Phosphazene base P4-t-Bu tetrafluoroborate salt
Phosphazene base P4-t-Bu tetrafluoroborate salt (CAS: 181471-62-5) is a chemical compound with the formula C22H63N13P4 · BF4H and a molecular weight of 721.53. As a member of the phosphazene base family, it serves as a valuable reagent in chemical synthesis. Its robust basicity makes it suitable for specific organic transformations and as a catalyst in various research and development applications.
- IUPAC
- 1-tert-Butyl-4,4,4-tris(dimethylamino)-2,2-bis[tris(dimethylamino)-phosphoranylidenamino]-2λ5,4λ5-catenadi(phosphazenium) tetrafluoroborate salt

Organic Synthesis Reagent
This phosphazene base is employed as a potent non-nucleophilic base in challenging organic transformations. It facilitates reactions requiring strong basic conditions where other bases may be insufficient or lead to side reactions.
Catalysis
It can act as a catalyst in various organic reactions. Its unique structure and basic properties allow for efficient catalysis in specific synthetic pathways, contributing to improved yields and selectivity.
Research and Development
Used in academic and industrial research laboratories for exploring new synthetic methodologies and developing novel chemical entities. Its specialized nature makes it a target for investigations into advanced chemical processes.
| Molecular weight | 721.53 |
|---|---|
| Empirical formula | C22H63N13P4 · BF4H |
| Assay | ≥97.0% (NMR) |
| Melting point | 330-340 °C (dec.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
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 tetrafluoroborate salt used for?
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Phosphazene base P4-t-Bu tetrafluoroborate salt is primarily used as a potent non-nucleophilic base and catalyst in organic synthesis and research and development applications.
What is the CAS number and formula for Phosphazene base P4-t-Bu tetrafluoroborate salt?
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The CAS number is 181471-62-5 and the formula is C22H63N13P4 · BF4H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Phosphazene base P4-t-Bu tetrafluoroborate salt with a purity of ≥97.0% as determined by NMR. This is a technical/research grade, and TSS does not represent it as USP, BP, or EP grade.
How should Phosphazene base P4-t-Bu tetrafluoroborate salt be handled?
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Handle Phosphazene base P4-t-Bu tetrafluoroborate salt with appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, and gloves. Avoid breathing dust and ensure adequate ventilation as it may cause skin irritation, eye irritation, and respiratory irritation (H315, H319, H335).
How is this product packed, shipped, and exported?
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Tech Serve Solutions packs, ships, and exports chemicals in compliance with international regulations. Specific packaging details are available upon request for bulk or custom orders.
How can I request a sample or quote for Phosphazene base P4-t-Bu tetrafluoroborate salt?
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To request a sample or quote, please contact our sales team through the website or by phone, providing the product name and CAS number (181471-62-5).
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