4-Hydroxypyridine-3-sulfonic acid
4-羟基吡啶-3-磺酸
Also known as: 4-Hydroxy-3-pyridinesulfonic acid, 4-Pyridinol-3-sulfonic acid, 4-Hydroxypyridine-3-sulphonic acid, 4-Hydroxypyridie-3-sulphonic acid, 4-Hydroxypyridie-sulphonic acid, 4-Hydroxy-pyridin-3-sulfonsaeure, 3-Pyridinesulfonic acid, 4-hydroxy-, 4(1H)-pyridone-3-sulfonic acid, hydroxypyridinesulfonicacid, MFCD02093473, EINECS 257-243-2
4-Hydroxypyridine-3-sulfonic acid (CAS 51498-37-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H5NO4S and a molecular weight of 175.163 g/mol. It is also known as 4-Hydroxy-3-pyridinesulfonic acid, 4-Pyridinol-3-sulfonic acid and 4-Hydroxypyridine-3-sulphonic acid. Key properties include a melting point of >300°C and a density of 1.7±0.1 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 51498-37-4
- Jingsj CID
- J-1510224-5
- Molecular Formula
- C5H5NO4S
- Chinese Name
- 4-羟基吡啶-3-磺酸
- Molecular Weight
- 175.163 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | >300°C |
|---|---|
| Density | 1.7±0.1 g/cm3 |
Frequently Asked Questions
What is the CAS number of 4-Hydroxypyridine-3-sulfonic acid?
The CAS number of 4-Hydroxypyridine-3-sulfonic acid is 51498-37-4.
What are the molecular formula and molecular weight of 4-Hydroxypyridine-3-sulfonic acid?
4-Hydroxypyridine-3-sulfonic acid has molecular formula C5H5NO4S and molecular weight 175.163 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Hydroxypyridine-3-sulfonic acid (CAS 51498-37-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1510224-5 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.