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Janelia Fluor 669, SE (JF669, SE), a red fluorescent dye, reacts directly with thiol-containing HaloTag ligand under mild conditions (DIEA, DMF) to produce a JF669 HaloTag ligand in a single step (Ex = 669 nm; Em = 682 nm).

| Pack Size | Price | USA Warehouse | Global Warehouse | Quantity |
|---|---|---|---|---|
| 2 mg | $1,620 | 35 days | 35 days |
| Description | Janelia Fluor 669, SE (JF669, SE), a red fluorescent dye, reacts directly with thiol-containing HaloTag ligand under mild conditions (DIEA, DMF) to produce a JF669 HaloTag ligand in a single step (Ex = 669 nm; Em = 682 nm). |
| In vitro | JF669 rapidly transforms into a thioether product in less than 5 minutes to completion when in organic solvents, primarily assuming the closed form[1]. Additionally, JF669 exhibits superior photostability, maintaining 97% of its fluorescence intensity after an equivalent number of cycles[1]. |
| Synonyms | JF669,NHS, JF669, SE, Janelia Fluor? 669, SE |
| Molecular Weight | 693.77 |
| Formula | C34H30F3N3O6SSi |
| Cas No. | 2127150-20-1 |
| Smiles | [#6][Si]1([#6])[#6]-2=[#6]\[#6](-[#6]=[#6]-[#6]-2=[#6](-c2ccc(cc12)-[#7]-1-[#6]-[#6]-[#6]-1)-c1c(F)c(-[#16]-[#6]-[#6](=O)-[#8]-[#7]-2-[#6](=O)-[#6]-[#6]-[#6]-2=O)c(F)c(F)c1-[#6](-[#8-])=O)=[#7+]-1/[#6]-[#6]-[#6]-1 |c:6,9,t:3| |
| Relative Density. | no data available |
| Storage | keep away from direct sunlight | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature. |
Dissolve 2 mg of the compound in 100 μL DMSO
to obtain a stock solution at a concentration of 20 mg/mL . If the required concentration exceeds the compound's known solubility, please contact us for technical support before proceeding.
1) Add 100 μL of the DMSO
stock solution to 400 μL PEG300
and mix thoroughly until the solution becomes clear.
2) Add 50 μL Tween 80 and mix well until fully clarified.
3) Add 450 μL Saline,PBS or ddH2O
and mix thoroughly until a homogeneous solution is obtained.
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