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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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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

Product Name

Resorufin β-D-galactopyranoside, ~95%

Assay

~95%

Quality Level

200

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. It is hydrolyzed by the enzyme β-galactosidase (β-Gal) to yield fluorescent resorufin.

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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

R4883-100MG:
R4883-10MG:
R4883-BULK:
R4883-VAR:

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Certificates of Analysis (COA)

Lot/Batch Number
BCCD0023
BCCC4587
BCBZ8478
BCBX9229
BCBX4607

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Microchip device for performing enzyme assays
Hadd AG, et al.
Analytical Chemistry, 69(17), 3407-3412 (1997)
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)
Yuliang Xie et al.
Analytical chemistry, 84(17), 7495-7501 (2012-08-14)
In this work we present an acoustofluidic approach for rapid, single-shot characterization of enzymatic reaction constants K(m) and k(cat). The acoustofluidic design involves a bubble anchored in a horseshoe structure which can be stimulated by a piezoelectric transducer to generate
Seung-Yong Jung et al.
Langmuir : the ACS journal of surfaces and colloids, 24(9), 4439-4442 (2008-03-26)
A device with femtoliter-scale chambers and controlled reaction initiation was developed for single-molecule enzymology. Initially separated substrate and enzyme streams were rapidly mixed in a microfluidic device and encapsulated in an array of individual microreactors, allowing for enzyme kinetics to
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
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