions. It reacts with tetrazine-functionalized molecules, forming a stable conjugate via a dihydropyrazine moiety. This click reaction is favored over others due to its extremely fast kinetics and higher yields under mild reaction conditions, making it a popular choice for researchers.