Description

Blood Group A Tetrasaccharide Type Ii is a defined carbohydrate antigen used as a critical standard and reagent in glycobiology research. This high-purity compound is essential for studying blood group antigen specificity, host-pathogen interactions, and cellular recognition processes. It is primarily utilized by research institutions, diagnostic kit manufacturers, and pharmaceutical companies engaged in vaccine development and immunological studies.

Application

• Glycobiology Research Standard: Serves as a precise reference compound for the analysis and characterization of blood group A antigens and related Type II chain structures.
• Diagnostic Reagent Development: Used in the formulation and calibration of immunoassays and diagnostic kits for blood typing and antibody detection.
• Enzyme Substrate & Inhibitor Studies: Acts as a substrate for glycosyltransferases or as an inhibitor in studies of enzymatic activity and specificity.
• Vaccine & Therapeutic Research: Employed in the development of carbohydrate-based vaccines and therapeutics targeting specific bacterial or viral adhesins.
• Cell Surface Interaction Studies: Used to probe and inhibit lectin-carbohydrate interactions critical to cell signaling, adhesion, and immune response.
• Analytical Method Validation: Provides a certified standard for validating HPLC, MS, and NMR methods in carbohydrate analysis.

Basic Information

Product Name	Blood Group A Tetrasaccharide Type Ii
CAS No.	73361-87-2
Molecular Formula	C26H43NO21
Molecular Weight	681.62 g/mol
Synonyms	Blood Group A Antigen Type II Tetrasaccharide; A Type II Tetrasaccharide; GalNAcα1-3(Fucα1-2)Galβ1-4GlcNAc; N-Acetyl-α-D-galactosaminyl-(1→3)-[α-L-fucosyl-(1→2)]-β-D-galactosyl-(1→4)-N-acetyl-D-glucosamine; A-Tetrasaccharide Type II; Blood Group A Determinant Type II; A Trisaccharide Type II (common misnomer); A-active Tetrasaccharide
EINECS	Contact for details

Quality Control

Every batch of Blood Group A Tetrasaccharide Type Ii is manufactured under controlled conditions and undergoes rigorous analytical testing to ensure identity, purity, and consistency. Our quality system is designed to meet the exacting requirements of research and diagnostic applications. A comprehensive Certificate of Analysis (COA) detailing purity (by HPLC), identity confirmation (by NMR and/or MS), and other critical parameters 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). 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 solid
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.