![Molecular structure of 3-(4-Ethoxyphenyl)-2-thioxo-2,3,5,6,7,8-hexahydro[1]benzothieno[2,3-d]pyrimidin-4(1H)-one (CAS 65234-03-9)](/images/chem_structures_svg/124/65234-03-9.svg)
3-(4-Ethoxyphenyl)-2-thioxo-2,3,5,6,7,8-hexahydro[1]benzothieno[2,3-d]pyrimidin-4(1H)-one
Also known as: 3-(4-Ethoxyphenyl)-2-sulfanylidene-5,6,7,8-tetrahydro-1H-[1]benzothiolo[2,3-d]pyrimidin-4-one, 3-(4-ethoxyphenyl)-2-sulfanyl-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidin-4(3H)-one, 4-(4-Ethoxyphenyl)-5-sulfanyl-8-thia-4,6-diazatricyclo[7.4.0.0,2,7]trideca-1(9),2(7),5-trien-3-one, [1]Benzothieno[2,3-d]pyrimidin-4(1H)-one, 3-(4-ethoxyphenyl)-2,3,5,6,7,8-hexahydro-2-thioxo-
3-(4-Ethoxyphenyl)-2-thioxo-2,3,5,6,7,8-hexahydro[1]benzothieno[2,3-d]pyrimidin-4(1H)-one (CAS 65234-03-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C18H18N2O2S2 and a molecular weight of 358.47800 g/mol. Key properties include a boiling point of 566ºC at 760 mmHg, a density of 1.41g/cm3 and a flash point of 296.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 65234-03-9
- Jingsj CID
- J-1605364-8
- Molecular Formula
- C18H18N2O2S2
- Molecular Weight
- 358.47800 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 566ºC at 760 mmHg |
|---|---|
| Density | 1.41g/cm3 |
| Flash Point | 296.1ºC |
| Exact Mass | 358.08100 |
| PSA | 111.16000 |
| LogP | 4.01340 |
| Refractive Index | 1.707 |
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 3-(4-Ethoxyphenyl)-2-thioxo-2,3,5,6,7,8-hexahydro[1]benzothieno[2,3-d]pyrimidin-4(1H)-one?
The CAS number of 3-(4-Ethoxyphenyl)-2-thioxo-2,3,5,6,7,8-hexahydro[1]benzothieno[2,3-d]pyrimidin-4(1H)-one is 65234-03-9.
What are the molecular formula and molecular weight of 3-(4-Ethoxyphenyl)-2-thioxo-2,3,5,6,7,8-hexahydro[1]benzothieno[2,3-d]pyrimidin-4(1H)-one?
3-(4-Ethoxyphenyl)-2-thioxo-2,3,5,6,7,8-hexahydro[1]benzothieno[2,3-d]pyrimidin-4(1H)-one has molecular formula C18H18N2O2S2 and molecular weight 358.47800 g/mol.
What are the upstream and downstream products of 3-(4-Ethoxyphenyl)-2-thioxo-2,3,5,6,7,8-hexahydro[1]benzothieno[2,3-d]pyrimidin-4(1H)-one?
For 3-(4-Ethoxyphenyl)-2-thioxo-2,3,5,6,7,8-hexahydro[1]benzothieno[2,3-d]pyrimidin-4(1H)-one, Upstream Products: Ethyl 2-amino-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate, 4-Ethoxyphenyl isothiocyanate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-(4-Ethoxyphenyl)-2-thioxo-2,3,5,6,7,8-hexahydro[1]benzothieno[2,3-d]pyrimidin-4(1H)-one (CAS 65234-03-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1605364-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.