Non-activated sulfo-Cyanine5 carboxylic acid, water soluble dye. This dye is highly hydrophilic and water-soluble. Non-sulfonated analog is available._x000D_
_x000D_
The fluorophore is an equivalent of Cy5 carboxylic acid.
Appearance: Dark blue solid
ex/em: 649/672 nm (PBS buffer)
Extinction coefficient (ε): 271000 Lmol1cm1
Quantum yield (Φ): 0.28
Sulfo-Cy5 carboxylic acid potassium is a water-soluble, inactive Cy5 carboxylic acid.
[1] Ji W, et al.Erythrocytes as Carriers of Immunoglobulin-Based Therapeutics. Acta Biomaterialia, 2020, 101, 422-435.