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2-(2,3-dihydro-1-benzofuran-5-yl)acetic acid

Also known as: 2,3-Dihydro-5-benzofuranacetic acid, 2,3-Dihydrobenzofuran-5-acetic acid, 2,3-Dihydrobenzofuranyl-5-acetic acid, 2,3-Dihydro-1-benzofuran-5-ylacetic acid, 5-Benzofuranacetic acid, 2,3-dihydro-, 5-Coumaranacetic acid, Darifenacin intermediate 1

2-(2,3-dihydro-1-benzofuran-5-yl)acetic acid (CAS 69999-16-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H10O3 and a molecular weight of 178.185 g/mol. Key properties include a melting point of 105-107ºC, a boiling point of 345.8±11.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 142.1±12.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
69999-16-2
Jingsj CID
J-1525403-2
Molecular Formula
C10H10O3
Molecular Weight
178.185 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point105-107ºC
Boiling Point345.8±11.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point142.1±12.8 °C
Exact Mass178.062988
PSA46.53000
LogP1.43
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.595

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-(2,3-dihydro-1-benzofuran-5-yl)acetic acid?

The CAS number of 2-(2,3-dihydro-1-benzofuran-5-yl)acetic acid is 69999-16-2.

What are the molecular formula and molecular weight of 2-(2,3-dihydro-1-benzofuran-5-yl)acetic acid?

2-(2,3-dihydro-1-benzofuran-5-yl)acetic acid has molecular formula C10H10O3 and molecular weight 178.185 g/mol.

What are the upstream and downstream products of 2-(2,3-dihydro-1-benzofuran-5-yl)acetic acid?

For 2-(2,3-dihydro-1-benzofuran-5-yl)acetic acid, Upstream Products: 2,3-Dihydrobenzofuran, 5-Acetyl-2,3-dihydrobenzo[b]furan; Downstream Products: 5-(Bromomethyl)benzofuran, 2,3-Dihydro-5-benzofuranethanol, Methyl 2-(2,3-dihydrobenzofuran-5-yl)acetate.

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-(2,3-dihydro-1-benzofuran-5-yl)acetic acid (CAS 69999-16-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1525403-2 (accessed 2026-11-09).

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