AF 647 carboxylic acid
Cat. # | Quantity | Price | Lead time | Buy this product |
---|---|---|---|---|
16890 | 1 mg | $140 | in stock | |
26890 | 5 mg | $420 | in stock | |
46890 | 25 mg | $1365 | in stock | |
56890 | 50 mg | $1790 | in stock | |
66890 | 100 mg | $2640 | in stock |
AF 647 is a bright, photostable, and hydrophilic fluorophore emitting in the far-red channel (absorption max. is at 650 nm, emission max. is at 671 nm). AF 647 carboxylic acid is a water-soluble dye that can be used as a reference standard and, after activation, for synthesizing AF 647-containing biomolecules.
Absorption and emission spectra of AF 647
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Appearance: | golden blue solid |
Molecular weight: | 959.26 |
Molecular formula: | C35H41N2K3O14S4 |
IUPAC name: | 3-(4-carboxybutyl)-2-((1E,3E)-5-((E)-3,3-dimethyl-5-sulfonato-1-(3-sulfonatopropyl)indolin-2-ylidene)penta-1,3-dien-1-yl)-3-methyl-1-(3-sulfonatopropyl)-3H-indol-1-ium-5-sulfonate |
Solubility: | good in DMSO, DMF, water |
Quality control: | NMR 1H, HPLC-MS (95%) |
Storage conditions: | 12 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Avoid prolonged exposure to light. |
MSDS: | Download |
Product specifications |
Spectral properties
Excitation/absorption maximum, nm: | 655 |
ε, L⋅mol−1⋅cm−1: | 191800 |
Emission maximum, nm: | 680 |
Fluorescence quantum yield: | 0.15 |
CF260: | 0.09 |
CF280: | 0.08 |
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