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7-O-Amino-4-methylumbelliferone

7-O-Amino-4-methylumbelliferone

CAS No.:99908-11-9

Useful in a simple spectroscopic assay for aldehydes in biologically relevant media.
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Coumarin derivatives such as 7-O-Amino-4-methylumbelliferone have been shown to be useful in a simple spectroscopic assay for aldehydes in biologically relevant media.(1) Condensation of this compound with aldehydes (e.g., formaldehyde) forms aldimines that are susceptible to elimination with Lewis bases such as bovine serum albumin (BSA), forming blue-fluorescent 4-methylumbelliferone (4-MU). The excitation and emission maxima for 4-MU are the same at pH 7.0 (water) and pH 10.3 (0.15 M glycine buffer).(2) Maximum fluorescence was observed at 445 nm when excited at 365 nm, and the fluorescence intensity is 100 times as intense at pH 10.3 than at pH 7.0.
5 mg = 26.2 micromoles; 25 mg = 131 micromoles.

Ref:

  1. Salahuddin, S.; Renaudet, O.; Reymond, J.-L. Org. Biomol. Chem. 2004, 2, 1471-1475.
  2. Strachan, R.; Wood, J.; Hirschmann, R. J. Org. Chem. 1962, 27, 1074-1075.
Brand Berry
Type Nucleosides

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