2,1,3-Benzothiadiazole
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. 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-1012816-2
- Molecular Formula
- C6H4N2S
- Molecular Weight
- 136.17 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 42-44 °C(lit.) |
|---|---|
| Boiling Point | 206.0±9.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 81.4±9.1 °C |
| Exact Mass | 136.009521 |
| PSA | 54.02000 |
| LogP | 1.98 |
| Vapor Pressure | 0.3±0.4 mmHg at 25°C |
| Refractive Index | 1.705 |
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 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.
What are the upstream and downstream products of 2,1,3-Benzothiadiazole?
For 2,1,3-Benzothiadiazole, Upstream Products: o-Phenylenediamine, Benzofuroxan; Downstream Products: Benzo[c][1,2,5]thiadiazole-4-carboxylic acid, 2,1,3-Benzothiadiazole-4-carbaldehyde, 4-Iodo-2,1,3-benzothiadiazole.
Data compiled from public chemical databases such as PubChem 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-1012816-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.