Benzophenone-2 (CAS 131-55-5): Comprehensive Product Guide
Table of Contents
1. Product Overview & Technical Specifications
Benzophenone-2 (CAS 131-55-5) Technical Parameters
| Parameter | Benzophenone-2 | Benzophenone-3 | Octinoxate |
|---|---|---|---|
| Molecular Weight | 246.26 g/mol | 228.24 g/mol | 250.34 g/mol |
| Melting Point | 62-65°C | 68-70°C | -20°C |
| UV Absorption Range | 280-350 nm | 270-350 nm | 280-310 nm |
Key Advantages: Superior photostability vs. BP-3, broader UV coverage than Octinoxate, and optimal solubility in cosmetic formulations.
2. Key Applications & Functional Advantages
Primary Functional Roles:
- UV Filter in SPF 15-50 sunscreens
- Color stabilizer in hair dyes
- Polymer preservation in plastics
Formulation Guidelines:
Recommended dosage: 0.5%-5% in leave-on products. Compatible with octocrylene and avobenzone for enhanced UVB/UVA protection.
3. Industry-Specific Use Cases
Case 1: Cosmetic Sunscreen Enhancement
Formula optimization for water-resistant sunscreen (SPF 50+) using 3% Benzophenone-2 achieved 98% UVB absorption efficiency.
Case 2: Hair Care Product Preservation
0.8% concentration in oxidative hair dyes prevented color fading by 72% under accelerated light stability testing.
4. Customer Success Stories
EcoGlow Cosmetics (Spain)
Challenge: Needed eco-friendly UV stabilizer for reef-safe sunscreen.
Solution: 4% Benzophenone-2 formulation passed ISO 24443:2021 testing.
Result: 22% increase in product shelf life.
SunGuard Polymers (USA)
Challenge: Prevent UV degradation in automotive plastics.
Solution: 1.2% Benzophenone-2 additive reduced surface cracking by 89%.
Result: Achieved ASTM D4329 compliance.
5. Request Customized Solutions
Contact our technical team for formulation support:
Email: info@vivalr.comTel: (86) 15866781826
Why Choose Us: ISO 9001-certified production, 24/7 technical support, and custom particle size optimization (5-50µm available).



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