Chlorthal

Also known as: 2,3,5,6-Tetrachloro-1,4-benzenedicarboxylic acid, Tetrachloroterephthalic acid, DCPA, Perchloroterephthalic acid, 2,3,5,6-tetrachlorobenzene-1,4-dicarboxylic acid, Tetrachloroterephthalic Acid, Pract., Chlorthal-diacid

Chlorthal (CAS 2136-79-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H2Cl4O4 and a molecular weight of 303.911 g/mol. Key properties include a melting point of 239-242°C, a boiling point of 425.2±45.0 °C at 760 mmHg, a density of 1.9±0.1 g/cm3 and a flash point of 210.9±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 2136-79-0
Jingsj CID: J-26356-9
Molecular Formula: C₈H₂Cl₄O₄
Molecular Weight: 303.911 g/mol
Category: Organic Acids
Last updated: 8/21/2026

Request MSDS / TDS

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point	239-242°C
Boiling Point	425.2±45.0 °C at 760 mmHg
Density	1.9±0.1 g/cm3
Flash Point	210.9±28.7 °C
Exact Mass	301.870728
PSA	74.60000
LogP	3.85
Vapor Pressure	0.0±1.1 mmHg at 25°C
Refractive Index	1.657

Customs & Trade Information

HS Code	2917399013
Summary	2917399013 2,3,5,6-tetrachloroterephthalic acid。supervision conditions:s(import or export registration certificate for pesticides)。VAT:17.0%。tax rebate rate:9.0%。MFN tarrif:6.5%。general tariff:30.0%

Frequently Asked Questions

What is the CAS number of Chlorthal?

The CAS number of Chlorthal is 2136-79-0.

What are the molecular formula and molecular weight of Chlorthal?

Chlorthal has molecular formula C8H2Cl4O4 and molecular weight 303.911 g/mol.

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. "Chlorthal (CAS 2136-79-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-26356-9 (accessed 2026-11-09).

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