Diethyl (4-methylphenyl)phosphonate

Also known as: p-Tolylphosphonic acid diethyl ester, Diethyl p-tolylphosphonate, Phosphonic acid, P-(4-methylphenyl)-, diethyl ester, 4-Methylphenylphosphonic acid diethyl ester, CHEMPACIFIC 60155

Diethyl (4-methylphenyl)phosphonate (CAS 1754-46-7) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C11H17O3P and a molecular weight of 228.22500 g/mol. Key properties include a boiling point of 298.2ºC at 760 mmHg, a density of 1.08g/cm3 and a flash point of 148.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 1754-46-7
Jingsj CID: J-1046042-1
Molecular Formula: C₁₁H₁₇O₃P
Molecular Weight: 228.22500 g/mol
Category: Solvents
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	298.2ºC at 760 mmHg
Density	1.08g/cm3
Flash Point	148.1ºC
Exact Mass	228.09200
PSA	45.34000
LogP	2.88640
Vapor Pressure	0.00228mmHg at 25°C
Refractive Index	1.483

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-methylphenyl)phosphonate?

The CAS number of Diethyl (4-methylphenyl)phosphonate is 1754-46-7.

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

Diethyl (4-methylphenyl)phosphonate has molecular formula C11H17O3P and molecular weight 228.22500 g/mol.

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

For Diethyl (4-methylphenyl)phosphonate, Upstream Products: 4-Bromotoluene, Diethyl phosphite, 4-Iodotoluene; Downstream Products: p-Tolylphosphonic acid.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Diethyl (4-methylphenyl)phosphonate (CAS 1754-46-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1046042-1 (accessed 2026-11-09).

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