disodium 2,2′-dihydroxy-4,4′-dimethoxy-5,5′-disulfobenzophenone cas 76656-36-5
Chemical Name:Disodium 2,2′-dihydroxy-4,4′-dimethoxy-5,5′-disulfobenzophenone
CAS No.: 76656-36-5
Molecular Formula: C15H12Na2O11S2
Molecular Weight: 478.36
Appearance:Light yellow crystal powder
Disodium 2,2′-Dihydroxy-4,4′-Dimethoxy-5,5′-Disulfobenzophenone (CAS 76656-36-5): Comprehensive Product Guide
Contents
- Product Overview & Specifications
- Key Applications & Industrial Uses
- Usage Guidelines & Best Practices
- Industry Case Studies
- Technical Comparison with Alternatives
- Request Customized Solutions
Product Specifications
| Parameter | Value |
|---|---|
| CAS Number | 76656-36-5 |
| Molecular Formula | C20H16Na2O11S2 |
| Molecular Weight | 554.43 g/mol |
| Appearance | Light yellow crystalline powder |
| Solubility | Water-soluble (>100g/L at 20°C) |
| UV Absorption Range | 280-350 nm |
| pH Stability | 3.0-11.0 |
| Thermal Stability | Stable up to 250°C |
Industrial Applications
Primary Use Cases:
- UV Absorber in Sunscreen Formulations
- Polymer Stabilizer for Engineering Plastics
- Coating Additive for Automotive Finishes
- Textile Treatment for UV Protection
- Printing Ink Stabilizer
Implementation Protocols
Recommended Dosages:
| Application | Concentration Range |
|---|---|
| Sunscreen Products | 5-10% w/w |
| Polymer Compounds | 0.5-2% w/w |
| Industrial Coatings | 1-3% w/w |
Processing Guidelines:
- Pre-disperse in aqueous phase at 40-50°C
- Maintain pH between 5.5-7.0 during incorporation
- Avoid simultaneous use with cationic surfactants
Client Success Stories
Case 1: Cosmetic Manufacturer (Spain)
Challenge: Needed SPF boost in water-resistant sunscreen
Solution: 8% concentration with improved dispersion technique
Result: 22% SPF increase, 18-month stability
Case 2: Automotive Plastic Supplier (Germany)
Challenge: UV degradation in polycarbonate components
Solution: 1.5% masterbatch formulation
Result: 300% lifespan extension under UV exposure
Competitive Analysis
| Feature | Our Product | Benzophenone-3 | Benzophenone-4 |
|---|---|---|---|
| Water Solubility | High | Low | Moderate |
| pH Range | 3-11 | 5-8 | 4-9 |
| Thermal Stability | 250°C | 180°C | 200°C |
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