Awatersolubledyewithaminogroup,usefulfortheconjugationwithelectrophiles,andforenzymatictransaminationlabeling.
Sulfo-Cyanine3isasulfonatedanalogofCy3®,whichiscompatIBLewithvariousfluorescencemeasuringequipment.Thedyeishighlyphotostable.Itisalsoeasilydetectablebynakedeye.
Generalproperties
| Appearance: | darkredsolid | 
| Molecularweight: | 714.94 | 
| Molecularformula: | C36H50N4O7S2 | 
| Solubility: | goodinwater,alcohols,DMSO,DMF | 
| Qualitycontrol: | NMR1H,HPLC-MS(95%) | 
| Storageconditions: | Storage:24monthsafterreceivalat-20°Cinthedark.Transportation:atroomtemperatureforupto3weeks.Avoidprolongedexposuretolight.Desiccate. | 
Spectralproperties
| Excitationmaximum,nm: | 548 | 
| ε,L⋅mol−1⋅cm−1: | 162000 | 
| Emissionmaximum,nm: | 563 | 
| Fluorescencequantumyield: | 0.1 | 
| CF260: | 0.03 | 
| CF280: | 0.06 |