Cy3 Methyltetrazine
Abs/Em Maxima: 553/569 nm
Extinction Coefficient: 150,000
Flow Cytometry Laser Line: 532 or 555 nm
Microscopy Laser Line: 532 or 555 nm
Spectrally Similar Dyes: Alexa Fluor® 555, Atto™ 555, CF™ 555 Dye, DyLight™549
Methyltetrazine-activated Cy3 probe that reacts with TCO-containing compounds via an Inverse-Electron-Demand Diels-Alder reaction to form a stable covalent bond and does not require Cu-catalyst or elevated temperatures. The inverse-electron demand Diels-Alder cycloaddition reaction of TCO with tetrazines is a bioorthogonal reaction that possesses exceptional kinetics (k > 800 M-1 -1) and selectivity. Such excellent reaction rate constants are unparalleled by any other bioorthogonal reaction pair described to date. described to date.
Cy®3 is a bright, water-soluble, and pH insensitive orange-fluorescent dye that can be excited using the 532 nm or 555 nm laser line and visualized with TRITC (tetramethylrhodamine) filter sets. Cy3 conjugates give less background than TAMRA and most other commonly used fluorescent dyes.
1. Marquard, A.N., et al. (2020). Expanding the Scope of Antibody Rebridging with New Pyridazinedione-TCO Constructs. Bioconjug Chem., 31(6), 1616-23. [PubMed]
Abs/Em Maxima: 346/445 nmExtinction Coefficient: 19,000Spectrally Similar Dyes: Alexa Fluor® 350, CF® 350, DyLight 350, AMCAAZDye™ 350 is a blue-fluorescent azide-activated probe that reacts with terminal alkynes via a copper-catalyzed click react…
Abs/Em Maxima: 402/424 nmExtinction Coefficient: 35,000Flow Cytometry Laser Line: 405 nmMicroscopy Laser Line: 405 nmSpectrally Similar Dyes: Alexa Fluor® 405, CF® 405, Cascade Blue®, DyLight® 405AZDye™ 405 Azide is a water-soluble, pH-insensiti…
Abs/Em Maxima: 346/445 nmExtinction Coefficient: 19,000Spectrally Similar Dyes: Alexa Fluor® 350, CF® 350, DyLight 350, AMCAAZDye™ 350 Alkyne (Alexa Fluor® 350 Alkyne equivalent) is a blue-fluorescent, alkyne-activated probe that reacts with azid…
Abs/Em Maxima: 430/537 nmExtinction Coefficient: 15,000Spectrally Similar Dyes: Alexa Fluor® 430, CF® 430AZDye™ 430 Azide is a water-soluble, green-fluorescent azide-activated probe that reacts with terminal alkynes via a copper-catalyzed click re…
Abs/Em Maxima: 346/445 nmExtinction Coefficient: 19,000Spectrally Similar Dyes: Alexa Fluor® 350, CF® 350, DyLight 350, AMCAAZDye™ 350 DBCO reacts with azides via a copper-free “click chemistry” reaction to form a stable triazole and does not re…
Abs/Em Maxima: 402/424 nmExtinction Coefficient: 35,000Flow Cytometry Laser Line: 405 nmMicroscopy Laser Line: 405 nmSpectrally Similar Dyes: Alexa Fluor® 405, CF® 405, Cascade Blue®, DyLight® 405AZDye™ 405 Alkyne reacts with azides via a copper…
Abs/Em Maxima: 494/517 nmExtinction Coefficient: 73.000Flow Cytometry Laser Line: 488 nmMicroscopy Laser Line: 488 nmSpectrally Similar Dyes: Fluorescein, Alexa Fluor® 488, CF® 488A, DyLight® 488, Atto™ 488AZDye™ 488 Azide (Alexa Fluor® 488 Azi…
Abs/Em Maxima: 402/424 nmExtinction Coefficient: 35,000Flow Cytometry Laser Line: 405 nmMicroscopy Laser Line: 405 nmSpectrally Similar Dyes: Alexa Fluor® 405, CF® 405, Cascade Blue®, DyLight® 405ZDye™ 405 DBCO reacts with azides via a copper-fr…
