Date published: 2026-3-29

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Phosphazene base P4-t-Bu solution (CAS 111324-04-0)

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Alternate Names:
Schwesinger P4 Base; Phosphazene base P(4)-T-bu solution
Application:
Phosphazene base P4-t-Bu solution is a strong, hindered, neutral nitrogen base
CAS Number:
111324-04-0
Molecular Weight:
633.72
Molecular Formula:
C22H63N13P4
Supplemental Information:
This is as a Dangerous Good for transport and may be subject to additional shipping charges.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Phosphazene base P4-t-Bu solution (TB-P4) is an extremely strong, hindered, neutral nitrogen base approximately 1018 times more basic than DBU [pKa (DMSO) 30.25]. It is stable to hydrolysis and unaffected by alkylating agents. It acts as a base for enolate formation and stereoselective alkylation. Phosphazene base P4-t-Bu solution can be used as a precursor in the synthesis of organic compounds, as a solvent, and as an intermediate in the production of polymers. It may act to be an effective inhibitor of the enzyme cyclooxygenase, which is involved in the production of prostaglandins. It also exhibits analgesic effects and modulates the activity of certain neurotransmitters.


Phosphazene base P4-t-Bu solution (CAS 111324-04-0) References

  1. Dynamic Surfaces-Degradable Polyester Networks that Resist Protein Adsorption.  |  Mu, G., et al. 2021. Langmuir. 37: 8978-8988. PMID: 34297579
  2. Recent Advances of Poly(ester amide)s-Based Biomaterials.  |  Han, S. and Wu, J. 2022. Biomacromolecules. 23: 1892-1919. PMID: 35435654

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Phosphazene base P4-t-Bu solution, 1 ml

sc-258013
1 ml
$148.00

Phosphazene base P4-t-Bu solution, 5 ml

sc-258013A
5 ml
$460.00

Phosphazene base P4-t-Bu solution, 25 ml

sc-258013B
25 ml
$1775.00