2,1,3-Benzothiadiazole-5-carboxylic acid
2,1,3-苯并噻二唑-5-甲酸
Also known as: benzo[c][1,2,5]thiadiazole-5-carboxylic acid, benzo[1,2,5]thiadiazole-5-carboxylic acid, 2,1,3-benzothiadiazol-5-carbonsaeure, 5-carboxy-2,1,3-benzothiadiazole, benzo-2,1,3-thiadiazole-5-carboxylic acid
2,1,3-Benzothiadiazole-5-carboxylic acid (CAS 16405-98-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H4N2O2S and a molecular weight of 180.184 g/mol. It is also known as benzo[c][1,2,5]thiadiazole-5-carboxylic acid, benzo[1,2,5]thiadiazole-5-carboxylic acid and 2,1,3-benzothiadiazol-5-carbonsaeure. Key properties include a melting point of 229ºC, a boiling point of 368.7±15.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 176.8±20.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 16405-98-4
- Jingsj CID
- J-1360353-1
- Molecular Formula
- C7H4N2O2S
- Chinese Name
- 2,1,3-苯并噻二唑-5-甲酸
- Molecular Weight
- 180.184 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 229ºC |
|---|---|
| Boiling Point | 368.7±15.0 °C at 760 mmHg |
| Density | 1.6±0.1 g/cm3 |
| Flash Point | 176.8±20.4 °C |
| Exact Mass | 179.999344 |
| PSA | 91.32000 |
| LogP | 1.66 |
| Vapor Pressure | 0.0±0.9 mmHg at 25°C |
| Refractive Index | 1.749 |
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-5-carboxylic acid?
The CAS number of 2,1,3-Benzothiadiazole-5-carboxylic acid is 16405-98-4.
What are the molecular formula and molecular weight of 2,1,3-Benzothiadiazole-5-carboxylic acid?
2,1,3-Benzothiadiazole-5-carboxylic acid has molecular formula C7H4N2O2S and molecular weight 180.184 g/mol.
What are the upstream and downstream products of 2,1,3-Benzothiadiazole-5-carboxylic acid?
For 2,1,3-Benzothiadiazole-5-carboxylic acid, Upstream Products: benzo[c][1,2,5]thiadiazole-5-carbaldehyde, 5-Methyl-2,1,3-benzothiadiazole, 5-(bromomethyl)-2,1,3-benzothiadiazole; Downstream Products: 2,1,3-Benzothiadiazol-5-ylmethanol.
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-5-carboxylic acid (CAS 16405-98-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1360353-1 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.