Sulfo-Cyanine5.5 maleimide potassium

Sulfo-Cyanine5.5 maleimide potassium is a fluorescent dye. Sulfo-Cyanine5.5 is a near-infrared (NIR) fluorescent group with a maximum excitation wavelength of 675 nm and a maximum emission wavelength of 694 nm. Sulfo-Cyanine5.5 maleimide potassium is suitable for labeling sensitive proteins, nanoparticles, and highly hydrophilic biopolymers.

O=C1C=CC(N1CCNC(CCCCCN2C3=CC=C4C(C=C(S(=O)([O-])=O)C=C4S(=O)([O-])=O)=C3C(C2=CC=CC=CC5=[N+](C)C6=C(C5(C)C)C7=C(C(S(=O)([O-])=O)=CC(S(=O)([O-])=O)=C7)C=C6)(C)C)=O)=O.[K+].[K+].[K+]