3-Chlorophthalic acid

Also known as: 1,2-Benzenedicarboxylic acid, 3-chloro-, 3-chloro-1,2-benzenedicarboxylic acid, NSC 62536, Phthalic acid, 3-chloro-, 3-chlorobenzene-1,2-dicarboxylic acid, EINECS 248-527-7

3-Chlorophthalic acid (CAS 27563-65-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H5ClO4 and a molecular weight of 200.576 g/mol. Key properties include a boiling point of 387.7±27.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 188.3±23.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 27563-65-1
Jingsj CID: J-1180290-7
Molecular Formula: C₈H₅ClO₄
Molecular Weight: 200.576 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	387.7±27.0 °C at 760 mmHg
Density	1.6±0.1 g/cm3
Flash Point	188.3±23.7 °C
Exact Mass	199.987640
PSA	74.60000
LogP	1.37
Vapor Pressure	0.0±0.9 mmHg at 25°C
Refractive Index	1.630

Customs & Trade Information

HS Code	2917399090
Summary	2917399090 aromatic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 3-Chlorophthalic acid?

The CAS number of 3-Chlorophthalic acid is 27563-65-1.

What are the molecular formula and molecular weight of 3-Chlorophthalic acid?

3-Chlorophthalic acid has molecular formula C8H5ClO4 and molecular weight 200.576 g/mol.

What are the upstream and downstream products of 3-Chlorophthalic acid?

For 3-Chlorophthalic acid, Upstream Products: 3-Chloro-o-xylene, Carbon dioxide, 2-Chlorobenzoic acid; Downstream Products: 4-Hydroxyphthalic acid, 4-Chlorophthalide, 7-Chlorophthalide.

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. "3-Chlorophthalic acid (CAS 27563-65-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1180290-7 (accessed 2026-11-09).

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