O-Phthalaldehyde (CAS 643-79-8) User Guide: Applications, Case Studies & Procurement
Table of Contents
- 1. Product Overview & Technical Specifications
- 2. Key Applications & Industry Use Cases
- 3. Comparative Analysis with Alternative Compounds
- 4. Operational Best Practices
- 5. Verified Customer Success Stories
- 6. Technical Consultation & Quotation
1. Product Overview & Technical Specifications
| Parameter | O-Phthalaldehyde (OPA) |
|---|---|
| CAS Number | 643-79-8 |
| Molecular Formula | C8H6O2 |
| Purity Grade | ≥98% (HPLC) |
| Appearance | Yellow crystalline powder |
| Solubility | Water: 50 mg/mL (20°C) |
| Storage Conditions | 2-8°C in amber glass |
2. Key Applications & Industry Use Cases
Primary Functional Applications:
- High-Level Disinfection: CDC-approved cold sterilization for medical devices
- Fluorogenic Tagging: Primary amine detection in HPLC analysis
- Protein Characterization: Thiol group quantification in biopharma
- Industrial Biocides: Cooling water system microbial control
3. Comparative Analysis with Alternative Compounds
| Feature | OPA | Glutaraldehyde | Ortho-Phenylphenol |
|---|---|---|---|
| Activation Time | 5-12 minutes | 20-45 minutes | 30-60 minutes |
| pH Tolerance | 7.5-8.5 | 7.0-8.5 | 3.0-10.0 |
| Material Compatibility | Plastics/Rubber | Metals/Ceramics | General Purpose |
4. Operational Best Practices
Disinfection Protocol Example:
- Prepare 0.5% OPA solution in borate buffer (pH 8.0)
- Immerse instruments for 12 minutes at 20°C
- Rinse with sterile water (3x exchanges)
- Validate sporicidal activity with biological indicators
5. Verified Customer Success Stories
Case 1: Central Sterile Services Department Upgrade
- Client: Regional Hospital Network (Germany)
- Challenge: Reduce endoscope reprocessing time
- Solution: Implemented OPA-based Trophon® EPR system
- Result: 40% faster turnaround, 0% contamination in 12-month audit
Case 2: Biopharma QC Laboratory
- Client: mRNA Vaccine Producer (USA)
- Challenge: Improve capsid protein quantification accuracy
- Solution: OPA fluorometric assay implementation
- Result: Achieved 0.1 ng/mL detection sensitivity
6. Technical Consultation & Quotation
For batch-specific COA, GMP documentation, or customized formulation requests:
- Email: info@vivalr.com
- Tel: (86) 15866781826
Request bulk pricing (25kg+ quantities available) or schedule technical webinar.



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