5-methoxy-3H-1,3-benzoxazole-2-thione
Also known as: 5-Methoxy-1,3-benzoxazole-2(3H)-thione, 5-Methoxybenzo[d]oxazole-2(3H)-thione, 5-Methoxybenzoxazole-2-thiol, 5-Methoxy-2-mercaptobenzoxazole, 2-Mercapto-5-methoxybenzoxazole, 2-Mercapto-5-methoxybenzo[d]oxazole, 5-methoxy-3H-benzooxazole-2-thione, Omeprazole Impurity 55
5-methoxy-3H-1,3-benzoxazole-2-thione (CAS 49559-83-3) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C8H7NO2S and a molecular weight of 181.21400 g/mol. Key properties include a melting point of 218-223ºC, a boiling point of 326.7±44.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 151.4±28.4 °C. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.
- CAS No.
- 49559-83-3
- Jingsj CID
- J-1340007-2
- Molecular Formula
- C8H7NO2S
- Molecular Weight
- 181.21400 g/mol
- Category
- Ketones
- Last updated
- 11/2/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 218-223ºC |
|---|---|
| Boiling Point | 326.7±44.0 °C at 760 mmHg |
| Density | 1.6±0.1 g/cm3 |
| Flash Point | 151.4±28.4 °C |
| Exact Mass | 167.004105 |
| PSA | 70.25000 |
| LogP | 1.68 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.776 |
| Storage Conditions | 2-8°C |
Customs & Trade Information
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. 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 5-methoxy-3H-1,3-benzoxazole-2-thione?
The CAS number of 5-methoxy-3H-1,3-benzoxazole-2-thione is 49559-83-3.
What are the molecular formula and molecular weight of 5-methoxy-3H-1,3-benzoxazole-2-thione?
5-methoxy-3H-1,3-benzoxazole-2-thione has molecular formula C8H7NO2S and molecular weight 181.21400 g/mol.
What are the upstream and downstream products of 5-methoxy-3H-1,3-benzoxazole-2-thione?
For 5-methoxy-3H-1,3-benzoxazole-2-thione, Upstream Products: Potassium ethylxanthate, 2-Amino-4-methoxyphenol, Carbon disulphide.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5-methoxy-3H-1,3-benzoxazole-2-thione (CAS 49559-83-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1340007-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.