AF647-ZOL has been shown inactive in these studies. This kit is ideal for studies that require imaging probes with and without pharmacological activity.n nSpectroscopic properties of 5-FAM-ZOL:nMaximum absorption wavelength (λmax (abs)): 493 nmnMaximum emission wavelength (λmax (em)): 521 nmnExtinction coefficient (M-1cm-1): 73,000 (0.1 M phosphate buffer, pH 7.2)n nSpectroscopic properties of AF647-ZOL:nMaximum absorption wavelength (λmax (abs)): 648 nmnMaximum emission wavelength (λmax (em)): 666 nmnExtinction coefficient (M-1cm-1): 240,000 (0.1 M phosphate buffer, pH 7.0)