3-(4-Methylbenzylidene)camphor Cas 36861-47-9

Table of Contents

• Product Overview
• Specification Comparison
• Key Applications
• Usage Guidelines
• Industry Case Studies
• Contact for Quotation

3-(4-Methylbenzylidene)camphor (CAS 36861-47-9) Overview

Basic Parameters

Specification Comparison

Key Industrial Applications

1. UV Absorber in Sunscreen

Effective in absorbing UV-B radiation (280-320 nm) with molar extinction coefficient ε=12,900 L·mol⁻¹·cm⁻¹. Compatible with octocrylene and avobenzone in SPF formulations.

2. Photostabilizer in Polymers

Enhances PVC stability by reducing degradation rate from 0.25%/hr to 0.08%/hr under accelerated weathering tests (QUV 340nm).

3. Pharmaceutical Intermediate

Used in synthesis of COX-2 inhibitors, showing 89% yield improvement over traditional catalysts in pilot batch production.

Usage Guidelines

Formulation Recommendations

1. Optimal concentration: 2-4% in cosmetic formulations
2. Pre-disperse in ethanol (1:3 ratio) before adding to oil phase
3. Maintain processing temperature below 75°C
4. Combine with 0.5% vitamin E acetate for enhanced stability

Industry Case Studies

Case 1: European Sunscreen Manufacturer

Case 2: US Pharmaceutical Company

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