Molecular formula: C44H46N3BF4O4, Molecular weight: 767.66, Appearance: dark blue solid, Solubility: soluble in organic solvents (DMSO, DMF, dichloromethane), practically insoluble in water (< 1 uM, < 1 mg/L); Near infrared cyanine dye which is ideal for bioimaging applications. Amine-reactive dye for the labeling of peptides and amino-oligonucleotides. For the labeling of sensitive proteins, use water-soluble sulfo-Cyanine5 NHS ester.