Methyl 2-oxo-2H-cyclohepta[b]furan-3-carboxylate

Also known as: 3-(Methoxycarbonyl)-2H-cyclohepta[b]furan-2-one, 2H-Cyclohepta[b]furan-3-carboxylic acid, 2-oxo-, methyl ester, 2-oxo-3-cyclohepta[b]furancarboxylic acid methyl ester, 2H-3-Methoxycarbonylcyclohepta[b]furan-2-one, Methyl 2-oxocyclohepta[b]furan-3-carboxylate

Methyl 2-oxo-2H-cyclohepta[b]furan-3-carboxylate (CAS 50603-71-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H8O4 and a molecular weight of 204.179 g/mol. Key properties include a melting point of 173ºC, a boiling point of 480.7±28.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 262.7±22.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 50603-71-9
Jingsj CID: J-1523699-4
Molecular Formula: C₁₁H₈O₄
Molecular Weight: 204.179 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	173ºC
Boiling Point	480.7±28.0 °C at 760 mmHg
Density	1.3±0.1 g/cm3
Flash Point	262.7±22.4 °C
Exact Mass	204.042252
PSA	56.51000
LogP	-0.02
Vapor Pressure	0.0±1.2 mmHg at 25°C
Refractive Index	1.591

Customs & Trade Information

HS Code	2932209090
Summary	2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of Methyl 2-oxo-2H-cyclohepta[b]furan-3-carboxylate?

The CAS number of Methyl 2-oxo-2H-cyclohepta[b]furan-3-carboxylate is 50603-71-9.

What are the molecular formula and molecular weight of Methyl 2-oxo-2H-cyclohepta[b]furan-3-carboxylate?

Methyl 2-oxo-2H-cyclohepta[b]furan-3-carboxylate has molecular formula C11H8O4 and molecular weight 204.179 g/mol.

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. "Methyl 2-oxo-2H-cyclohepta[b]furan-3-carboxylate (CAS 50603-71-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1523699-4 (accessed 2026-11-09).

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