Benzophenone-2 cas 131-55-5

Chemical Name: Benzophenone‐2
CAS No.: 131‐55‐5
Molecular Formula: C13H10O5
Molecular Weight:246.22
Appearance:Pale greenish yellow crystallinepowder
Assay: 99%

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Benzophenone-2 (CAS 131-55-5): Comprehensive Product Guide

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.com
Tel: (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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