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3-Cyanoumbelliferone ≥98.0% (by GC)

Supplier: TCI America
Description: CAS Number: 19088-73-4 MDL Number: MFCD00037480 Molecular Formula: C10H5NO3 Molecular Weight: 187.15 Purity/Analysis Method: <gt/>98.0% (GC) Form: Crystal Melting point (°C): 280 Lambda max.: 450 nm (MeOH)

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Product Image-76480-480

3-Cyanoumbelliferone ≥95%

Catalog Number: (76480-480)
Supplier: AAT BIOQUEST INC
Description: 3-Cyano-7-hydroxycoumarin is used as a calibration standard for 3-cyano-7-hydroxycoumarin-based enzyme substrates.

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3-Cyanoumbelliferone

Supplier: Adipogen
Description: Phenolic dyes with high pKas - such as 7-hydroxycoumarin (often called umbelliferone) and the more common 7-hydroxy-4-methylcoumarin - are not fully deprotonated and therefore not fully fluorescent unless the pH of the reaction mixture is raised to above pH ~10. Thus, substrates derived from these fluorophores are seldom used for continuous measurement of enzymatic activity in solution or live cells. The similar 3-cyano-7-hydroxycoumarin and 6,8-difluoro-7-hydroxy-4-methylcoumarin have lower pKas, making them suitable for a broader range of applications. Moreover, the -trifluoromethylumbelliferone product has longer-wavelength spectra and stronger absorbance than -methylumbelliferone. Ether, ester and phosphate substrates derived from these phenolic dyes may be fluorescent but invariably exhibit shorter-wavelength absorption and emission spectra.

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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-932-5000.
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