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3-azido-7-hydroxy Coumarin is a click-reactive fluorescent dye. Upon copper(I)-catalyzed azide/alkyne cycloaddition (CuAAC) in a biological system, a fluorescent product is produced that displays excitation/emission maxima of 404 and 477 nM, respectively. 3-azido-7-hydroxy Coumarin has been used for spatially restricted metabolite labeling and the detection of foodborne pathogens.Formal Name: 3-azido-7-hydroxy-2H-1-benzopyran-2-one. CAS Number: 817638-68-9. Synonyms: 3-azido-7-Hydroxycoumarin, AHC, Azidohydroxycoumarin. Molecular Formula: C9H5N3O3. Formula Weight: 203.2. Purity: >95%. Emission: 477 nm. Excitation: 404 nm. Formulation: (Request formulation change), A solid. Solubility: Acetonitrile: Soluble, DMSO: Soluble, Methanol: Soluble. SMILES: O=C1C(N=[N+]=[N-])=CC2=CC=C(O)C=C2O1. InChi Code: InChI=1S/C9H5N3O3/c10-12-11-7-3-5-1-2-6(13)4-8(5)15-9(7)14/h1-4,13H. InChi Key: KKJNQKVCZCNJDI-UHFFFAOYSA-N.
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