Description

Lewis X Tetrasaccharide is a structurally defined oligosaccharide representing the Lewis X (Lex) antigen, a crucial carbohydrate epitope in biological recognition. This compound is essential for researchers and developers in glycobiology and immunology, serving as a key tool for studying cell-cell interactions, immune responses, and developmental processes. It is primarily utilized by the pharmaceutical, diagnostic, and biotechnology industries for applications in vaccine development, biomarker research, and the synthesis of complex glycoconjugates.

Application

• Glycobiology Research: As a standard and probe for studying carbohydrate-protein interactions, lectin binding, and glycan-mediated signaling pathways.
• Immunological Studies: Investigation of the role of Lewis X antigens in immune cell trafficking, inflammation, and host-pathogen interactions.
• Diagnostic Reagent Development: Used in the design and production of ELISA kits, lateral flow assays, and other diagnostic tools targeting cancer or infection biomarkers.
• Vaccine Adjuvant & Conjugate Synthesis: Serves as a hapten or component in the development of carbohydrate-based vaccines against bacterial or fungal pathogens.
• Cell Culture & Stem Cell Research: Applied in studies of embryonic development and stem cell differentiation where Lewis X antigens are expressed.
• Pharmaceutical Intermediates: Acts as a key building block for the chemical and enzymatic synthesis of more complex oligosaccharides or glycoconjugates with therapeutic potential.
• Quality Control Standard: Employed as a reference standard in the quality assurance of biopharmaceuticals or diagnostic products that involve carbohydrate analysis.

Basic Information

Product Name	Lewis X Tetrasaccharide
CAS No.	23425-36-7
Molecular Formula	C26H43NO20
Molecular Weight	665.62 g/mol
Synonyms	Lex Tetrasaccharide; Galβ1-4(Fucα1-3)GlcNAcβ1-3Galβ1-4Glc; Lacto-N-fucopentaose III (LNF III); 3-Fucosyllacto-N-tetraose; CD15 Antigen Tetrasaccharide; Lewisa Blood Group Antigen (isomeric form); Fucosyllacto-N-tetraose; Galactosyl(β1-4)[fucosyl(α1-3)]-N-acetylglucosaminyl-(β1-3)-galactosyl-(β1-4)-glucose
EINECS	Contact for details

Quality Control

Our Lewis X Tetrasaccharide is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation (NMR, MS), to ensure it meets the high standards required for research and development. Certificates of Analysis (COA) detailing batch-specific results are available upon request.

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 (MS)	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.