Cyanine5azidelabelingreagentforClickchemistry,availableas10mMsolutioninDMSO,andinsolidform.
Thisazideissolubleinorganicsolvents(e.g.DMSO,DMF),thereforethelabelingreactionshouldbecarriedoutwithasmallamountofanorganicco-solvent.Thisazidecanbeusedforthelabelingofalkyne-modifiedbiomoleculesinmixturesofwaterwithorganicsolvents.ThesolutioninDMSOisreadyforuseinbioconjugation.Awater-solublesulfonatedversionofthisreagentisalsoavailable.
Cyanine5isananalogofCy5®,oneofthemostcommonlyusedfluorophoreswhichiscompatIBLewithvariousinstruments.Cyanine5canalsobeusedasareplacementforAlexaFluor®647,andDyLight®649.
Generalproperties
Appearance: | darkbluepowder/solution |
Molecularweight: | 601.22 |
Molecularformula: | C35H45ClN6O |
Solubility: | solubleinorganicsolvents(DMSO,DMF,dichloromethane),lowsolubilityinwater |
Qualitycontrol: | NMR1H,HPLC-MS(95%) |
Storageconditions: | Storage:24monthsafterreceivalat-20°Cinthedark.Transportation:atroomtemperatureforupto3weeks.Avoidprolongedexposuretolight.Desiccate. |
Spectralproperties
Excitationmaximum,nm: | 646 |
ε,L⋅mol−1⋅cm−1: | 250000 |
Emissionmaximum,nm: | 662 |
Fluorescencequantumyield: | 0.2 |
CF260: | 0.03 |
CF280: | 0.04 |