anti-Actin, alpha 2, Smooth Muscle, Aorta (ACTA2) (N-Term) antibody (HiLyte Fluor 647): Near-infrared fluorescence. Excitation/Emission wavelength= 653 nm/ 671 nm. The fluorescence of HiLyte Fluor(TM) 647 is brighter and more resistant to photobleaching compared to other red fluorophores, such as Cy5.