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6-Chloroisobenzofuran-1(3H)-one

Also known as: 6-CHLOROISOBENZOFURAN-1(3H)-ONE, 1(3H)-Isobenzofuranone, 6-chloro-, 6-CHLORO-3 H-ISOBENZOFURAN-1-ONE, 6-CHLORO-3H-ISOBENZOFURAN-1-ONE, 6-Chloro-Phthalide, 6-chloro-1,3-dihydro-2-benzofuran-1-one, 6-chloro-2-benzofuran-1(3H)-one, 6-chloro-3H-2-benzofuran-1-one, 6-chloro-3H-isobenzofuran-1-one, 4-chlorophthalide (incorrect)

6-Chloroisobenzofuran-1(3H)-one (CAS 19641-29-3) 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. Key properties include a boiling point of 348.3ºC at 760 mmHg, a density of 1.428 g/cm3 and a flash point of 194.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
19641-29-3
Jingsj CID
J-1512656-4
Molecular Formula
C8H5ClO2
Molecular Weight
168.57700 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point348.3ºC at 760 mmHg
Density1.428 g/cm3
Flash Point194.5ºC
Exact Mass167.99800
PSA26.30000
LogP2.01040

Customs & Trade Information

HS Code2932209090
Summary2932209090. other lactones. 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 6-Chloroisobenzofuran-1(3H)-one?

The CAS number of 6-Chloroisobenzofuran-1(3H)-one is 19641-29-3.

What are the molecular formula and molecular weight of 6-Chloroisobenzofuran-1(3H)-one?

6-Chloroisobenzofuran-1(3H)-one has molecular formula C8H5ClO2 and molecular weight 168.57700 g/mol.

What are the upstream and downstream products of 6-Chloroisobenzofuran-1(3H)-one?

For 6-Chloroisobenzofuran-1(3H)-one, Upstream Products: 3-Chlorobenzoic acid, Dibromomethane, 6-Aminophthalide; Downstream Products: Benzhydrol, 4-chloro-2-formylbenzoic acid.

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

Last updated:

How to cite: Jingsj. "6-Chloroisobenzofuran-1(3H)-one (CAS 19641-29-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1512656-4 (accessed 2026-11-09).

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