Skip to Content
Merck
All Photos(3)

Key Documents

G1875

Sigma-Aldrich

β-Galactosidase from bovine liver

Grade III, lyophilized powder, ≥0.15 units/mg protein

Synonym(s):

β-D-Galactoside galactohydrolase

Sign Into View Organizational & Contract Pricing


About This Item

CAS Number:
Enzyme Commission number:
EC Number:
MDL number:
UNSPSC Code:
12352204
NACRES:
NA.54

biological source

bovine liver

type

Grade III

form

lyophilized powder

specific activity

≥0.15 units/mg protein

composition

Protein, ≥40%

shipped in

wet ice

storage temp.

−20°C

Application

β-galactosidase was used in the production of a stabilized, single reagent for alcohol analysis.

Biochem/physiol Actions

β-galactosidase cleaves lactose into its monosaccharide components, glucose and galactose. It also catalyses the transglycosylation of glucose into allolactose, the inducer of β-galactosidase, in a feedback loop.

Unit Definition

One unit will hydrolyze 1.0 μmole of o-nitrophenyl β-D-galactoside to o-nitrophenol and D-galactose per min at pH 7.3 at 37 °C.

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

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

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