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 |