2183440-68-6

Sulfo-Cyanine5.5 (analog of Cy5.5?) is a water-soluble, far red emitting fluorophore. Due to four sulfo-groups, the dye possesses negative charge in neutral pH, and very high hydrophilicity._x000D_ As a cyanine dye, sulfo-Cyanine5.5 shows very low dependence of the fluorescence on pH, and very high extinction coefficient.

Appearance: Dark blue solid
ex/em: 678/706 nm (PBS buffer)
Extinction coefficient (ε): 211000 L??mol??1??cm??1
Quantum yield (Φ): 0.21

Sulfo-Cyanine5.5 carboxylic acidCI Pigment violet 32 is a water-soluble, far-red emitting fluorophore. Due to its four sulfo groups, this dye has a negative charge at neutral pH and is very hydrophilic. As a cyanine dye, sulfo-Cyanine5.5 shows a very low dependence of fluorescence on pH and a very high extinction coefficient.

[1] Wild A.R, et al.Synapse-to-Nucleus Communication through NFAT Is Mediated by L-type Ca2+ Channel Ca2+ Spike Propagation to the Soma. Cell Reports, 2019, 26, 3537-3550.e4.

673/691 nm

0.21

211000

0.09

0.11