Phosphazene base P4-t-Bu solution
Phosphazene base P4-t-Bu solution (CAS: 111324-04-0, C22H63N13P4) is an exceptionally strong, non-ionic, nitrogen-based organic compound. It functions as a powerful base in various synthetic organic reactions. Supplied as a solution in hexane, this reagent is particularly noted for its high efficacy in deprotonation and other base-catalysed transformations, finding utility in complex chemical synthesis and research applications.
- IUPAC
- 1-tert-Butyl-4,4,4-tris(dimethylamino)-2,2-bis[tris(dimethylamino)-phosphoranylidenamino]-2λ5,4λ5-catenadi(phosphazene)

Strong Base for Organic Synthesis
Phosphazene base P4-t-Bu solution serves as a potent non-ionic organic base, ideal for deprotonation reactions where traditional inorganic bases may be unsuitable. Its strength facilitates challenging chemical transformations in organic synthesis.
Catalysis in Chemical Reactions
This phosphazene base can act as an effective catalyst in various organic reactions, promoting efficient product formation. Its unique structure allows for high reactivity and selectivity in specific catalytic cycles.
Research and Development
Utilised in academic and industrial research laboratories, P4-t-Bu solution is employed for exploring new synthetic methodologies and developing novel chemical compounds. It is a valuable tool for advanced chemical research.
| Molecular weight | 633.72 |
|---|---|
| Empirical formula | C22H63N13P4 |
| Density | 0.90 g/mL at 20 °C |
| Concentration | ~0.8 M in hexane |
| Application | Phosphazene Bases: a Family of Extremely Strong, Non-Ionic, Non-Charged Nitrogen–Bases |




Hazard statements
- H225Highly flammable liquid and vapour
- H304May be fatal if swallowed and enters airways
- H314Causes severe skin burns and eye damage
- H336May cause drowsiness or dizziness
- H361F
- H373May cause damage to organs through prolonged exposure
- H412Harmful to aquatic life with long-lasting effects
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P261Avoid breathing dust, fume, gas or vapours
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
- P301IF SWALLOWED
- P305IF IN EYES
| Protective equipment | Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | -26 °C / -14.8 °F |
| Transport (UN / ADR) | UN 2924 8(3) / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,C |
| Risk statements (R) | 11-34-48/20-52/53-62-65-67 |
| Safety statements (S) | 16-26-36/37/39-45-61-62 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Phosphazene base P4-t-Bu solution used for?
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Phosphazene base P4-t-Bu solution is primarily used as a very strong, non-ionic organic base in synthetic organic chemistry, for deprotonation reactions, and as a catalyst in various chemical transformations. It is also employed in research and development for exploring new synthetic pathways.
What are the CAS number and formula for Phosphazene base P4-t-Bu solution?
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The CAS number for Phosphazene base P4-t-Bu solution is 111324-04-0, and its empirical formula is C22H63N13P4.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Phosphazene base P4-t-Bu solution as approximately 0.8 M in hexane. TSS does not represent this product as USP, BP, or EP grade.
How should Phosphazene base P4-t-Bu solution be handled safely?
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Handling requires extreme caution due to its flammable liquid and vapour, potential to cause severe skin burns and eye damage, and possible respiratory irritation and harm to unborn child. Use appropriate personal protective equipment including a full-face respirator, chemical-resistant gloves, and eye protection in a well-ventilated area. Avoid ignition sources and handle with care to prevent exposure. Consult the Safety Data Sheet for full details.
Is Phosphazene base P4-t-Bu solution a controlled substance?
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The provided data does not indicate that Phosphazene base P4-t-Bu solution is a controlled substance.
How is Phosphazene base P4-t-Bu solution packed and shipped?
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Phosphazene base P4-t-Bu solution is classified under UN 2924, Hazard Class 8 (Corrosive), Subsidiary Hazard 3 (Flammable Liquid), Packing Group II. It is exported adhering to all relevant dangerous goods regulations.
How can I request a sample or quote for Phosphazene base P4-t-Bu solution?
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To request a sample or a quote, please contact our sales team through the enquiry form on our website or call us directly. Please specify the required quantity and your delivery location.
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