4,5,7-Trichloro-2,1,3-benzothiadiazole

Also known as: Chlothizole, PH 40-21, TH 052, 052-H, 4,5,7-Trichlor-2,1,3-Benzothiadiazol, 4,5,7-Trichlorobenzthiadiazole-2,1,3

4,5,7-Trichloro-2,1,3-benzothiadiazole (CAS 1982-55-4) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C6HCl3N2S and a molecular weight of 239.51000 g/mol. Key properties include a boiling point of 318.7ºC at 760 mmHg, a density of 1.769g/cm3 and a flash point of 146.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 1982-55-4
Jingsj CID: J-1358621-6
Molecular Formula: C₆HCl₃N₂S
Molecular Weight: 239.51000 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	318.7ºC at 760 mmHg
Density	1.769g/cm3
Flash Point	146.6ºC
Exact Mass	237.89300
PSA	54.02000
LogP	3.65150
Vapor Pressure	0.000661mmHg at 25°C
Refractive Index	1.718

Customs & Trade Information

HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. 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 4,5,7-Trichloro-2,1,3-benzothiadiazole?

The CAS number of 4,5,7-Trichloro-2,1,3-benzothiadiazole is 1982-55-4.

What are the molecular formula and molecular weight of 4,5,7-Trichloro-2,1,3-benzothiadiazole?

4,5,7-Trichloro-2,1,3-benzothiadiazole has molecular formula C6HCl3N2S and molecular weight 239.51000 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. "4,5,7-Trichloro-2,1,3-benzothiadiazole (CAS 1982-55-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1358621-6 (accessed 2026-11-06).

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