AF 568 carboxylic acid

Cat. # Quantity Price Lead time
15890 1 mg $125 in stock
25890 5 mg $325 in stock
45890 25 mg $950 in stock
55890 50 mg $1625 in stock
65890 100 mg $2090 in stock
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AF 568 is a fluorescent dye with excitation maximum at 572 nm and emission maximum at 598 nm. This dye has better photostability than traditional fluorescent stains (fluorescein isothiocyanate FITC, phycoerythrin PE etc.).

AF 568 carboxylic acid is a non-reactive form of AF 568 dye that can be used as a reference standard in experiments involving AF 568 dye conjugates. Besides, the carboxylic group can react with hydrazines, hydroxylamines, and amines using carbodiimides such as EDAC.

Absorption and emission spectra of AF 568

Absorption and emission spectra of AF 568

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General properties

Appearance: violet solid
Molecular weight: 770.91
Molecular formula: C33H28N2K2O11S2
Solubility: good in water, DMF, DMSO
Quality control: NMR 1H, HPLC-MS (95%)
Storage conditions: Storage: 24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Avoid prolonged exposure to light. Desiccate.
MSDS: Download
Product specifications

Spectral properties

Excitation/absorption maximum, nm: 572
ε, L⋅mol−1⋅cm−1: 94238
Emission maximum, nm: 598
Fluorescence quantum yield: 0.912
CF260: 0.4
CF280: 0.32
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