ATT 550 NHS ester
Cat. # | Quantity | Price | Lead time | Buy this product |
---|---|---|---|---|
1C920 | 1 mg | $110 | in stock | |
2C920 | 5 mg | $640 | in stock | |
4C920 | 25 mg | $1640 | in stock | |
5C920 | 50 mg | $2090 | in stock | |
6C920 | 100 mg | $2840 | in stock |
ATT 550 NHS ester is a water-soluble amine-reactive dye for labeling various amine-containing molecules in an aqueous phase without using any organic co-solvent. This product is beneficial for the labeling of peptides and proteins that denature in the presence of organic co-solvents, as well as for proteins with low solubility.
ATT 550 is a yellow-fluorescent Rhodamine 6G and Rhodamine B-related dye with high fluorescence quantum yield, strong thermal and photostability, and excellent water solubility. ATT 550 is a cationic dye. After coupling to a substrate, the dye carries a net electrical charge of +1.
Absorption and emission spectra of ATT 550
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Appearance: | dark reddish-brown crystals |
Molecular weight: | 791.30 |
Molecular formula: | C41H47ClN4O10 |
Solubility: | good in acetonitrile, DMF, methylene chloride; moderate in ethyl acetate; poor in water; insoluble in diethyl ether |
Quality control: | NMR 1H and HPLC-MS (95+%) |
Storage conditions: | 12 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Desiccate. |
MSDS: | Download |
Product specifications |
Spectral properties
Excitation/absorption maximum, nm: | 556 |
Emission maximum, nm: | 574 |