Chlorthal-dimethyl

敌草索

Also known as: DCPA, Dacthal, Dimethyl tetrachloroterephthalate, Dimethyl 2,3,5,6-tetrachloroterephthalate, Chlorthal-methyl, Tetrachloroterephthalic acid dimethyl ester, 2,3,5,6-Tetrachloro-1,4-benzenedicarboxylic acid dimethyl ester

Chlorthal-dimethyl (CAS 1861-32-1) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C10H6Cl4O4 and a molecular weight of 331.964 g/mol. It is also known as DCPA, Dacthal and Dimethyl tetrachloroterephthalate. Key properties include a melting point of 155-156°C, a boiling point of 422.0±40.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 174.7±26.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1861-32-1
Jingsj CID
J-6339-1
Molecular Formula
C10H6Cl4O4
Chinese Name
敌草索
Molecular Weight
331.964 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point155-156°C
Boiling Point422.0±40.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point174.7±26.3 °C

Frequently Asked Questions

What is the CAS number of Chlorthal-dimethyl?

The CAS number of Chlorthal-dimethyl is 1861-32-1.

What are the molecular formula and molecular weight of Chlorthal-dimethyl?

Chlorthal-dimethyl has molecular formula C10H6Cl4O4 and molecular weight 331.964 g/mol.

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

Last updated:

How to cite: Jingsj. "Chlorthal-dimethyl (CAS 1861-32-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-6339-1 (accessed 2026-10-24).

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