Description

O-(N-acetyl-α-neuraminosyl)-(2->3)-O-β-D-galactopyranosyl-(1->4)-O-2-(acetylamino)-2-deoxy-β-D-glucopyranosyl-(1->3)-O-β-D-galactopyranosyl-(1->4)-O-2-(acetylamino)-2-deoxy-β-D-glucopyranosyl-(1->3)-O-β-D-galactopyranosyl-(1->4)- D-Gluc is a complex, well-defined oligosaccharide, specifically a branched hexasaccharide containing N-acetylneuraminic acid (sialic acid). This compound is of significant value as a high-purity biochemical standard and a critical intermediate for advanced research in glycobiology and immunology. It is essential for scientists and manufacturers in the pharmaceutical, diagnostic, and life science sectors who require precise molecular tools for studying carbohydrate-protein interactions, vaccine development, and biomarker discovery.

Application

• Biochemical Research Standard: Used as a reference standard in HPLC, MS, and NMR for the identification and quantification of complex carbohydrates.
• Glycobiology Studies: A key substrate for investigating enzyme kinetics of glycosyltransferases, glycosidases, and sialyltransferases.
• Vaccine & Therapeutic Development: Serves as a critical hapten or conjugate in the research and development of carbohydrate-based vaccines and targeted biologics.
• Diagnostic Reagent Synthesis: Employed in the manufacture of high-specificity ligands for diagnostic assays targeting cell surface antigens and pathogens.
• Cell Signaling & Adhesion Research: Used to study the role of specific glycan epitopes in cell-cell communication, immune response, and disease mechanisms.
• Pharmaceutical Intermediates: Acts as a sophisticated building block for the synthesis of novel glycoconjugates and glycomimetic drugs.

Basic Information

Product Name	O-(N-acetyl-α-neuraminosyl)-(2->3)-O-β-D-galactopyranosyl-(1->4)-O-2-(acetylamino)-2-deoxy-β-D-glucopyranosyl-(1->3)-O-β-D-galactopyranosyl-(1->4)-O-2-(acetylamino)-2-deoxy-β-D-glucopyranosyl-(1->3)-O-β-D-galactopyranosyl-(1->4)- D-Gluc
CAS No.	118023-86-2
Molecular Formula	C58H95N5O44
Molecular Weight	1566.37 g/mol
Synonyms	Hexasaccharide 118023-86-2; Sialyl Lacto-N-neotetraose c (LSTc); Sialyl Lewis x (sLex) precursor; Neu5Acα2-3Galβ1-4GlcNAcβ1-3Galβ1-4GlcNAcβ1-3Galβ1-4Glc; 3'-Sialyl-N-acetyllactosamine extended; Branched sialylated hexasaccharide; Oligosaccharide LSTc; Glycan standard 118023-86-2
EINECS	Contact for details

Quality Control

Every batch of our O-(N-acetyl-α-neuraminosyl)-(2->3)-O-β-D-galactopyranosyl-(1->4)-O-2-(acetylamino)-2-deoxy-β-D-glucopyranosyl-(1->3)-O-β-D-galactopyranosyl-(1->4)-O-2-(acetylamino)-2-deoxy-β-D-glucopyranosyl-(1->3)-O-β-D-galactopyranosyl-(1->4)- D-Gluc is produced and analyzed under strict quality management systems. Our products undergo rigorous purity and identity verification using advanced analytical techniques including HPLC, NMR, and Mass Spectrometry to ensure compliance with research-grade standards. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and moisture content is 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). For long-term storage, consider desiccation. Allow the sealed vial to equilibrate to room temperature before opening to minimize moisture condensation.

Specification

Item	Specification
Appearance	White to off-white powder
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.