Lewis A Antigen Cas 21973-23-9

Chemical Name: Lewis A Antigen
Other Name: Lacto-n-fucopentaose ii, Lea-Lactose; Lea-Lactose; lewis-a-pentasaccharide
CAS No.: 21973-23-9
Molecular Fomula: C32H55NO25

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Lewis A Antigen (CAS 21973-23-9): Comprehensive Product Guide

Table of Contents

1. Product Overview & Specifications

Parameter Lewis A Antigen Lewis B Antigen Lewis X Antigen
CAS Number 21973-23-9 21973-24-0 71210-49-2
Molecular Formula C20H35NO14 C21H37NO14 C19H33NO13
Purity ≥98% (HPLC) ≥95% ≥97%
Storage -20°C (lyophilized) -20°C -80°C

2. Key Applications

2.1 Cancer Biomarker Research

Used to detect elevated levels in pancreatic, gastric, and colorectal cancers.

2.2 Blood Typing

Critical component in Lewis blood group system characterization.

2.3 Diagnostic Development

Essential for ELISA kits targeting epithelial cancers (sensitivity: 0.1 ng/mL).

3. Usage Guidelines

3.1 Reconstitution Protocol

Dissolve 1 mg in 1 mL PBS (pH 7.4) for 1 hour at 25°C.

3.2 Assay Optimization

Typical working concentration: 10-100 μg/mL depending on application.

4. Case Studies

4.1 Pancreatic Cancer Detection

University of California study achieved 89% specificity using Lewis A-based ELISA.

4.2 Vaccine Development

Phase I trial showed 40% immune response rate when conjugated to carrier proteins.

5. Client Success Stories

5.1 ABC Diagnostics

Developed CE-marked test kit with 95% concordance to histopathology results.

5.2 BioPharma Innovators

Reduced lead compound screening time by 60% using Lewis A-coated plates.

6. Request a Quote

Contact our technical team for bulk pricing and custom conjugation services:

Email: info@vivalr.com
Phone: (86) 15866781826

Why Choose Us?

  • GMP-grade manufacturing facilities
  • Batch-to-batch consistency guaranteed
  • 24/7 technical support
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