3-Carboxyumbelliferyl b-D-galactopyranosideA fluorogenic substrate

3-Carboxyumbelliferyl b-D-galactopyranoside (CAS 64664-99-9)

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Synonym: CUG
Application: A fluorogenic substrate
CAS Number: 64664-99-9
Molecular Weight: 368.29
Molecular Formula: C16H16O10
* Refer to Certificate of Analysis for lot specific data (including water content).
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3-Carboxyumbelliferyl b-D-galactopyranoside is a fluorogenic substrate. It releases free 3-carboxyumbelliferone upon bet-galactosidase enzyme activity. 3-caboxyumbelliferone has the following fluorescent activity: λex = 386, λem 445 nm, ε = 32K. In acidic conditions (below pKa 7.8) the absorption shifts to lower wavelengths (235-340 nm) and fluorescence intensity decreases.

Physical State :
Solid
Storage :
Desiccate at -20° C
Fluoresence :
λex 330 nm, λem 396 nm; free 3-carboxyumbelliferone has an λex = 386, λem 445 nm, ε = 32K.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
PubChem CID :
10133607
SMILES :
C1=CC2=C(C=C1O[C@H]3[C@@H]([C@H]([C@H]([C@H](O3)CO)O)O)O)OC(=O)C(=C2)C(=O)O

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Certificate of Analysis

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