IRDye® 680LT Infrared Dyes

Manufacturer LI-COR Biosciences  |  Available Worldwide

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IRDye 680LT dye is highly soluble in water and is significantly brighter and more photostable than many other 700 nm near-infrared dyes. The spectral characteristics of IRDye 680LT are well suited for use on LI-COR imaging instruments with absorbance and emission maxima in aqueous solution and methanol of 676 and 693 nm, respectively.



  • Spectrally matched to LI-COR® imaging systems
  • Optimized for protein detection applications, including Quantitative Westerns and In-Cell Western™ assays (may require optimization for best signal)
  • As bright as Alexa Fluor® 680 Excellent photostability for fluorescence microscopy
  • Low background at near-infrared wavelengths enables higher signal-to-noise ratios