| | Identification | Back Directory |  | [Name] 
 1H-Benz[e]indolium, 2-[5-[3-[6-[(3-azidopropyl)amino]-6-oxohexyl]-1,3-dihydro-1,1-dimethyl-2H-benz[e]indol-2-ylidene]-1,3-pentadien-1-yl]-1,1,3-trimethyl-, chloride (1:1)
 |  | [CAS] 
 1557136-25-0
 |  | [Synonyms] 
 1H-Benz[e]indolium, 2-[5-[3-[6-[(3-azidopropyl)amino]-6-oxohexyl]-1,3-dihydro-1,1-dimethyl-2H-benz[e]indol-2-ylidene]-1,3-pentadien-1-yl]-1,1,3-trimethyl-, chloride (1:1)
 |  | [Molecular Formula] 
 C43H49ClN6O
 |  | [MOL File] 
 1557136-25-0.mol
 |  | [Molecular Weight] 
 701.36
 | 
 | Chemical Properties | Back Directory |  | [solubility ] 
 Soluble in DMSO, DMF, DCM
 |  | [form ] 
 Solid
 |  | [color ] 
 Pink to red
 |  | [Appearance] 
 Dark blue solid
 |  | [ex/em] 
 680/698 nm (PBS buffer)
 |  | [ε(extinction coefficient)] 
 198000 L⋅mol−1⋅cm−1
 |  | [Φ(quantum yield)] 
 0.20
 | 
 | Hazard Information | Back Directory |  | [Description] 
 Cy5.5 azide is a functionalized cyanine dye containing an azide group which can react with alkynes for copper-catalyzed Click Chemistry. Cyanine5.5 is a far-red dye working great for live organism imaging and applications requiring low fluorescence background.
 |  | [Chemical Properties] 
 Appearance: Dark blue solid
 ex/em: 680/698 nm (PBS buffer)
 Extinction coefficient (ε): 198000 L??mol??1??cm??1
 Quantum yield (Φ): 0.20
 |  | [Uses] 
 Cyanine 5.5 azide (CY 5.5 azide) is a potent fluorescent dye. Cyanine 5.5 azide can label DNA. Cyanine 5.5 azide can be used for NIR live organism imaging. (λex=684 nm, λem=710 nm)[1][2]. Cyanine 5.5 azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.
 |  | [References] 
 [1] Sun H, et, al. Zwitterionic Cross-Linked Biodegradable Nanocapsules for Cancer Imaging. Langmuir. 2019 Feb 5;35(5):1440-1449. DOI:10.1021/acs.langmuir.8b01633
 [2] Damaj MI, et, al. In vivo characterization of a novel inhibitor of CNS nicotinic receptors. Eur J Pharmacol. 2005 Oct 3;521(1-3):43-8. DOI:10.1016/j.ejphar.2005.06.056
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