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Diethyl (diphenylmethyl)phosphonate

Also known as: Diethyl benzhydrylphosphonate, Benzhydrylphosphonic acid diethyl ester, (Diphenylmethyl)phosphonic acid diethyl ester, Diethyl 1,1-diphenylmethylphosphonate, Phosphonic acid, P-(diphenylmethyl)-, diethyl ester

Diethyl (diphenylmethyl)phosphonate (CAS 27329-60-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C17H21O3P and a molecular weight of 304.321 g/mol. Key properties include a boiling point of 421.5±34.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 222.1±46.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
27329-60-8
Jingsj CID
J-1398997-4
Molecular Formula
C17H21O3P
Molecular Weight
304.321 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point421.5±34.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point222.1±46.0 °C
Exact Mass304.122833
PSA45.34000
LogP3.79
Vapor Pressure0.0±1.0 mmHg at 25°C
Refractive Index1.532

Customs & Trade Information

HS Code2919900090
Summary2919900090 other phosphoric esters and their salts, including lactophosphates; their halogenated, sulphonated, nitrated or nitrosated derivatives。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。VAT:17.0%。tax rebate rate:9.0%。MFN tariff:6.5%。general tariff:30.0%

Frequently Asked Questions

What is the CAS number of Diethyl (diphenylmethyl)phosphonate?

The CAS number of Diethyl (diphenylmethyl)phosphonate is 27329-60-8.

What are the molecular formula and molecular weight of Diethyl (diphenylmethyl)phosphonate?

Diethyl (diphenylmethyl)phosphonate has molecular formula C17H21O3P and molecular weight 304.321 g/mol.

What are the upstream and downstream products of Diethyl (diphenylmethyl)phosphonate?

For Diethyl (diphenylmethyl)phosphonate, Upstream Products: Diethyl phosphite, Benzhydrol, Triethyl phosphite; Downstream Products: 2-(4-Bromophenyl)-1,1-diphenylethylene.

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

Last updated:

How to cite: Jingsj. "Diethyl (diphenylmethyl)phosphonate (CAS 27329-60-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1398997-4 (accessed 2026-11-09).

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