AF 343 (Coumarin)-X-azide

Cat. # Quantity Price Lead time
12630 1 mg
$105
in stock
22630 5 mg
$165
in stock
42630 25 mg
$285
in stock
52630 50 mg
$495
in stock
62630 100 mg
$880
in stock
Found better price? Let us know and we will propose the way forward!

AF 343 (Coumarin) is a blue emitting fluorophore with an emission maximum of around 480 nm. This dye forms a FRET pair with fluorescein and can harvest blue light energy for the subsequent transfer to other fluorophores.

The azide derivative can be conjugated with alkynes in copper-catalyzed and copper-free сlick reactions. The molecule contains a long aminohexanoyl linker that provides separation between the dye and the azide function.

Absorption and emission spectra of AF 343 (Coumarin)

Absorption and emission spectra of AF 343 (Coumarin)

Customers also purchased with this product

Perylene azide

Perylene is an extremely bright and photostable fluorescent label with green fluorescence.

Cyanine2 NHS ester minimal dye

Cyanine2 NHS ester minimal dye for protein labeling, an equivalent of Cy2 NHS ester minimal dye.

BDP® FL azide

BDP FL is a bright and photostable borondipyrromethene dye for the fluorescein channel. This is a dye azide for сlick сhemistry.

General properties

Appearance: yellow solid
Mass spec M+ increment: 480.3
Molecular weight: 480.56
Molecular formula: C25H32N6O4
IUPAC name: 5-{[6-(3-Azidopropylamino)-6-oxohexylamino]carbonyl}-3-oxa-13-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1,5,7,9(17)-tetraen-4-one
Solubility: good in 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: 437
ε, L⋅mol−1⋅cm−1: 39000
Emission maximum, nm: 477
Fluorescence quantum yield: 0.63
CF260: 0.29
CF280: 0.24
Your item has been added. View your cart or proceed to checkout
The count of items is incorrect.