Diethyl (4-fluorobenzyl)phosphonate

Also known as: (4-fluorobenzyl)phosphonic acid diethyl ester, Diethyl (p-fluorophenyl)methanephosphonate, 1-(diethoxyphosphorylmethyl)-4-fluorobenzene, Diethyl 4-fluorobenzylphosphonate, ethyl 4-fluorobenzylphosphonate, Phosphonic acid, [(4-fluorophenyl)methyl]-, diethyl ester, [(4-Fluorophenyl)methyl]phosphonic acid diethyl ester

Diethyl (4-fluorobenzyl)phosphonate (CAS 63909-58-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H16FO3P and a molecular weight of 246.21500 g/mol. Key properties include a boiling point of 150ºC / 6mmHg, a density of 1.16 and a flash point of 152.453ºC. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.: 63909-58-0
Jingsj CID: J-1994248-4
Molecular Formula: C₁₁H₁₆FO₃P
Molecular Weight: 246.21500 g/mol
Category: Organic Acids
Last updated: 11/3/2026

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Physicochemical Properties

Boiling Point	150ºC / 6mmHg
Density	1.16
Flash Point	152.453ºC
Exact Mass	246.08200
PSA	45.34000
LogP	3.59180
Refractive Index	1.476

Customs & Trade Information

HS Code	2931900090
Summary	2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Diethyl (4-fluorobenzyl)phosphonate?

The CAS number of Diethyl (4-fluorobenzyl)phosphonate is 63909-58-0.

What are the molecular formula and molecular weight of Diethyl (4-fluorobenzyl)phosphonate?

Diethyl (4-fluorobenzyl)phosphonate has molecular formula C11H16FO3P and molecular weight 246.21500 g/mol.

What are the upstream and downstream products of Diethyl (4-fluorobenzyl)phosphonate?

For Diethyl (4-fluorobenzyl)phosphonate, Upstream Products: 4-Fluorobenzyl bromide, Triethyl phosphite, Diethyl (2-oxopropyl)phosphonate; Downstream Products: 4-(4-Fluorobenzyl)piperidine.

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

Last updated: 11/3/2026

How to cite: Jingsj. "Diethyl (4-fluorobenzyl)phosphonate (CAS 63909-58-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1994248-4 (accessed 2026-11-09).

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