Sulfo-cyanine3 azide potassium

• CAT Number: I040986
• Molecular Formula: C33H41KN6O7S2
• Molecular Weight: 736.94
• Purity: ≥95%
• Synonyms: potassium;(2E)-1-[6-(3-azidopropylamino)-6-oxohexyl]-3,3-dimethyl-2-[(E)-3-(1,3,3-trimethyl-5-sulfonatoindol-1-ium-2-yl)prop-2-enylidene]indole-5-sulfonate
• InChI: InChI=1S/C33H42N6O7S2.K/c1-32(2)25-21-23(47(41,42)43)14-16-27(25)38(5)29(32)11-9-12-30-33(3,4)26-22-24(48(44,45)46)15-17-28(26)39(30)20-8-6-7-13-31(40)35-18-10-19-36-37-34;/h9,11-12,14-17,21-22H,6-8,10,13,18-20H2,1-5H3,(H2-,35,40,41,42,43,44,45,46);/q;+1/p-1
• InChIKey: FJMHJDVEKDLIGG-UHFFFAOYSA-M
• SMILES: CC1(C2=C(C=CC(=C2)S(=O)(=O)[O-])[N+](=C1C=CC=C3C(C4=C(N3CCCCCC(=O)NCCCN=[N+]=[N-])C=CC(=C4)S(=O)(=O)[O-])(C)C)C)C.[K+]

Sulfo-Cyanine3 Azide Potassium(CAT: I040986) is a water-soluble, azide-functionalized fluorescent dye based on the Cyanine3 (Cy3) scaffold, optimized for click chemistry-based bioconjugation. This far-red emitting fluorophore (~550-570 nm) provides high photostability, excellent brightness, and superior solubility in aqueous environments, making it ideal for bioorthogonal labeling of biomolecules such as proteins, nucleic acids, and lipids. The potassium salt form ensures improved stability and handling. Sulfo-Cyanine3 Azide is widely used in fluorescence imaging, super-resolution microscopy, flow cytometry, and biomolecular tracking. For research use only; not for human or clinical applications.