AF 343 (Coumarin) in Fluorophores

Absorption max 437 nm Emission max 477 nm

Fluorophore chart

Coumarin (AF 343) is a blue emitting fluorophore that forms a FRET pair with FAM as a donor.

AF 343 (Coumarin)-X-azide

AF 343 (Coumarin) is a blue emitting fluorophore that can serve as a FRET donor for fluorescein (FAM). This azide derivative can be conjugated with alkynes by сlick chemistry. An extended linker arm between the fluorophore and the azide group enhances solubility and provides spatial separation between the dye and the biomolecule.

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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

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Found better price? Let us know and we will propose the way forward!

AF 343 (Coumarin)-X-carboxylic acid

AF 343 (Coumarin) carboxylic acid. Extended aminohexanoyl linker increases solubility and provides spatial separation between the fluorophore, and the functional group.

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Cat. #	Quantity	Price	Lead time
12690	1 mg	$105	in stock
22690	5 mg	$165	in stock
42690	25 mg	$285	in stock
52690	50 mg	$495	in stock
62690	100 mg	$880	in stock

Bulk inquiry

Found better price? Let us know and we will propose the way forward!

AF 343 (Coumarin)-X-NHS ester

AF 343 (Coumarin) is a blue emitting dye that can serve as a FRET donor for fluorescein (FAM). This structure features a linker between Coumarin 343 fluorophore, and the functional group. It provides better solubility, and spatial separation between the dye, and the functional group.

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