Hexaethyl tetraphosphate

四磷酸六乙酯

Also known as: Ethyl tetraphosphate, Tetraphosphoric acid, hexaethyl ester, HETP, HET, Bladan, RCRA waste number P062, diethoxyphosphoryl [diethoxyphosphoryloxy(ethoxy)phosphoryl] ethyl phosphate, EINECS 212-057-0

Hexaethyl tetraphosphate (CAS 757-58-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H30O13P4 and a molecular weight of 506.25400 g/mol. It is also known as Ethyl tetraphosphate, Tetraphosphoric acid, hexaethyl ester and HETP. Key properties include a melting point of -90ºC, a density of 1.26~1.28(25/4ºC ) and a flash point of 249.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
757-58-4
Jingsj CID
J-1366042-2
Molecular Formula
C12H30O13P4
Chinese Name
四磷酸六乙酯
Molecular Weight
506.25400 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point-90ºC
Density1.26~1.28(25/4ºC )
Flash Point249.5ºC

Frequently Asked Questions

What is the CAS number of Hexaethyl tetraphosphate?

The CAS number of Hexaethyl tetraphosphate is 757-58-4.

What are the molecular formula and molecular weight of Hexaethyl tetraphosphate?

Hexaethyl tetraphosphate has molecular formula C12H30O13P4 and molecular weight 506.25400 g/mol.

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

Last updated:

How to cite: Jingsj. "Hexaethyl tetraphosphate (CAS 757-58-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1366042-2 (accessed 2026-10-26).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.