AderivativeofCyanine5red-emittingfluorophorepossessingDBCO(dibenzocyclooctyne,alsoknownasADIBO,azodibenzocyclooctyne)groupforcopperfreeClickchemistry.
Strainedcycloalkynes,suchascyclooctynes,reactwithazidesveryrapidlyintheabsenceofcoppercatalystinastrainpromotedalkyneazidecycloaddition(spAAC).Thisreactionisveryfast,mild,andbiocompatIBLe.
Comparedtoothercycloalkynes,DBCOprovideamongthefastestreactionkinetics,stillpossessinggoodstABIlity.
Generalproperties
Appearance: | darkbluesolid |
MassspecM+increment: | 928.4 |
Molecularweight: | 929.03 |
Molecularformula: | C53H59N4F6O2P |
Solubility: | goodinDMF,DMSO,chlorinatedorganicsolvents |
Qualitycontrol: | NMR1H,HPLC-MS(95%) |
Storageconditions: | Storage:12monthsafterreceivalat-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 |