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

BDP TR amine

BDP TR borondipyrromethene dye with a free amine group for the conjugation with electrophilic reagents and enzymatic transamination reaction. BDP TR is a bright dye for the ROX channel.

TAMRA amine, 5-isomer

TAMRA (tetramethylrhodamine) dye, pure 5-isomer, with an amine group for the conjugation with electrophilic reagents (NHS esters, epoxides, etc).

BDP 630/650 amine

BDP 630/650 is a far red emitting fluorophore for Cyanine5 channel. This fluorophore is based on BDP (borondipyrromethene) core, which provides high quantum yield and photostability. This is an amine derivative of this dye.
Add this product to your cart and
get free express delivery

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.