2,1,3-Benzothiadiazole

2,1,3-苯并噻二唑

Also known as: Benzo-2,1,3-thiadiazole, Benzisothiadiazole, Benzo[1,2,5]thiadiazole, Piazthiole, 3,4-Benzo-1,2,5-thiadiazole, 2-Thia-1,3-diaza-2H-isoindene, benzo[c]-1,2,5-thiadiazole, 2,3-Benzothiadiazole, Piazthiole (VAN), MFCD00005809, EINECS 205-985-2

2,1,3-Benzothiadiazole (CAS 273-13-2) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C6H4N2S and a molecular weight of 136.17 g/mol. It is also known as Benzo-2,1,3-thiadiazole, Benzisothiadiazole and Benzo[1,2,5]thiadiazole. Key properties include a melting point of 42-44 °C(lit.), a boiling point of 206.0±9.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 81.4±9.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
273-13-2
Jingsj CID
J-1012816-9
Molecular Formula
C6H4N2S
Chinese Name
2,1,3-苯并噻二唑
Molecular Weight
136.17 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point42-44 °C(lit.)
Boiling Point206.0±9.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point81.4±9.1 °C

Frequently Asked Questions

What is the CAS number of 2,1,3-Benzothiadiazole?

The CAS number of 2,1,3-Benzothiadiazole is 273-13-2.

What are the molecular formula and molecular weight of 2,1,3-Benzothiadiazole?

2,1,3-Benzothiadiazole has molecular formula C6H4N2S and molecular weight 136.17 g/mol.

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

Last updated:

How to cite: Jingsj. "2,1,3-Benzothiadiazole (CAS 273-13-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1012816-9 (accessed 2026-10-22).

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