Dimethyl (3-(3-chlorophenoxy)-2-oxopropyl)phosphonate

Also known as: dimethyl 3-(3-chlorophenoxy)-2-oxopropylphosphonate, dimethyl [2-oxo-3-(3-chlorophenoxy)propyl]phosphonate, dimethyl [3-(3-chlorophenoxy)acetonyl]phosphonate, dimethyl[3-(m-chlorophenoxy)acetonyl]phosphonate, [3-(3-chlorophenoxy)-2-oxopropyl]phosphonic acid dimethyl ester, 1-(3-chlorophenoxy)-3-dimethoxyphosphorylpropan-2-one, dimethyl (3-(3-chlorophenoxy)-2-oxoprop-1-yl)phosphonate, Phosphonic acid, P-[3-(3-chlorophenoxy)-2-oxopropyl]-, dimethyl ester

Dimethyl (3-(3-chlorophenoxy)-2-oxopropyl)phosphonate (CAS 40665-94-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H14ClO5P and a molecular weight of 292.653 g/mol. Key properties include a boiling point of 400.1±30.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 303.5±32.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 40665-94-9
Jingsj CID: J-1510435-5
Molecular Formula: C₁₁H₁₄ClO₅P
Molecular Weight: 292.653 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	400.1±30.0 °C at 760 mmHg
Density	1.3±0.1 g/cm3
Flash Point	303.5±32.2 °C
Exact Mass	292.026733
PSA	71.64000
LogP	1.90
Vapor Pressure	0.0±0.9 mmHg at 25°C
Refractive Index	1.504

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 Dimethyl (3-(3-chlorophenoxy)-2-oxopropyl)phosphonate?

The CAS number of Dimethyl (3-(3-chlorophenoxy)-2-oxopropyl)phosphonate is 40665-94-9.

What are the molecular formula and molecular weight of Dimethyl (3-(3-chlorophenoxy)-2-oxopropyl)phosphonate?

Dimethyl (3-(3-chlorophenoxy)-2-oxopropyl)phosphonate has molecular formula C11H14ClO5P and molecular weight 292.653 g/mol.

What are the upstream and downstream products of Dimethyl (3-(3-chlorophenoxy)-2-oxopropyl)phosphonate?

For Dimethyl (3-(3-chlorophenoxy)-2-oxopropyl)phosphonate, Upstream Products: Ethyl 2-(3-chlorophenoxy)acetate, Dimethyl methylphosphonate, 3-Chlorophenol; Downstream Products: (3aR,4R,5R,6aS)-4-[(1E)-4-(3-chlorophenoxy)-3-oxo-1-buten-1-yl]-2-oxohexahydro-2H-cyclopenta[b]furan-5-yl 4-biphenylcarboxylate.

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. "Dimethyl (3-(3-chlorophenoxy)-2-oxopropyl)phosphonate (CAS 40665-94-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1510435-5 (accessed 2026-11-09).

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