Isothiazole-4-carboxylic acid
4-羧基异噻唑
Also known as: 1,2-Thiazole-4-carboxylic acid, 4-Carboxyisothiazole, 4-Isothiazolecarboxylic acid
Isothiazole-4-carboxylic acid (CAS 822-82-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H3NO2S and a molecular weight of 129.137 g/mol. It is also known as 1,2-Thiazole-4-carboxylic acid, 4-Carboxyisothiazole and 4-Isothiazolecarboxylic acid. Key properties include a boiling point of 175.8±23.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 60.1±22.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 822-82-2
- Jingsj CID
- J-1496984-1
- Molecular Formula
- C4H3NO2S
- Chinese Name
- 4-羧基异噻唑
- Molecular Weight
- 129.137 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 175.8±23.0 °C at 760 mmHg |
|---|---|
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 60.1±22.6 °C |
Frequently Asked Questions
What is the CAS number of Isothiazole-4-carboxylic acid?
The CAS number of Isothiazole-4-carboxylic acid is 822-82-2.
What are the molecular formula and molecular weight of Isothiazole-4-carboxylic acid?
Isothiazole-4-carboxylic acid has molecular formula C4H3NO2S and molecular weight 129.137 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Isothiazole-4-carboxylic acid (CAS 822-82-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1496984-1 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.