Description

Sialyl Lex Tetra CAS NO 140913-62-8 is a complex, high-purity carbohydrate derivative, specifically a tetrasaccharide containing sialic acid and fucose residues. This compound is a critical intermediate and reference standard in advanced biomedical research and development. It is primarily utilized by pharmaceutical companies, diagnostic manufacturers, and academic research institutions focused on glycobiology, immunology, and oncology. Its precise structure makes it essential for studying cell-cell recognition, inflammation, and cancer metastasis processes.

Application

• Biomedical Research: As a key reference standard and substrate for studying selectin-mediated cell adhesion, leukocyte trafficking, and inflammatory responses.
• Diagnostic Development: Used in the development and calibration of diagnostic assays and kits targeting specific carbohydrate antigens associated with diseases.
• Pharmaceutical R&D: Serves as a crucial intermediate in the synthesis of complex glycoconjugates for potential therapeutic agents, including anti-inflammatory and anti-metastatic drugs.
• Glycobiology Studies: Essential for enzymatic activity assays, inhibitor screening, and structural analysis of glycosyltransferases and other carbohydrate-processing enzymes.
• Vaccine Research: Investigated as a component in the design of synthetic carbohydrate-based vaccines targeting cancer or bacterial infections.
• Quality Control: Employed as an analytical standard in QC laboratories to ensure the consistency and purity of related biopharmaceutical products.

Basic Information

Product Name	Sialyl Lex Tetra
CAS No.	140913-62-8
Molecular Formula	C47H77N3O33
Molecular Weight	1212.11 g/mol
Synonyms	Sialyl Lewis X Tetrasaccharide; SLex Tetrasaccharide; Neu5Acα2-3Galβ1-4[Fucα1-3]GlcNAcβ-; 3'-Sialyl-N-acetyllactosamine Fucosyl Tetrasaccharide; Sialyl Lex; CD15s Antigen; CA19-9 Antigen Determinant; 3'-Sialyllacto-N-fucopentaose II
EINECS	Contact for details

Quality Control

Every batch of Sialyl Lex Tetra is manufactured under strict quality management systems and undergoes comprehensive analytical characterization to ensure identity, purity, and consistency. Our products are suitable for research and development applications, with specifications typically meeting or exceeding industry standards for high-purity biochemicals. Certificates of Analysis (COA) detailing lot-specific results from NMR, HPLC, and MS are provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store at -20°C or below in a dry environment. This product is hygroscopic (moisture-sensitive). Allow the vial to equilibrate to room temperature in a desiccator before opening to prevent condensation and moisture uptake.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (NMR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Purity (HPLC)	≥ 95%
Water Content (KF)	≤ 5.0%
Specific Rotation	Contact for details

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