Sulfo-Cyanine7carboxylicacidisnon-reactivewatersolublenearinfrareddye.
ThereagentisusefulasafluorescentMarkerinNIRrangewhenattachmenttoothermoleculesisnotdesired.Ithashighhydrophilicityandaqueoussolubility,improvedquantumyieldinNIRrange,andveryhighmolarextinctioncoefficient.
Thisreagentcontainsfreecarboxylicacidfunction.Pre-activatedactivatedester-sulfo-Cyanine7NHSesterisalsoavailable.
Generalproperties
| Appearance: | darkgreenpowder | 
| Molecularweight: | 730.87 | 
| Molecularformula: | C37H43N2NaO8S2 | 
| Solubility: | Goodinwater,DMF,DMSO.Lowinnon-polarorganicsolvents. | 
| Qualitycontrol: | NMR1H,HPLC(95%) | 
| Storageconditions: | Storage:24monthsafterreceivalat-20°Cinthedark.Transportation:atroomtemperatureforupto3weeks.Avoidprolongedexposuretolight. | 
Spectralproperties
| Excitationmaximum,nm: | 750 | 
| ε,L⋅mol−1⋅cm−1: | 240600 | 
| Emissionmaximum,nm: | 773 | 
| CF260: | 0.04 | 
| CF280: | 0.04 |