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5,7-Dibromo-2,3-dihydrobenzofuran

Also known as: 5,7-DIBROMO-2,3-DIHYDRO-1-BENZOFURAN, 5,7-DIBROMO-2,3-DIHYDROBENZOFURAN, 5,7-DIBROMO-2,3-DIHYDROBENZO[B]FURAN, 5,7-DIBROMOCOUMARAN, 5,7-Dibromo-2,3-dihydrobenzo[b]furan, 5,7-Dibromo-2,3-dihydrobenzofuran, Benzofuran, 5,7-dibromo-2,3-dihydro-, 5,7-Dibromocoumaran

5,7-Dibromo-2,3-dihydrobenzofuran (CAS 123266-59-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H6Br2O and a molecular weight of 277.941 g/mol. Key properties include a melting point of 34-36ºC, a boiling point of 307.1±42.0 °C at 760 mmHg, a density of 2.0±0.1 g/cm3 and a flash point of 123.6±26.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
123266-59-1
Jingsj CID
J-22449-7
Molecular Formula
C8H6Br2O
Molecular Weight
277.941 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point34-36ºC
Boiling Point307.1±42.0 °C at 760 mmHg
Density2.0±0.1 g/cm3
Flash Point123.6±26.4 °C
Exact Mass275.878540
PSA9.23000
LogP3.70
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.635

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 5,7-Dibromo-2,3-dihydrobenzofuran?

The CAS number of 5,7-Dibromo-2,3-dihydrobenzofuran is 123266-59-1.

What are the molecular formula and molecular weight of 5,7-Dibromo-2,3-dihydrobenzofuran?

5,7-Dibromo-2,3-dihydrobenzofuran has molecular formula C8H6Br2O and molecular weight 277.941 g/mol.

What are the upstream and downstream products of 5,7-Dibromo-2,3-dihydrobenzofuran?

For 5,7-Dibromo-2,3-dihydrobenzofuran, Upstream Products: 2,3-Dihydrobenzofuran; Downstream Products: 5-bromo-2,3-dihydrobenzo[b]furan-7-carbonyl chloride, 5-bromo-2,3-dihydro-1-benzofuran-7-carboxylic acid, 5-Bromo-2,3-dihydro-1-benzofuran-7-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. "5,7-Dibromo-2,3-dihydrobenzofuran (CAS 123266-59-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-22449-7 (accessed 2026-11-09).

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