Cyanine7.5isaNIRdyewithlong-waveinfraredfluorescence.ThisderivativeisazideforClickchemistry.
CanbeusedfortheconstructionofvariouslabeledbiomoleculescontainingCyanine7.5,nearinfraredfluorescentdye,andanimprovedanalogofCy7.5®.TheseconjugatescantakeadvantageofNIRtissuetransparencywhenusedforinvivoimaging.Thisfluorophoreisalsousefulforotherfluorescentapplications,especiallyrequiringlowfluorescentbackground.
AzideisavailableasDMSOsolution,readyforgeneralClickChemistrylabelingprotocol,orinsolidformforcustomlabelingapplications.
Structurefeaturesrigidbridgedpolymethynechaintoincreasequantumyieldby20%,allowingforbrightersignal.
Generalproperties
| Appearance: | greenpowder/solution | 
| Molecularweight: | 767.44 | 
| Molecularformula: | C48H55ClN6O | 
| Solubility: | solubleinorganicsolvents(DMSO,DMF,dichloromethane),lowsolubilityinwater | 
| Qualitycontrol: | NMR1H,HPLC-MS(95%) | 
| Storageconditions: | Storage:24monthsafterreceivalat-20°Cinthedark.Transportation:atroomtemperatureforupto3weeks.Avoidprolongedexposuretolight.Desiccate. | 
Spectralproperties
| Excitationmaximum,nm: | 788 | 
| ε,L⋅mol−1⋅cm−1: | 223000 | 
| Emissionmaximum,nm: | 808 |