β-Galactosidase from Escherichia coli(Purified), CAS No.9031-11-2

CAS: 9031-11-2 Cat. No.: G128643 EC Number: 232-864-1 PubChem CID: 439353
AVAILABLE TO ORDER
GRADE & PURITY EnzymoPure™ ? EnzymoPure™ — Aladdin's line of high-quality enzymatic solutions. Use when enzyme purity and defined activity drive assay or process performance. ≥300 units/mg protein
Accession #
P00722
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
1KU
G128643-1KU
1

$411.90

$481.90
Save $70.00 (14.53%)
5KU
G128643-5KU
1

$1,588.90

$2,060.90
Save $472.00 (22.90%)
Enter a quantity for the sizes you want to add.
🧪

Why this grade

EnzymoPure™, ≥300 units/mg protein EnzymoPure™ for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at 2-8°C Ships Wet ice Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 3 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

 

Product Description:
suspension in 1.6M ammonium sulfate
Note: Product code G128643 is not suitable for immunoconjugation applications due to the presence of ammonium sulfate.

Specifications

Product Name
β-Galactosidase from Escherichia coli(Purified), CAS No.9031-11-2
Synonyms
β-D-Galactoside galactohydrolase;Lactase
Grade
EnzymoPure™
Specifications & Purity
EnzymoPure™, ≥300 units/mg protein
Biochemical and Physiological Mechanisms
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.
Accession #
CAS
9031-11-2
Enzyme Commission Number
3.2.1.23
Molecule Type
Small molecule
Product Properties
NacresNA.54
Storage and Shipping
Concentration
≥300 units/mg protein
Storage
Store at 2-8°C
Shipped In
Wet ice
Unit definition
Unit Definition: One Unit hydrolyzes one micromole of o-nitrophenyl-β-D-galactopyranoside per minute at 25°C, pH 7.5

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Associated Targets(Human)
ASGR1 Tbio Asialoglycoprotein receptor 1 (30 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ACR Tchem Acrosin (277 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Associated Targets(non-human)
Lgals3 Galectin-3 (98 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mechanisms of Action
Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

4 results found

Lot NumberCertificate TypeDateItem
L2301175Certificate of AnalysisNov 21, 2023 G128643
L2301176Certificate of AnalysisNov 21, 2023 G128643
L2301177Certificate of AnalysisNov 21, 2023 G128643
L2205226Certificate of AnalysisOct 14, 2022 G128643
Documents & Articles
Citations of This Product
References
1. Wang Jiawei, Du Yi, Du Jianxiu.  (2022)  Green-emission nitrogen-doped carbon quantum dots from alkaline N-methyl-2-pyrrolidinone for determination of β-galactosidase and its inhibitors.  MICROCHIMICA ACTA,  189  (8): (1-10).  [PMID:35840722] [10.1007/s00604-022-05378-3]
2. Chen Zhang, Ziyang He, Jinjin Liu, Yufei Zhang, Marco Marcucci, Yihuan Li, Zexin Lin.  (2025)  Improving Spirulina protein purification by addressing polysaccharides and alcohol-soluble components interference in ultrafiltration.  Future Foods,      [PMID:] [10.1016/j.fufo.2025.100581]
3. Yongming Wang, Yangcan Ming, Zhichao Yu, Zhenjin Xu, Minglang Zou, Cuiping Chen, Fang Luo, Da Huang, Na Wang, Zhenyu Lin, Zuquan Weng.  (2025)  ROS-Responsive Cationic Polymers with Intrinsic Anti-Inflammatory Activity for Intracellular Protein Delivery.  BIOMACROMOLECULES,      [PMID:40114391] [10.1021/acs.biomac.4c01593]
Solution Calculators
Reviews

Customer Reviews

Need help choosing the grade?

Our grade selection guide covers purity, stabilizer status, and application suitability for all variants in our catalog.

View EnzymoPure™ grade guide →

Shall we send you a message when we have discounts available?

Remind me later

Thank you! Please check your email inbox to confirm.

Oops! Notifications are disabled.