Cyanine5.5isafarredemittingdyeforinvivoimagingandapplicationsrequiringlowbackground.ThisCyanine5.5derivativecontainstetrazinemoietythatreactswithtrans-cyclooctenes,cyclopropenes,andsomestrainedcyclooctyneswiththeformationofstableconjugates.
Thislabelingreactionisextremelyfast,andcanbeusedinvivo.
Generalproperties
| Appearance: | darkbluesolid | 
| MassspecM+increment: | 737.4 | 
| Molecularweight: | 911.96 | 
| Molecularformula: | C50H52N7F6OP | 
| Solubility: | goodinDCM,DMF,DMSO | 
| Qualitycontrol: | NMR1H,HPLC-MS(95%) | 
| Storageconditions: | Storage:24monthsafterreceivalat-20°Cinthedark.Transportation:atroomtemperatureforupto3weeks.Avoidprolongedexposuretolight.Desiccate. | 
Spectralproperties
| Excitationmaximum,nm: | 684 | 
| ε,L⋅mol−1⋅cm−1: | 209000 | 
| Emissionmaximum,nm: | 710 | 
| Fluorescencequantumyield: | 0.2 | 
| CF260: | 0.07 | 
| CF280: | 0.03 |