FreeCyanine3carboxylicacid(Cy3®carboxylicacidanalog),non-activateddye.Non-sulfonatedreagent,withgoodsolubilityinorganicsolvents,andlimitedaquoussolubility.Thedyecanbeusedasanon-reactivefluorophore,forcontrolexperiments,andforcalibration.
Forcouplingwithamines,andlabeling,considerusingCyanine3NHSester,orwater-solublesulfo-Cyanine3NHSester.
Generalproperties
| Appearance: | redpowder | 
| Molecularweight: | 493.08 | 
| CASnumber: | 1144107-76-5,1361402-15-4,1251915-29-3[I-] | 
| Molecularformula: | C30H37ClN2O2 | 
| Solubility: | solubleinorganicsolvents(DMF,DMSO,dichloromethane),insolubleinwater | 
| Qualitycontrol: | NMR1H,HPLC-MS(95%) | 
| Storageconditions: | Storage:24monthsafterreceivalat-20°Cinthedark.Transportation:atroomtemperatureforupto3weeks.Avoidprolongedexposuretolight.Desiccate. | 
Spectralproperties
| Excitationmaximum,nm: | 555 | 
| ε,L⋅mol−1⋅cm−1: | 150000 | 
| Emissionmaximum,nm: | 570 | 
| Fluorescencequantumyield: | 0.31 | 
| CF260: | 0.04 | 
| CF280: | 0.09 |