Cyanine3B dye azide, with the CAS number 1914113-85-1, is utilized for conjugation with terminal alkynes through a copper-aided click reaction, or strained cyclooctynes through a copper-free click reaction in click chemistry.
Cyanine3B is a type of cyanine dye that emits yellow light, and it is an enhanced version of the Cyanine3 fluorophore. This improved version offers a substantially higher fluorescence quantum yield and improved photostability. Owing to its fixed conformation, Cyanine3B showcases the highest emission quantum yield when compared to other dyes emitting the same wavelength light.
It’s noteworthy that this is a non-sulfonated dye, which necessitates an organic co-solvent like DMF, DMSO, or similar for efficient labeling in water.
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