4-Bromo-5-ethoxy-2(5H)-furanone

Also known as: 2(5H)-FURANONE,4-BROMO-5-ETHOXY-, 2(5H)-Furanone, 4-bromo-5-ethoxy-, 3-bromo-2-ethoxy-2H-furan-5-one, 4-Bromo-5-ethoxyfuran-2(5H)-one, 4-bromo-5-ethoxy-5H-furan-2-one

4-Bromo-5-ethoxy-2(5H)-furanone (CAS 32978-38-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H7BrO3 and a molecular weight of 207.022 g/mol. Key properties include a boiling point of 298.7±40.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 134.4±27.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 32978-38-4
Jingsj CID: J-1501139-9
Molecular Formula: C₆H₇BrO₃
Molecular Weight: 207.022 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	298.7±40.0 °C at 760 mmHg
Density	1.6±0.1 g/cm3
Flash Point	134.4±27.3 °C
Exact Mass	205.957855
PSA	35.53000
LogP	0.32
Vapor Pressure	0.0±0.6 mmHg at 25°C
Refractive Index	1.526

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 4-Bromo-5-ethoxy-2(5H)-furanone?

The CAS number of 4-Bromo-5-ethoxy-2(5H)-furanone is 32978-38-4.

What are the molecular formula and molecular weight of 4-Bromo-5-ethoxy-2(5H)-furanone?

4-Bromo-5-ethoxy-2(5H)-furanone has molecular formula C6H7BrO3 and molecular weight 207.022 g/mol.

What are the upstream and downstream products of 4-Bromo-5-ethoxy-2(5H)-furanone?

For 4-Bromo-5-ethoxy-2(5H)-furanone, Upstream Products: 5-Ethoxyfuran-2(5H)-one, Ruthenium.

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. "4-Bromo-5-ethoxy-2(5H)-furanone (CAS 32978-38-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1501139-9 (accessed 2026-11-09).

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