Cis-1,2,3,6-Tetrahydrophthalic Anhydride Cas 935-79-5

Table of Contents

• Product Overview
• Technical Specifications
• Key Applications
• Industry Case Studies
• Usage Guidelines
• Contact for Technical Consultation

Cis-1,2,3,6-Tetrahydrophthalic Anhydride (CAS 935-79-5)

A high-purity cyclic anhydride with exceptional reactivity, widely used as epoxy resin hardener and chemical intermediate. 2025 market data shows 6.8% CAGR growth in electronics encapsulation applications.

Technical Specifications & Comparative Analysis

Industrial Applications

Epoxy Resin Systems

Primary hardening agent for electrical-grade epoxy formulations (2025 global demand: 220,000 MT), enabling:

• CTI ≥600V (Comparative Tracking Index)
• Tg 120-150°C post-cure
• Low ionic content (<10 ppm Cl⁻)

Polymer Modification

Critical precursor for:

• Alkyd resins with improved weathering resistance
• Polyesterimide wire enamels (2025 market value: $3.2B)
• Flame-retardant plasticizers

Documented Success Cases

Case 1: High-Speed PCB Encapsulation

Client: Top 3 Asian Electronics Manufacturer (2024 Revenue: $18B)
Challenge: Achieve void-free encapsulation for 5G mmWave modules
Solution: THPA-based epoxy system with 0.12% shrinkage
Result: 98.7% production yield at 0.5μm linewidth

Case 2: Sustainable Coatings Development

Client: European Industrial Coatings Leader
Challenge: Reduce VOC emissions by 40% while maintaining chemical resistance
Solution: THPA-modified waterborne polyurethane
Result: 52% VOC reduction, 20% cost savings vs. conventional systems

Optimal Handling Protocols

Storage Conditions

• N₂ atmosphere storage recommended for >6 month shelf life
• Maintain below 30°C in original packaging

Reaction Parameters

Technical Consultation & Sample Requests

Contact our application engineers for:

• Custom formulation support
• Regulatory documentation (REACH, FDA 21 CFR)
• Bulk pricing (2025 Q3 rates available)

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