Sulfo-Cyanine7carboxylicacidisnon-reactivewatersolublenearinfrareddye.
ThereagentisusefulasafluorescentMarkerinNIRrangewhenattachmenttoothermoleculesisnotdesired.Ithashighhydrophilicityandaqueoussolubility,improvedquantumyieldinNIRrange,andveryhighmolarextinctioncoefficient.
Thisreagentcontainsfreecarboxylicacidfunction.Pre-activatedactivatedester-sulfo-Cyanine7NHSesterisalsoavailable.
ChemDrawformat
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 |