4-Chlorophthalide

Also known as: 4-Chloroisobenzofuran-1(3H)-one, 1(3H)-Isobenzofuranone, 4-chloro-, 4-chloro-3H-2-benzofuran-1-one, 4-chloro-3H-isobenzofuran-1-one

4-Chlorophthalide (CAS 52010-22-7) 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 360.6ºC at 760mmHg, a density of 1.428g/cm3 and a flash point of 203.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 52010-22-7
Jingsj CID: J-1499746-7
Molecular Formula: C₈H₅ClO₂
Molecular Weight: 168.57700 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	360.6ºC at 760mmHg
Density	1.428g/cm3
Flash Point	203.5ºC
Exact Mass	167.99800
PSA	26.30000
LogP	2.01040
Refractive Index	1.601

Customs & Trade Information

HS Code	2932209090
Summary	2932209090. 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 4-Chlorophthalide?

The CAS number of 4-Chlorophthalide is 52010-22-7.

What are the molecular formula and molecular weight of 4-Chlorophthalide?

4-Chlorophthalide has molecular formula C8H5ClO2 and molecular weight 168.57700 g/mol.

What are the upstream and downstream products of 4-Chlorophthalide?

For 4-Chlorophthalide, Upstream Products: 3-Chlorophthalic anhydride, 4-Aminophthalide, 4-Chloro-1,2-dimethylbenzene.

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. "4-Chlorophthalide (CAS 52010-22-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1499746-7 (accessed 2026-11-09).

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