Description

4-Methylphenyl Tetra-o-Acetyl-β-D-Galactopyranoside is a key protected glycosyl donor and synthetic intermediate in carbohydrate chemistry. This compound is crucial for the controlled synthesis of complex oligosaccharides and glycoconjugates, enabling research and development in glycoscience. It is primarily utilized by researchers and manufacturers in the pharmaceutical, biotechnology, and diagnostic sectors for applications such as enzyme substrate development and the synthesis of novel bioactive molecules.

Application

• Glycosylation Reagent: A vital building block for the chemical and enzymatic synthesis of oligosaccharides and glycoconjugates.
• Enzyme Substrate: Used in the study and assay of glycosidases, particularly β-galactosidases, due to its chromogenic leaving group.
• Pharmaceutical Intermediate: Serves as a precursor in the development of carbohydrate-based drugs, prodrugs, and diagnostic agents.
• Glycobiology Research: Essential tool for investigating carbohydrate-protein interactions, cell signaling, and metabolic pathways.
• Bioconjugation: Employed in the preparation of neoglycoproteins, glycopolymers, and other labeled biomolecules for analytical and therapeutic purposes.
• Standards and Reference Material: Used as a high-purity standard in analytical methods like HPLC and mass spectrometry for quality control.

Basic Information

Product Name	4-Methylphenyl Tetra-o-Acetyl-β-D-Galactopyranoside
CAS No.	3520-64-7
Molecular Formula	C21H26O10
Molecular Weight	438.43 g/mol
Synonyms	p-Methylphenyl 2,3,4,6-Tetra-O-acetyl-β-D-galactopyranoside; 4-Methylphenyl 2,3,4,6-Tetra-O-acetyl-β-D-galactopyranoside; p-Cresyl 2,3,4,6-Tetra-O-acetyl-β-D-galactopyranoside; 4-Acetoxybenzyl Tetraacetyl-β-D-galactopyranoside; Tetraacetyl-β-D-galactosyl p-cresol; β-D-Galactopyranoside, 4-methylphenyl 2,3,4,6-tetraacetate
EINECS	Contact for details

Quality Control

Our 4-Methylphenyl Tetra-o-Acetyl-β-D-Galactopyranoside is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, NMR for structural confirmation, and optical rotation measurement. A Certificate of Analysis (COA) detailing all specifications is provided to ensure traceability and compliance with your research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 15-25°C. This compound is hygroscopic (moisture-sensitive); therefore, the container must be kept tightly sealed in a dry environment to prevent degradation. For long-term storage, consider using a desiccator.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Specific Optical Rotation	-20° to -25° (c=1 in CHCl3)
Melting Point	135°C - 140°C
Loss on Drying	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.