Sulfo-Cyanine5.5(analogofCy5.5®)isawater-soluble,farredemittingfluorophore.Duetofoursulfo-groups,thedyepossessesnegativechargeinneutralpH,andveryhighhydrophilicity.
Asacyaninedye,sulfo-Cyanine5.5showsverylowdependenceofthefluorescenceonpH,andveryhighextinctioncoefficient.
Generalproperties
Appearance: | darkbluesolid |
Molecularweight: | 1017.31 |
Molecularformula: | C40H39K3N2O14S4 |
Solubility: | goodinwater,DMF,DMSO |
Qualitycontrol: | NMR1H,HPLC-MS(95%) |
Storageconditions: | Storage:24monthsafterreceivalat-20°Cinthedark.Transportation:atroomtemperatureforupto3weeks.Avoidprolongedexposuretolight.Desiccate. |
Spectralproperties
Excitationmaximum,nm: | 673 |
ε,L⋅mol−1⋅cm−1: | 195000 |
Emissionmaximum,nm: | 691 |
CF260: | 0.09 |
CF280: | 0.11 |