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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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
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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Cat. # Quantity Price Lead time
12620 1 mg $110 in stock
22620 5 mg $210 in stock
42620 25 mg $410 in stock
52620 50 mg $695 in stock
62620 100 mg $1190 in stock
Found better price? Let us know and we will propose the way forward!

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