For research use only. Not for therapeutic Use.
Janelia Fluor® 646 TFA（Cat No.:I045770）is a far-red fluorescent dye provided as a trifluoroacetate (TFA) salt for improved stability and handling in research applications. With excitation and emission maxima around 646/664 nm, it delivers high brightness, excellent photostability, and low background, making it ideal for advanced fluorescence imaging. Its far-red spectrum minimizes cellular autofluorescence and enables multiplexed detection with other probes. Janelia Fluor® 646 TFA is widely used in confocal microscopy, flow cytometry, and live-cell imaging, supporting precise visualization of proteins, organelles, and molecular interactions in complex biological systems.
| Synonyms | 3-[3-(azetidin-1-ium-1-ylidene)-7-(azetidin-1-yl)-5,5-dimethylbenzo[b][1]benzosilin-10-yl]-4-carboxybenzoate;2,2,2-trifluoroacetic acid |
| Molecular Formula | C31H29F3N2O6Si |
| Purity | ≥95% |
| IUPAC Name | 3-[3-(azetidin-1-ium-1-ylidene)-7-(azetidin-1-yl)-5,5-dimethylbenzo[b][1]benzosilin-10-yl]-4-carboxybenzoate;2,2,2-trifluoroacetic acid |
| InChI | InChI=1S/C29H28N2O4Si.C2HF3O2/c1-36(2)25-16-19(30-11-3-12-30)6-9-22(25)27(23-10-7-20(17-26(23)36)31-13-4-14-31)24-15-18(28(32)33)5-8-21(24)29(34)35;3-2(4,5)1(6)7/h5-10,15-17H,3-4,11-14H2,1-2H3,(H-,32,33,34,35);(H,6,7) |
| InChIKey | NVBSDKPJAFIPEW-UHFFFAOYSA-N |
| SMILES | C[Si]1(C2=CC(=[N+]3CCC3)C=CC2=C(C4=C1C=C(C=C4)N5CCC5)C6=C(C=CC(=C6)C(=O)[O-])C(=O)O)C.C(=O)(C(F)(F)F)O |
| Chemistry Calculators | Dilution Calculator In vivo Formulation Calculator Molarity Calculator Molecular Weight Calculator Reconstitution Calculator |
