Description

Sialyl Lea Tetra CAS NO 127321-43-1 is a high-purity, synthetic tetrasaccharide carbohydrate derivative. This compound is a critical intermediate and reference standard in glycobiology research and pharmaceutical development. It is primarily utilized by researchers and manufacturers in the life sciences sector for studying cell-cell interactions, cancer metastasis, and for the development of novel therapeutics and diagnostic tools.

Application

• Glycobiology Research: As a key reference standard and substrate for studying sialyl Lewis A (sLea) antigen-related biological pathways.
• Pharmaceutical Development: An essential intermediate in the synthesis of complex carbohydrate-based drugs, including selectin inhibitors for anti-inflammatory and anti-metastatic applications.
• Diagnostic Reagent Production: Used in the formulation of high-specificity immunoassays and diagnostic kits targeting sLea-expressing cells.
• Biochemical Tool: Employed in enzymatic studies, ligand-binding assays, and as a hapten for antibody generation.
• Academic & Institutional Research: Supports fundamental research in immunology, oncology, and inflammation biology at universities and research institutes.

Basic Information

Product Name	Sialyl Lea Tetra
CAS No.	127321-43-1
Molecular Formula	C31H52N2O23
Molecular Weight	820.75 g/mol
Synonyms	Sialyl Lewis A Tetrasaccharide; sLea Tetrasaccharide; CA19-9 Antigen Tetrasaccharide; Neu5Acα2-3Galβ1-3[Fucα1-4]GlcNAcβ-; 5-N-Acetylneuraminyl- Lewis a; α-Neu5Ac-(2→3)-β-D-Gal-(1→3)-[α-L-Fuc-(1→4)]-D-GlcNAc; Tetrasaccharide SLea; Sialyl Lea
EINECS	Contact for details

Quality Control

Every batch of Sialyl Lea Tetra is manufactured under strict quality management protocols. We provide comprehensive analytical data to ensure identity, purity, and consistency, supporting GLP and research-grade standards. A detailed Certificate of Analysis (COA) with results from HPLC, NMR, and MS is supplied with each shipment to guarantee traceability and meet the stringent requirements of pharmaceutical and academic research.

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 hydrolysis.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (HPLC)	Conforms to reference standard
Identification (NMR)	Conforms to structure
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.