2-(Methylthio)thieno[2,3-d]pyrimidin-4(1H)-one
Also known as: 2-Methylsulfanyl-1H-thieno[2,3-d]pyrimidin-4-one, 2-(Methylthio)thieno[2,3-d]pyrimidin-4(3H)-one, 2-(Methylthio)thieno[2,3-d]pyriMidin-4-ol, 2-(methylthio)-Thieno[2,3-d]pyrimidin-4(1H)-one, 2-methylsulfanyl-3H-thieno[2,3-d]pyrimidin-4-one, Thieno[2,3-d]pyrimidin-4(1H)-one, 2-(methylthio)-
2-(Methylthio)thieno[2,3-d]pyrimidin-4(1H)-one (CAS 309976-36-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H6N2OS2 and a molecular weight of 198.26500 g/mol. Key properties include a boiling point of 442.5ºC at 760 mmHg, a density of 1.61g/cm3 and a flash point of 221.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 309976-36-1
- Jingsj CID
- J-1521462-7
- Molecular Formula
- C7H6N2OS2
- Molecular Weight
- 198.26500 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 442.5ºC at 760 mmHg |
|---|---|
| Density | 1.61g/cm3 |
| Flash Point | 221.4ºC |
| Exact Mass | 197.99200 |
| PSA | 99.55000 |
| LogP | 2.11880 |
| Refractive Index | 1.79 |
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 2-(Methylthio)thieno[2,3-d]pyrimidin-4(1H)-one?
The CAS number of 2-(Methylthio)thieno[2,3-d]pyrimidin-4(1H)-one is 309976-36-1.
What are the molecular formula and molecular weight of 2-(Methylthio)thieno[2,3-d]pyrimidin-4(1H)-one?
2-(Methylthio)thieno[2,3-d]pyrimidin-4(1H)-one has molecular formula C7H6N2OS2 and molecular weight 198.26500 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. "2-(Methylthio)thieno[2,3-d]pyrimidin-4(1H)-one (CAS 309976-36-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1521462-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.