Ethyldiphenylphosphinate

二苯基次膦酸乙酯

Also known as: Diphenylphosphinic acid ethyl ester, Ethyl bis(phenyl)phosphinate, Phosphinic acid, P,P-diphenyl-, ethyl ester, ethoxydiphenylphosphine oxide, [ethoxy(phenyl)phosphoryl]benzene

Ethyldiphenylphosphinate (CAS 1733-55-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C14H15O2P and a molecular weight of 246.24100 g/mol. It is also known as Diphenylphosphinic acid ethyl ester, Ethyl bis(phenyl)phosphinate and Phosphinic acid, P,P-diphenyl-, ethyl ester. Key properties include a boiling point of 348.8ºC at 760mmHg, a density of 1.14g/cm3 and a flash point of 178.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1733-55-7
Jingsj CID
J-32600-1
Molecular Formula
C14H15O2P
Chinese Name
二苯基次膦酸乙酯
Molecular Weight
246.24100 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point348.8ºC at 760mmHg
Density1.14g/cm3
Flash Point178.5ºC

Frequently Asked Questions

What is the CAS number of Ethyldiphenylphosphinate?

The CAS number of Ethyldiphenylphosphinate is 1733-55-7.

What are the molecular formula and molecular weight of Ethyldiphenylphosphinate?

Ethyldiphenylphosphinate has molecular formula C14H15O2P and molecular weight 246.24100 g/mol.

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

Last updated:

How to cite: Jingsj. "Ethyldiphenylphosphinate (CAS 1733-55-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32600-1 (accessed 2026-10-22).

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