Cyanine5.5NHSesterisareactivedyeforthelabelingofamino-groupsinpeptides,proteins,andoligonucleotides,ananalogofCy5.5®NHSester.
Cy5.5isafar-red(andnear-infrared)emittingdyewhichisidealforfluorescencemeasurementswherebackgroundfluorescenceisaconcern.ItisalsosuitableforinvivoNIRimagingexperiments.
ThisreagentcanreplaceNHSestersofCy5.5®,AlexaFluor680,andDyLight680.
Generalproperties
| Appearance: | darkbluepowder |
| Molecularweight: | 716.31 |
| Molecularformula: | C44H46ClN3O4 |
| Solubility: | solubleinorganicsolvents(DMSO,DMF,dichloromethane),lowsolubilityinwater |
| Qualitycontrol: | NMR1H,HPLC-MS(95%) |
| Storageconditions: | Storage:12monthsafterreceivalat-20°Cinthedark.Transportation:atroomtemperatureforupto3weeks.Avoidprolongedexposuretolight.Desiccate. |
Spectralproperties
| Excitationmaximum,nm: | 684 |
| ε,L⋅mol−1⋅cm−1: | 209000 |
| Emissionmaximum,nm: | 710 |
| Fluorescencequantumyield: | 0.2 |
| CF260: | 0.07 |
| CF280: | 0.03 |