Skip to Content
MilliporeSigma
All Photos(3)

Key Documents

View All Documentation

M2405

Sigma-Aldrich

4-Methylumbelliferyl β-D-lactopyranoside

β-galactosidase substrate, ≥98.00% (TLC), powder

Synonym(s):

4-Methylumbelliferyl β-D-lactoside

Sign Into View Organizational & Contract Pricing
All Photos(3)

About This Item

Empirical Formula (Hill Notation):
C22H28O13
CAS Number:
84325-23-5
Molecular Weight:
500.45
Beilstein/REAXYS Number:
8094402
MDL number:
MFCD00083406
UNSPSC Code:
12352204
PubChem Substance ID:
24896730
NACRES:
NA.32

product name

4-Methylumbelliferyl β-D-lactopyranoside, β-galactosidase substrate

Quality Level

200

assay

≥98.00% (TLC)

form

powder

solubility

water: 9.80-10.20 mg/mL, clear, colorless to faintly yellow

fluorescence

λex 365 nm; λem 445 nm (after enzymatic degradation)

storage temp.

−20°C

SMILES string

CC1=CC(=O)Oc2cc(O[C@@H]3O[C@H](CO)[C@@H](O[C@@H]4O[C@H](CO)[C@H](O)[C@H](O)[C@H]4O)[C@H](O)[C@H]3O)ccc12

InChI

1S/C22H28O13/c1-8-4-14(25)32-11-5-9(2-3-10(8)11)31-21-19(30)17(28)20(13(7-24)34-21)35-22-18(29)16(27)15(26)12(6-23)33-22/h2-5,12-13,15-24,26-30H,6-7H2,1H3/t12-,13-,15+,16+,17-,18-,19-,20-,21-,22+/m1/s1

InChI key

PRTGXBPFDYMIJH-KSFLKEQHSA-N

Looking for similar products? Visit Product Comparison Guide

Application

4-Methylumbelliferyl β-D-lactopyranoside has been used as a chromophoric substrate for cellobiohydrolase I (CBHI) in T. reesei. It has also been used as a substrate for cellobiohydrolase I (Cel7A), endoglucanase I (Cel7B) and β-glucosidase from fermented samples in enzymatic assay.

Biochem/physiol Actions

4-Methylumbelliferyl β-D-lactopyranoside is a fluorescence compound hydrolyzed by the enzyme β-glucosidase (βG) and CBH1

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

M J Bailey et al.
Applied microbiology and biotechnology, 62(2-3), 156-162 (2003-04-08)
A low-foaming hydrophobin II deletant of the Trichoderma reesei strain Rut-C30 was used for production of cellulases by continuous cultivation on lactose medium in a laboratory fermenter. The control paradigm of the addition of new medium to the continuous process
Ana Cristina Rodrigues et al.
Bioresource technology, 156, 163-169 (2014-02-08)
The potential of enzymes recycling after hydrolysis and fermentation of wheat straw under a variety of conditions was investigated, monitoring the activity of the enzymes in the solid and liquid fractions, using low molecular weight substrates. A significant amount of
Ana Cristina Rodrigues et al.
Enzyme and microbial technology, 79-80, 70-77 (2015-09-01)
The hydrolysis/fermentation of wheat straw and the adsorption/desorption/deactivation of cellulases were studied using Cellic(®) CTec2 (Cellic) and Celluclast mixed with Novozyme 188. The distribution of enzymes - cellobiohydrolase I (Cel7A), endoglucanase I (Cel7B) and β-glucosidase - of the two formulations

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service