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Trimethyl phosphonoacetate

Also known as: Methyl 2-(dimethoxyphosphoryl)acetate, Methyl (dimethoxyphosphoryl)acetate, Dimethyl methoxycarbonylmethylphosphonate, Dimethyl (methoxycarbonyl)methylphosphonate, Phosphonoacetic acid trimethyl ester, Methyl dimethylphosphonoacetate, Dimethylphosphonoacetic acid methyl ester, TMPA, Trimethyl phosphonacetate, Trimethyl phosphoroacetate, Dibenzyloxyphosphoiyl three Methyl acetate, Acetic acid, 2-(dimethoxyphosphinyl)-, methyl ester

Trimethyl phosphonoacetate (CAS 5927-18-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H11O5P and a molecular weight of 182.112 g/mol. Key properties include a boiling point of 311.0±0.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 109.7±42.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5927-18-4
Jingsj CID
J-42396-1
Molecular Formula
C5H11O5P
Molecular Weight
182.112 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point311.0±0.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point109.7±42.9 °C
Exact Mass182.034409
PSA71.64000
LogP-0.68
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.408

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 Trimethyl phosphonoacetate?

The CAS number of Trimethyl phosphonoacetate is 5927-18-4.

What are the molecular formula and molecular weight of Trimethyl phosphonoacetate?

Trimethyl phosphonoacetate has molecular formula C5H11O5P and molecular weight 182.112 g/mol.

What are the upstream and downstream products of Trimethyl phosphonoacetate?

For Trimethyl phosphonoacetate, Upstream Products: Methanol, Methyl bis(2,2,2-trifluoroethyl)phosphonoacetate, Dimethyl phosphonate; Downstream Products: 2-Hydroxy-4-(trifluoromethyl)pyridine, Benzyl Dimethylphosphonoacetate, (2E,4S)-4-[(tert-butoxycarbonyl)amino]pent-2-enoic acid.

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

Last updated:

How to cite: Jingsj. "Trimethyl phosphonoacetate (CAS 5927-18-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-42396-1 (accessed 2026-11-09).

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