![Molecular structure of 5,6,7,7a-Tetrahydrothieno[3,2-c]pyridin-2(4H)-one (CAS 109904-37-2)](/images/chem_structures_svg/347/109904-37-2.svg)
5,6,7,7a-Tetrahydrothieno[3,2-c]pyridin-2(4H)-one
Also known as: 5,6,7,7a-Tetrahydrothieno[3,2-c]pyridine-2(4H)-one, 5,6,7,7a-tetrahydro-4H-thieno[3,2-c]pyridin-2-one, Thieno[3,2-c]pyridin-2(4H)-one, 5,6,7,7a-tetrahydro-, 2H,4H,5H,6H,7H,7aH-thieno[3,2-c]pyridin-2-one
5,6,7,7a-Tetrahydrothieno[3,2-c]pyridin-2(4H)-one (CAS 109904-37-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H9NOS and a molecular weight of 155.217 g/mol. Key properties include a boiling point of 341.7±42.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 160.5±27.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 109904-37-2
- Jingsj CID
- J-1435175-8
- Molecular Formula
- C7H9NOS
- Molecular Weight
- 155.217 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 341.7±42.0 °C at 760 mmHg |
|---|---|
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 160.5±27.9 °C |
| Exact Mass | 155.040482 |
| PSA | 54.40000 |
| LogP | 0.49 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.615 |
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 5,6,7,7a-Tetrahydrothieno[3,2-c]pyridin-2(4H)-one?
The CAS number of 5,6,7,7a-Tetrahydrothieno[3,2-c]pyridin-2(4H)-one is 109904-37-2.
What are the molecular formula and molecular weight of 5,6,7,7a-Tetrahydrothieno[3,2-c]pyridin-2(4H)-one?
5,6,7,7a-Tetrahydrothieno[3,2-c]pyridin-2(4H)-one has molecular formula C7H9NOS and molecular weight 155.217 g/mol.
What are the upstream and downstream products of 5,6,7,7a-Tetrahydrothieno[3,2-c]pyridin-2(4H)-one?
For 5,6,7,7a-Tetrahydrothieno[3,2-c]pyridin-2(4H)-one, Downstream Products: 5-[2-Cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl]-5,6,7,7a-tetrahydrothieno[3,2-c]pyridin-2(4H)-one.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5,6,7,7a-Tetrahydrothieno[3,2-c]pyridin-2(4H)-one (CAS 109904-37-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1435175-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.