Pyrithione
Also known as: 1-hydroxypyridine-2-thione, 2-Pyridinethione, 1-hydroxy-, N-Hydroxypyridine-2-thione, PTO, SQ-2113, 1-hydroxy-2-pyridinethione, 1-hydroxyl-1H-pyridine-2-thione, N-hydroxy-2-pyridinethione
Pyrithione (CAS 1121-30-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H5NOS and a molecular weight of 127.16400 g/mol. Key properties include a boiling point of 253.8ºC at 760mmHg, a density of 1.43g/cm3 and a flash point of 107.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1121-30-8
- Jingsj CID
- J-26207-7
- Molecular Formula
- C5H5NOS
- Molecular Weight
- 127.16400 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 253.8ºC at 760mmHg |
|---|---|
| Density | 1.43g/cm3 |
| Flash Point | 107.3ºC |
| Exact Mass | 127.00900 |
| PSA | 57.25000 |
| LogP | 1.45490 |
| Vapor Pressure | 0.00275mmHg at 25°C |
| Refractive Index | 1.732 |
| Storage Conditions | 2-8℃ |
Activity & Biological Data
| Additional Information | [1]. PANSY FE, et al. In vitro studies with 1-hydroxy-2(1H) pyridinethione. Proc Soc Exp Biol Med. 1953 Jan;82(1):122-4. |
|---|
Customs & Trade Information
| HS Code | 2933399090 |
|---|---|
| Summary | 2933399090. other compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of Pyrithione?
The CAS number of Pyrithione is 1121-30-8.
What are the molecular formula and molecular weight of Pyrithione?
Pyrithione has molecular formula C5H5NOS and molecular weight 127.16400 g/mol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Pyrithione (CAS 1121-30-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-26207-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.