2,2'-Ethylidenebis(4,6-di-tert-butylphenyl) fluorophosphite

2,2′-亚乙基双(4,6-二叔丁基苯基)氟亚磷酸酯

Also known as: 12H-Dibenzo[d,g][1,3,2]dioxaphosphocin, 2,4,8,10-tetrakis(1,1-dimethylethyl)-6-fluoro-12-methyl-, 2,2'-Ethylidenebis(4,6-di-tert-butylphenyl) fluorophosphonite, 2,2'-Ethylidenebis(4,6-di-tert-butylphenyl) phosphorofluoridite, Ethanox 398, X 398, CL089, MFCD00075557

2,2'-Ethylidenebis(4,6-di-tert-butylphenyl) fluorophosphite (CAS 118337-09-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C30H44FO2P and a molecular weight of 486.64100 g/mol. It is also known as 12H-Dibenzo[d,g][1,3,2]dioxaphosphocin, 2,4,8,10-tetrakis(1,1-dimethylethyl)-6-fluoro-12-methyl-, 2,2'-Ethylidenebis(4,6-di-tert-butylphenyl) fluorophosphonite and 2,2'-Ethylidenebis(4,6-di-tert-butylphenyl) phosphorofluoridite. Key properties include a melting point of 201-203ºC(lit.), a boiling point of 451.2ºC at 760mmHg and a flash point of 226.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
118337-09-0
Jingsj CID
J-37317-1
Molecular Formula
C30H44FO2P
Chinese Name
2,2′-亚乙基双(4,6-二叔丁基苯基)氟亚磷酸酯
Molecular Weight
486.64100 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point201-203ºC(lit.)
Boiling Point451.2ºC at 760mmHg
Flash Point226.7ºC

Frequently Asked Questions

What is the CAS number of 2,2'-Ethylidenebis(4,6-di-tert-butylphenyl) fluorophosphite?

The CAS number of 2,2'-Ethylidenebis(4,6-di-tert-butylphenyl) fluorophosphite is 118337-09-0.

What are the molecular formula and molecular weight of 2,2'-Ethylidenebis(4,6-di-tert-butylphenyl) fluorophosphite?

2,2'-Ethylidenebis(4,6-di-tert-butylphenyl) fluorophosphite has molecular formula C30H44FO2P and molecular weight 486.64100 g/mol.

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

Last updated:

How to cite: Jingsj. "2,2'-Ethylidenebis(4,6-di-tert-butylphenyl) fluorophosphite (CAS 118337-09-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-37317-1 (accessed 2026-10-24).

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