1. Product Overview & Specifications

Chemical Name: 3,3′-Sulfonyldianiline
CAS Number: 599-61-1
Molecular Formula: C₁₂H₁₂N₂O₂S
Molecular Weight: 264.3 g/mol
Appearance: White to pale yellow crystalline powder
Melting Point: 120-124°C
Solubility: Soluble in DMF, DMSO; slightly soluble in water

Comparative Analysis

2. Key Applications & Use Cases

Core Applications:

• Polymer Intermediate: Critical for high-performance polyimides and epoxy resins
• Thermoset Curing Agent: Enables precise crosslinking in aerospace composites
• Pharmaceutical Synthesis: Key intermediate for antitumor agents and kinase inhibitors
• Liquid Crystal Polymers: Enhances thermal stability in display technologies

3. Step-by-Step Usage Examples

Example 1: Epoxy Resin Formulation

1. Mix 3,3′-Sulfonyldianiline (10-15% w/w) with DGEBA epoxy resin
2. Stir at 80°C for 30 minutes under nitrogen atmosphere
3. Cure at 150°C for 2 hours followed by 180°C post-cure

Example 2: Polyimide Synthesis

1. React with pyromellitic dianhydride in NMP solvent
2. Maintain stoichiometric ratio (1:1) at 50°C for 6 hours
3. Imidize at 300°C under vacuum to achieve 95% conversion

4. Real-World Customer Case Studies

Case Study 1: Aerospace Composite Manufacturer

Client: Top 3 global aerospace materials supplier
Challenge: Required curing agent with 320°C+ stability
Solution: Custom 3,3′-Sulfonyldianiline formulation
Result: 22% weight reduction in engine components

Case Study 2: OLED Display Producer

Client: Leading Korean electronics firm
Challenge: Needed LC polymer with <0.5% thermal degradation
Solution: Optimized purification protocol (99.8% purity)
Result: Extended display lifespan by 40%

5. Request Technical Specifications

Contact our chemical engineering team for:
– Batch-specific COA
– Custom synthesis options
– Regulatory support documentation

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