Sodium pyrithione
吡啶硫酮钠
Also known as: 2-Mercaptopyridine N-oxide sodium salt, 1-Hydroxy-2-pyridinethione sodium salt, 2-Pyridinethiol-1-oxide sodium salt, Sodium omadine, Sodium 2-pyridinethiolate 1-oxide, NaPT, Pyrithione sodium salt, Sodium-2-pyridinethiol-1-oxide
Sodium pyrithione (CAS 3811-73-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H4NNaOS and a molecular weight of 149.146 g/mol. It is also known as 2-Mercaptopyridine N-oxide sodium salt, 1-Hydroxy-2-pyridinethione sodium salt and 2-Pyridinethiol-1-oxide sodium salt. Key properties include a melting point of -25 °C, a boiling point of 109 °C, a density of 1.22 and a flash point of 107.3ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 3811-73-2
- Jingsj CID
- J-1987102-8
- Molecular Formula
- C5H4NNaOS
- Chinese Name
- 吡啶硫酮钠
- Molecular Weight
- 149.146 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -25 °C |
|---|---|
| Boiling Point | 109 °C |
| Density | 1.22 |
| Flash Point | 107.3ºC |
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of Sodium pyrithione?
The CAS number of Sodium pyrithione is 3811-73-2.
What are the molecular formula and molecular weight of Sodium pyrithione?
Sodium pyrithione has molecular formula C5H4NNaOS and molecular weight 149.146 g/mol.
Is Sodium pyrithione hazardous?
Sodium pyrithione has GHS signal word Warning.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Sodium pyrithione (CAS 3811-73-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1987102-8 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.