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Merck

R4883

Sigma-Aldrich

Resorufin β-D-galactopyranoside

~95%, powder

Sinónimos:

3-Phenoxazone 7-(β-D-galactopyranoside)

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About This Item

Fórmula empírica (notación de Hill):
C18H17NO8
Número de CAS:
Peso molecular:
375.33
Beilstein/REAXYS Number:
4335306
MDL number:
UNSPSC Code:
12352204
PubChem Substance ID:
NACRES:
NA.32
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Nombre del producto

Resorufin β-D-galactopyranoside, ~95%

assay

~95%

Quality Level

form

powder

solubility

DMSO: 20 mg/mL, clear, orange to red

Storage temp.

−20°C

SMILES string

OC[C@H]1O[C@@H](Oc2ccc3N=C4C=CC(=O)C=C4Oc3c2)[C@H](O)[C@@H](O)[C@H]1O

InChI

1S/C18H17NO8/c20-7-14-15(22)16(23)17(24)18(27-14)25-9-2-4-11-13(6-9)26-12-5-8(21)1-3-10(12)19-11/h1-6,14-18,20,22-24H,7H2/t14-,15+,16+,17-,18-/m1/s1

Inchi Key

QULZFZMEBOATFS-DISONHOPSA-N

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General description

Resorufin β-D-galactopyranoside is a non-fluorescent compound and is orange-yellow in color.[1] It is hydrolyzed by the enzyme β-galactosidase (β-Gal) to yield fluorescent resorufin.[2]

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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Immobilized enzyme kinetics analyzed by flow-through microfluorimetry: resorufin-beta-D-galactopyranoside as a new fluorogenic substrate for beta-galactosidase
Hofmann J and Sernetz M
Analytica Chimica Acta, 163, 67-72 (1984)
Microchip device for performing enzyme assays
Hadd AG, et al.
Analytical Chemistry, 69(17), 3407-3412 (1997)
Brian P English et al.
Nature chemical biology, 2(2), 87-94 (2006-01-18)
Enzymes are biological catalysts vital to life processes and have attracted century-long investigation. The classic Michaelis-Menten mechanism provides a highly satisfactory description of catalytic activities for large ensembles of enzyme molecules. Here we tested the Michaelis-Menten equation at the single-molecule
Glen K Shoemaker et al.
Biochemistry, 42(6), 1707-1710 (2003-02-13)
By use of a capillary electrophoresis-based procedure, it is possible to measure the activity of individual molecules of beta-galactosidase. Molecules from the crystallized enzyme as well as the original enzyme preparation used to grow the crystals both displayed a range
M J Eggertson et al.
Biomedical chromatography : BMC, 13(8), 516-519 (1999-12-28)
beta-Galactosidase was incubated for 60 min with the fluorogenic substrate resorufin-beta-D-galactopyranoside, which is converted by the action of the enzyme into resorufin and galactose. A 160 pL aliquot of reaction mixture was analyzed by capillary electrophoresis utilizing laser-induced fluorescence detection.

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