Lewis A Antigen (CAS 21973-23-9): Comprehensive Product Guide
Table of Contents
- 1. Product Overview & Specifications
- 2. Key Applications
- 3. Usage Guidelines
- 4. Case Studies
- 5. Client Success Stories
- 6. Request a Quote
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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