AF488 alkyne, 5-isomer

Cat. # Quantity Price Lead time
A18B0 1 mg $110.00 10 days
B18B0 5 mg $290.00 10 days
D18B0 25 mg $690.00 10 days
E18B0 50 mg $1270.00 10 days
F18B0 100 mg $1990.00 10 days

Alkyne derivative of AF488 dye for copper-catalyzed cycloaddition to azides (CuAAC). AF488 alkyne is useful for fluorescent labeling of azidated biomolecules, polymers, and surfaces. AF488 is sulfonated rhodamine, a bright, photostable, and hydrophilic fluorophore that emits in the green channel (absorption max. is 495 nm, emission max. is 519 nm).

Absorption and emission spectra of AF488

Absorption and emission spectra of AF488

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General properties

Molecular weight: 773.93
Molecular formula: C36H47N5O10S2
Quality control: NMR 1H and HPLC-MS (95+%)
Storage conditions: 24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Desiccate. Avoid prolonged exposure to light.
MSDS: Download
Product specifications

Spectral properties

Excitation/absorption maximum, nm: 495
ε, L⋅mol−1⋅cm−1: 71800
Emission maximum, nm: 519
Fluorescence quantum yield: 0.91
CF260: 0.16
CF280: 0.10
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