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Diethyl (2-oxoethyl)phosphonate

Also known as: DIETHYL (FORMYLMETHYL)PHOSPHONATE, 2-Oxoethylphosphonic acid diethyl ester, (2-Oxoethyl)phosphonic acid diethyl ester, 2-diethoxyphosphorylacetaldehyde, 2-diethoxyphosphoryl-acetaldehyde, 2-diethoxyphosphorylethanal, Phosphonic acid, P-(2-oxoethyl)-, diethyl ester, diethyl 2-oxoethylphosphonate, phosphonoacetaldehyde diethyl ester

Diethyl (2-oxoethyl)phosphonate (CAS 1606-75-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H13O4P and a molecular weight of 180.139 g/mol. Key properties include a boiling point of 240.6±23.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 113.4±42.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1606-75-3
Jingsj CID
J-1094024-6
Molecular Formula
C6H13O4P
Molecular Weight
180.139 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point240.6±23.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point113.4±42.9 °C
Exact Mass180.055145
PSA62.41000
LogP0.05
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.414

Customs & Trade Information

HS Code2931900090
Summary2931900090. 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 (2-oxoethyl)phosphonate?

The CAS number of Diethyl (2-oxoethyl)phosphonate is 1606-75-3.

What are the molecular formula and molecular weight of Diethyl (2-oxoethyl)phosphonate?

Diethyl (2-oxoethyl)phosphonate has molecular formula C6H13O4P and molecular weight 180.139 g/mol.

What are the upstream and downstream products of Diethyl (2-oxoethyl)phosphonate?

For Diethyl (2-oxoethyl)phosphonate, Upstream Products: Diethyl 2,2-diethoxyethylphosphonate, 2-(Bromomethyl)-1,3-dioxolane, Triethyl phosphite; Downstream Products: diethyl [2-(cyclohexylamino)ethenyl]phosphonate, tetraethyl ethylenediphosphonate, Diethyl (2-oxopropyl)phosphonate.

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 (2-oxoethyl)phosphonate (CAS 1606-75-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1094024-6 (accessed 2026-11-09).

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