Farred/nearinfrareddyealkyneforClickchemistrylabeling.Cyanine5.5isananalogofCy5.5®,apopularfluorophorewhichhasbeenwidelyusedforvariousapplicationsincludingintactorganismimaging.ThisreagentcanbeconjugatedwithazidogroupsundermildcoppercatalyzedClickChemistryconditions.
Thisreagentissolubleinorganicsolvents,butmixturesofwaterwithsmallpercentofDMSOcanbeusedforefficientconjugation.Cyanine5.5alkynecanalsobeusedforthelabelingofsmallmoleculeswiththisfarred/NIRdye.
Generalproperties
Appearance: | darkbluepowder |
Molecularweight: | 656.30 |
Molecularformula: | C43H46ClN3O |
Solubility: | goodinorganicsolvents(DMF,DMSO,acetonitrile,DCM,alcohols),lowinwater |
Qualitycontrol: | NMR1H,HPLC-MS(95%) |
Storageconditions: | Storage:24monthsafterreceivalat-20°Cinthedark.Transportation:atroomtemperatureforupto3weeks.Avoidprolongedexposuretolight. |
Spectralproperties
Excitationmaximum,nm: | 684 |
ε,L⋅mol−1⋅cm−1: | 209000 |
Emissionmaximum,nm: | 710 |
Fluorescencequantumyield: | 0.2 |
CF260: | 0.07 |
CF280: | 0.03 |