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IOTA R06 (Triphenylsilanol) is an important organosilicon intermediate in the form of white granular crystals. The reactive hydroxyl group in its molecular structure provides versatile chemical reactivity, enabling its use as an end-capper, molecular weight regulator, and organic reaction protector in polymer synthesis, pharmaceutical intermediates, and electronic chemicals.
| Parameter | Specification |
|---|---|
| CAS No. | 791-31-1 |
| Physical form (20°C) | White granular crystals |
| Purity | >99.2% |
| Melting point | 154–156°C |
| Bulk density (20°C) | ~0.63 g/cm³ |
| Flash point (closed cup) | 188.8°C |
| Halogen content | <50 ppm |
| PCBs & PAHs | None |
✅ High purity (>99.2%) – exceptional batch-to-batch consistency for demanding synthesis
✅ White granular crystal form – easy to weigh, transfer, and feed
✅ Low halogen content (<50 ppm) – meets stringent purity requirements for electronic applications
✅ Free from PCBs and PAHs – safe and environmentally compliant
✅ Reactive hydroxyl group – participates in condensation, esterification, and various reactions
✅ Good thermal stability – melting point 154–156°C, high flash point for safe handling
1. End-Capper & Molecular Weight Regulator in Polymer Synthesis
Used for chain termination in polysiloxane and other polymer synthesis, precisely controlling molecular weight and improving polymer properties.
2. Pharmaceutical Intermediate Synthesis
Functions as an organic reaction protector for synthesizing various pharmaceutical intermediates.
3. Electronic Materials & PCB
Used as a thermal cationic curing catalyst in resin synthesis for low-dielectric, low-water-absorption printed circuit board materials.
4. Flame Retardant Materials
Applied in the synthesis of flame-retardant aromatic polycarbonate blends meeting UL94 V-0 rating, enhancing thermal and flame-retardant performance.
5. Silicone Ether Derivative Synthesis
Undergoes condensation with electrophiles such as acyl chlorides and acetic anhydride under basic conditions to form corresponding ester derivatives.
The chemical reactivity of triphenylsilanol is primarily centered on its hydroxyl group:
Condensation reactions: Reacts with acyl chlorides, acetic anhydride, etc., under basic conditions to form ester derivatives
Deoxyfluorination: Can undergo deoxyfluorination with fluorinating reagents
Pd-catalyzed reactions: Acts as a water surrogate in regioselective Pd-catalyzed allylations
✅ High purity (>99.2%) – reliable and consistent quality
✅ Granular crystal form – easy handling
✅ Low halogen, free from PCBs/PAHs – safe and environmentally compliant
✅ Reactive hydroxyl group – flexible reaction design
✅ Versatile applications – polymers, pharmaceuticals, electronics, flame retardants
✅ Excellent batch consistency – supports large-scale production
