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Phosphazene base P1-t-Bu-tris(tetramethylene)

Also known as: 2-methyl-N-(tri(pyrrolidin-1-yl)phosphoranylidene)propan-2-amine, tert-butylimino(tripyrrolidin-1-yl)-λ5-phosphane, (tert-Butylimino)tris(pyrrolidino)phosphorane, BTPP, BTTP

Phosphazene base P1-t-Bu-tris(tetramethylene) (CAS 161118-67-8) is a compound in the Nitrogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C16H33N4P and a molecular weight of 312.43400 g/mol. Key properties include a melting point of -24ºC(lit.), a boiling point of 119-122ºC0.1mmHg(lit.), a density of 1.022 and a flash point of 199.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
161118-67-8
Jingsj CID
J-14127-5
Molecular Formula
C16H33N4P
Molecular Weight
312.43400 g/mol
Category
Nitrogen Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point-24ºC(lit.)
Boiling Point119-122ºC0.1mmHg(lit.)
Density1.022
Flash Point199.8ºC
Exact Mass312.24400
PSA31.89000
LogP3.83220
Vapor Pressure7.92E-07mmHg at 25°C
Refractive Index1.509

Customs & Trade Information

HS Code2933990090
Summary2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of Phosphazene base P1-t-Bu-tris(tetramethylene)?

The CAS number of Phosphazene base P1-t-Bu-tris(tetramethylene) is 161118-67-8.

What are the molecular formula and molecular weight of Phosphazene base P1-t-Bu-tris(tetramethylene)?

Phosphazene base P1-t-Bu-tris(tetramethylene) has molecular formula C16H33N4P and molecular weight 312.43400 g/mol.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Phosphazene base P1-t-Bu-tris(tetramethylene) (CAS 161118-67-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-14127-5 (accessed 2026-11-06).

Data for reference only; verify product details with suppliers before purchase.