3-Hydroxyisothiazole-5-carboxylic acid
3-羟基异噻唑-5-甲酸
Also known as: 5-carboxy-3-hydroxyisothiazole, 3-hydroxy-1,2-thiazole-5-carboxylic acid
3-Hydroxyisothiazole-5-carboxylic acid (CAS 1257444-26-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H3NO3S and a molecular weight of 145.14 g/mol. It is also known as 5-carboxy-3-hydroxyisothiazole and 3-hydroxy-1,2-thiazole-5-carboxylic acid. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1257444-26-0
- Jingsj CID
- J-1350377-6
- Molecular Formula
- C4H3NO3S
- Chinese Name
- 3-羟基异噻唑-5-甲酸
- Molecular Weight
- 145.14 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quoteFrequently Asked Questions
What is the CAS number of 3-Hydroxyisothiazole-5-carboxylic acid?
The CAS number of 3-Hydroxyisothiazole-5-carboxylic acid is 1257444-26-0.
What are the molecular formula and molecular weight of 3-Hydroxyisothiazole-5-carboxylic acid?
3-Hydroxyisothiazole-5-carboxylic acid has molecular formula C4H3NO3S and molecular weight 145.14 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-Hydroxyisothiazole-5-carboxylic acid (CAS 1257444-26-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1350377-6 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.