4-Chloro-3(2H)-benzofuranone

4-氯-3-苯并呋喃酮

Also known as: 4-Chlorobenzofuran-3(2H)-one, 4-Chloro-2,3-dihydro-1-benzofuran-3-one, 3(2H)-Benzofuranone, 4-chloro-, 4-chloro-2,3-dihydro-1-benzofuran-3-one

4-Chloro-3(2H)-benzofuranone (CAS 3260-90-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H5ClO2 and a molecular weight of 168.57700 g/mol. It is also known as 4-Chlorobenzofuran-3(2H)-one, 4-Chloro-2,3-dihydro-1-benzofuran-3-one and 3(2H)-Benzofuranone, 4-chloro-. Key properties include a boiling point of 322.581ºC at 760 mmHg, a density of 1.743g/cm3 and a flash point of 148.892ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3260-90-0
Jingsj CID
J-1378050-4
Molecular Formula
C8H5ClO2
Chinese Name
4-氯-3-苯并呋喃酮
Molecular Weight
168.57700 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point322.581ºC at 760 mmHg
Density1.743g/cm3
Flash Point148.892ºC

Frequently Asked Questions

What is the CAS number of 4-Chloro-3(2H)-benzofuranone?

The CAS number of 4-Chloro-3(2H)-benzofuranone is 3260-90-0.

What are the molecular formula and molecular weight of 4-Chloro-3(2H)-benzofuranone?

4-Chloro-3(2H)-benzofuranone has molecular formula C8H5ClO2 and molecular weight 168.57700 g/mol.

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

Last updated:

How to cite: Jingsj. "4-Chloro-3(2H)-benzofuranone (CAS 3260-90-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1378050-4 (accessed 2026-10-25).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.