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R4883

Sigma-Aldrich

Resorufin β-D-galactopyranoside

~95%, powder

Synonym(s):

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

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10 MG
RM 765.00
100 MG
RM 3,691.00

RM 765.00

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10 MG
RM 765.00
100 MG
RM 3,691.00

About This Item

Empirical Formula (Hill Notation):
C18H17NO8
CAS Number:
95079-19-9
Molecular Weight:
375.33
Beilstein:
4335306
MDL number:
MFCD00064055
UNSPSC Code:
12352204
PubChem Substance ID:
24899376
NACRES:
NA.32

RM 765.00

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Product Name

Resorufin β-D-galactopyranoside, ~95%

Assay

~95%

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 Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCD0023
BCCC4587
BCBZ8478
BCBX9229
BCBX4607

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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
Sachin Jambovane et al.
Analytical chemistry, 81(9), 3239-3245 (2009-04-03)
We have demonstrated a multistep enzyme reaction on a chip to determine the key kinetic parameters of enzyme reaction. We designed and fabricated a fully integrated microfluidic chip to have sample metering, mixing, and incubation functionalities. The chip generates a
K D Wittrup et al.
Cytometry, 9(4), 394-404 (1988-07-01)
A novel assay of single-cell exogenous beta-galactosidase activity in Saccharomyces cerevisiae has been developed. Intracellular fluorescence due to the hydrolysis of resorufin-beta-D-galactopyranoside attains a steady state between production of resorufin and its subsequent leakage from the cell. The cells are
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