5-Acetyl-2,3-dihydrobenzo[b]furan

Also known as: 1-(2,3-dihydro-1-benzofuran-5-yl)ethanone, 1-(2,3-dihydro-5-benzofuranyl)ethanone, 5-acetyl-2,3-dihydrobenzofuran, 5-acetylcoumaran, Ethanone, 1-(2,3-dihydro-5-benzofuranyl)-, MFCD00068033, BUTTPARK 92\04-30

5-Acetyl-2,3-dihydrobenzo[b]furan (CAS 90843-31-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H10O2 and a molecular weight of 162.185 g/mol. Key properties include a melting point of 56-59°C, a boiling point of 308.6±31.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 149.3±18.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 90843-31-5
Jingsj CID: J-11724-8
Molecular Formula: C₁₀H₁₀O₂
Molecular Weight: 162.185 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	56-59°C
Boiling Point	308.6±31.0 °C at 760 mmHg
Density	1.1±0.1 g/cm3
Flash Point	149.3±18.4 °C
Exact Mass	162.068085
PSA	26.30000
LogP	1.75
Vapor Pressure	0.0±0.7 mmHg at 25°C
Refractive Index	1.557

Customs & Trade Information

HS Code	2932999099
Summary	2932999099. 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-Acetyl-2,3-dihydrobenzo[b]furan?

The CAS number of 5-Acetyl-2,3-dihydrobenzo[b]furan is 90843-31-5.

What are the molecular formula and molecular weight of 5-Acetyl-2,3-dihydrobenzo[b]furan?

5-Acetyl-2,3-dihydrobenzo[b]furan has molecular formula C10H10O2 and molecular weight 162.185 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. "5-Acetyl-2,3-dihydrobenzo[b]furan (CAS 90843-31-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-11724-8 (accessed 2026-11-09).

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