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Benzofuran-3(2H)-one

Also known as: 3(2H)-Benzofuranone, 3-Coumaranone, Coumaran-3-one, 2,3-Dihydro-1-benzofuran-3-one, 1-Benzofuran-3(2H)-one, MFCD00051810

Benzofuran-3(2H)-one (CAS 7169-34-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H6O2 and a molecular weight of 134.13 g/mol. Key properties include a melting point of 101-103 °C, a boiling point of 249.6±20.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 118.9±15.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
7169-34-8
Jingsj CID
J-40679-1
Molecular Formula
C8H6O2
Molecular Weight
134.13 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point101-103 °C
Boiling Point249.6±20.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point118.9±15.3 °C
Exact Mass134.036774
PSA26.30000
LogP1.50
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.585

Customs & Trade Information

HS Code2932999099
Summary2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. 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 Benzofuran-3(2H)-one?

The CAS number of Benzofuran-3(2H)-one is 7169-34-8.

What are the molecular formula and molecular weight of Benzofuran-3(2H)-one?

Benzofuran-3(2H)-one has molecular formula C8H6O2 and molecular weight 134.13 g/mol.

What are the upstream and downstream products of Benzofuran-3(2H)-one?

For Benzofuran-3(2H)-one, Upstream Products: 2-(Carboxymethoxy)benzoic acid, 1,2-Benzenedimethanol, Phenol; Downstream Products: 2,3-dihydrobenzofuran-5-amine, 3-Acetoxybenzofuran, Benzofuran-3-carbaldehyde.

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

Last updated:

How to cite: Jingsj. "Benzofuran-3(2H)-one (CAS 7169-34-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-40679-1 (accessed 2026-11-09).

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