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2,3-Dihydrobenzofuran-5-carbaldehyde

Also known as: 2,3-Dihydro-1-benzofuran-5-carbaldehyde, 2,3-Dihydrobenzo[b]furan-5-carbaldehyde, 5-Benzofurancarboxaldehyde, 2,3-dihydro-, 2,3-Dihydrobenzo[b]furan-5-carboxaldehyde, AKOS MSC-0772, MFCD00068058

2,3-Dihydrobenzofuran-5-carbaldehyde (CAS 55745-70-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H8O2 and a molecular weight of 148.16 g/mol. Key properties include a boiling point of 277.5±19.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 133.2±15.1 °C. It is classified under GHS with signal word Danger and hazard statements H334 — May cause allergy or asthma symptoms if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
55745-70-5
Jingsj CID
J-5703-4
Molecular Formula
C9H8O2
Molecular Weight
148.16 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point277.5±19.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point133.2±15.1 °C
Exact Mass148.052429
PSA26.30000
LogP1.71
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.613

GHS Safety & Compliance

Health HazardSignal word: Danger
  • H334 — May cause allergy or asthma symptoms if inhaled

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 2,3-Dihydrobenzofuran-5-carbaldehyde?

The CAS number of 2,3-Dihydrobenzofuran-5-carbaldehyde is 55745-70-5.

What are the molecular formula and molecular weight of 2,3-Dihydrobenzofuran-5-carbaldehyde?

2,3-Dihydrobenzofuran-5-carbaldehyde has molecular formula C9H8O2 and molecular weight 148.16 g/mol.

Is 2,3-Dihydrobenzofuran-5-carbaldehyde hazardous?

2,3-Dihydrobenzofuran-5-carbaldehyde has GHS signal word Danger and hazard statements H334 — May cause allergy or asthma symptoms if inhaled.

What are the upstream and downstream products of 2,3-Dihydrobenzofuran-5-carbaldehyde?

For 2,3-Dihydrobenzofuran-5-carbaldehyde, Upstream Products: 2,3-Dihydrobenzofuran, N,N-Dimethylformamide, Dichloromethyl methyl ether; Downstream Products: 2,6,7,8-Tetrahydro-1H-indeno[5,4-b]furan-8-ylethylamine, (2E)-3-(2,3-Dihydro-1-benzofuran-5-yl)prop-2-enoic acid, Methyl 2,3-dihydrobenzofuran-5-carboxylate.

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

Last updated:

How to cite: Jingsj. "2,3-Dihydrobenzofuran-5-carbaldehyde (CAS 55745-70-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-5703-4 (accessed 2026-11-09).

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