HydrazidederivativeofCyanine7,aNIRfluorescentdye,ananalogofCy7®.
Thisvarietyofheptamethinefluorophorecontainsasix-memberedringrigidizingthepolymethinechainwhichallowstoincreasequantumyieldby20%comparedtoparentstructure.
Hydrazidereactsquicklyandsmoothlywithaldehydesandketonesyieldingstablehydrazoneproducts.Thisreactionisalsogoodforthelabelingofglycoproteinsafterperiodateoxidation.
Generalproperties
Appearance: | greenpowder |
MassspecM+increment: | 544.8 |
Molecularweight: | 635.70 |
Molecularformula: | C37H48Cl2N4O |
Solubility: | moderatesolubilityinwater,goodinpolarorganicsolvents(DMF,DMSO,alcohols) |
Qualitycontrol: | NMR1H,HPLC-MS(95%) |
Storageconditions: | Storage:24monthsafterreceivalat-20°Cinthedark.Transportation:atroomtemperatureforupto3weeks.Avoidprolongedexposuretolight.Desiccate. |
Spectralproperties
Excitationmaximum,nm: | 750 |
ε,L⋅mol−1⋅cm−1: | 199000 |
Emissionmaximum,nm: | 773 |
Fluorescencequantumyield: | 0.3 |
CF260: | 0.022 |
CF280: | 0.029 |