Coumarin 343 azide

This product is discontinued, and no longer available.
 We recommend AF 343 (Coumarin)-X-azide as a substitute

This product will be discontinued soon in favor of Coumarin 343 X azide. We may still have some material in stock (please see availability above).

This greenish-blue emitting fluorophore can be used as a FRET donor for FAM. Azide derivative is suitable for click chemistry.

Coumarin 343 absorption and emission spectra

Coumarin 343 absorption and emission spectra

Customers also purchased with this product

Perylene azide

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

DBCO-NHS ester

Azodibenzocyclooctyne (DBCO, ADIBO) reagent for strain-promoted copper-free click chemistry (SPAAC). The reagent contains an NHS ester function for the attachment of the cyclooctyne to various molecules.

Cyanine3 azide

Azide derivative of Cyanine3 fluorescent dye for сlick сhemistry.

General properties

Appearance: yellow powder
Molecular weight: 441.48
CAS number: 1807503-82-7
Molecular formula: C22H27N5O5
Solubility: Good in organic solvents (DCM, chloroform, DMF, DMSO, MeCN, alcohols), poor in water
Quality control: NMR 1H (95%) TLC, functional testing
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.
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

Product citations

  1. Musiol-Kroll, E.M.; Zubeil, F.; Schafhauser, T.; Härtner, T.; Kulik, A.; McArthur, J.B.; Koryakina, I.; Wohlleben, W.; Grond, S.; Williams, G.J.; Lee, S.Y.; Weber, T. Polyketide bio-derivatization using the promiscuous acyltransferase KirCII. ACS Synthetic Biology, 2017, 6(3), 421–427. doi: 10.1021/acssynbio.6b00341
  2. Teske, N.S.; Voigt, J.; Shastri, V.P. Clickable Degradable Aliphatic Polyesters via Copolymerization with Alkyne Epoxy Esters: Synthesis and Postfunctionalization with Organic Dyes. Journal of the American Chemical Society, 2014, 136(29), 10527-10533. doi: 10.1021/ja505629w
Your item has been added. View your cart or proceed to checkout
The count of items is incorrect.