Isothiazole-3-carboxylic acid
异噻唑-3-羧酸
Also known as: 3-Isothiazolecarboxylic acid, 1,2-thiazole-3-carboxylic acid, 3-Carboxyisothiazole, 3-Carboxyisothiazole, 1,2-Thiazole-3-carboxylic acid, 3-ISOTHIAZOLE CARBOXYLIC ACID, 3-Isothiazolecarboxylic, Isothiazole-3-carboxylic acid 97%, Isothiazole-3-carboxylicacid97%
Isothiazole-3-carboxylic acid (CAS 4576-90-3) 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 129.13700 g/mol. It is also known as 3-Isothiazolecarboxylic acid, 1,2-thiazole-3-carboxylic acid and 3-Carboxyisothiazole. Key properties include a boiling point of 178ºC, a density of 1.525 and a flash point of 62ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 4576-90-3
- Jingsj CID
- J-1386757-7
- Molecular Formula
- C4H3NO2S
- Chinese Name
- 异噻唑-3-羧酸
- Molecular Weight
- 129.13700 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 178ºC |
|---|---|
| Density | 1.525 |
| Flash Point | 62ºC |
Frequently Asked Questions
What is the CAS number of Isothiazole-3-carboxylic acid?
The CAS number of Isothiazole-3-carboxylic acid is 4576-90-3.
What are the molecular formula and molecular weight of Isothiazole-3-carboxylic acid?
Isothiazole-3-carboxylic acid has molecular formula C4H3NO2S and molecular weight 129.13700 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Isothiazole-3-carboxylic acid (CAS 4576-90-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1386757-7 (accessed 2026-10-24).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.