AF 555 azide

Cat. # Quantity Price Lead time
SK830 250 ug –   in stock
1K830 1 mg $140 in stock
2K830 5 mg $450 in stock
4K830 25 mg $1460 in stock
5K830 50 mg $1890 in stock
6K830 100 mg $2640 in stock
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AF 555 dye azide for сlick сhemistry conjugation with terminal alkynes via a copper-catalyzed click reaction or strained cyclooctynes via a copper-free click reaction.

AF 555 is a hydrophilic fluorophore with high fluorescence quantum yield and high photostability, an alternative to tetramethylrhodamine (TAMRA, TMR) or Cyanine3 dyes. The dye is useful for many applications, including cytometry and microscopy.

Absorption and emission spectra of AF 555

Absorption and emission spectra of AF 555

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Pure dimethyl sulfoxide (DMSO) solvent with quality optimized for bioconjugation reactions.

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General properties

Appearance: dark red solid
Molecular weight: 1043.40
Molecular formula: C38H49K3N6O13S4
Solubility: good in water, DMF, DMSO
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: 552
ε, L⋅mol−1⋅cm−1: 152000
Emission maximum, nm: 566
Fluorescence quantum yield: 0.14
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