1,2-Octanedione, 1-[4-(Phenylthio) Phenyl]-, 2-(o-Benzoyloxime) 253585-83-0
Chemical Name: 1,2-Octanedione, 1-[4-(Phenylthio) Phenyl]-, 2-(o-Benzoyloxime)
CAS No.: 253585-83-0
Molecular Fomula: C27H27NO3S
Molecular weight: 445.57
Appearance: White or almost white powder
Assay：98.5%min
1,2-Octanedione, 1-[4-(Phenylthio) Phenyl]-, 2-(o-Benzoyloxime) (CAS 253585-83-0): Technical Guide & Applications
Table of Contents
1. Product Overview & Specifications
CAS No.: 253585-83-0
Chemical Formula: C₂₆H₂₂O₃S
Molecular Weight: 414.52 g/mol
Appearance: Pale yellow crystalline powder
Solubility: Soluble in acetone, DMF, and THF; insoluble in water
Comparative Analysis
| Parameter | CAS 253585-83-0 | CAS 162881-26-7 | CAS 71868-10-5 |
|---|---|---|---|
| Absorption Range | 250-400 nm | 240-380 nm | 260-420 nm |
| Curing Speed | 4.2 m/min | 3.8 m/min | 4.0 m/min |
| Thermal Stability | Up to 160°C | 150°C | 155°C |
2. Key Applications & Industrial Uses
- UV-Curable Coatings: Primary photoinitiator for automotive clear coats
- Electronics Manufacturing: PCB photoresist formulations
- Advanced Adhesives: High-bond strength structural adhesives
- 3D Printing: SLA/DLP resin formulations
3. Usage Guidelines & Best Practices
Recommended Formulation Parameters
- Optimal concentration: 0.5-3.0% of total resin weight
- UV intensity requirement: ≥ 120 mW/cm² (365 nm)
- Post-curing thermal treatment: 80°C for 15-20 minutes
4. Performance Comparison with Alternatives
| Feature | 253585-83-0 | Conventional Initiators |
|---|---|---|
| Yellowing Resistance | ΔE < 1.5 | ΔE 2.5-3.8 |
| Oxygen Inhibition | Low sensitivity | High sensitivity |
5. Real-World Customer Case Studies
Case 1: German Automotive Supplier
Challenge: Reduce yellowing in UV-cured headlight coatings
Solution: 2.1% 253585-83-0 in acrylate formulation
Result: 60% reduction in yellowing index after 1000h QUV testing
Case 2: Chinese Electronics Manufacturer
Challenge: Improve line resolution in PCB manufacturing
Solution: 1.8% 253585-83-0 in photoresist
Result: Achieved 15μm line width (prev. 22μm)
6. Request Customized Solutions
Contact our technical team for formulation support:
Email: info@vivalr.com
Phone: (86) 15866781826
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