Non-activatedsulfo-Cyanine5carboxylicacid,watersolubledye.Thisdyeishighlyhydrophilicandwater-soluble.Non-sulfonatedanalogisavailable.
ThefluorophoreisanequivalentofCy5®carboxylicacid.
Forlabelingapplicationsconsiderusingpre-activatedsulfo-Cy5NHSester
Generalproperties
| Appearance: | darkbluepowder | 
| Molecularweight: | 664.76 | 
| CASnumber: | 1121756-16-8,1144162-77-5 | 
| Molecularformula: | C32H37N2NaO8S2 | 
| Solubility: | Goodinwater,DMF,DMSO.Lowinnon-polarorganicsolvents. | 
| Qualitycontrol: | NMR1H,HPLC-MS(95%) | 
| Storageconditions: | Storage:24monthsafterreceivalat-20°Cinthedark.Transportation:atroomtemperatureforupto3weeks.Avoidprolongedexposuretolight. | 
Spectralproperties
| Excitationmaximum,nm: | 646 | 
| ε,L⋅mol−1⋅cm−1: | 271000 | 
| Emissionmaximum,nm: | 662 | 
| Fluorescencequantumyield: | 0.28 | 
| CF260: | 0.04 | 
| CF280: | 0.04 |