Tetrazine-cyclooctene(TCO)ligationisoneofthefastestbioconjugationreactionsknowntodate.Inordertouseitforfluorescentlabeling,afluorescentreportermoleculebearingoneofthereactinggroupsisnecessary.
Cyanine5tetrazineisamoleculebearingCyanine5fluorophore,andtetrazinemoiety.Cyanine5isaverypopularfluorophorecompatIBLewithnumerousinstruments.
Generalproperties
Appearance: | darkbluesolid |
MassspecM+increment: | 637.4 |
Molecularweight: | 811.84 |
Molecularformula: | C42H48N7F6OP |
Solubility: | goodinDMF,DMSO,DCM |
Qualitycontrol: | NMR1H,HPLC-MS(95%) |
Storageconditions: | Storage:24monthsafterreceivalat-20°Cinthedark.Transportation:atroomtemperatureforupto3weeks.Avoidprolongedexposuretolight.Desiccate. |
Spectralproperties
Excitationmaximum,nm: | 646 |
ε,L⋅mol−1⋅cm−1: | 250000 |
Emissionmaximum,nm: | 662 |
Fluorescencequantumyield: | 0.2 |
CF260: | 0.03 |
CF280: | 0.04 |