![Molecular structure of thieno[3,2-d]pyrimidin-4(1H)-one (CAS 16234-10-9)](/images/chem_structures_svg/094/16234-10-9.svg)
thieno[3,2-d]pyrimidin-4(1H)-one
Also known as: 1H-thieno[3,2-d]pyrimidin-4-one, 3,4-dihydrothieno[3,2-d]pyrimidin-4-one, 4-hydroxythieno[3,2-d]pyrimidine, thieno[3,2-d]pyrimidin-4(3H)-one, 3H,4H-thieno[3,2-d]pyrimidin-4-one, thieno[3,2-d]pyrimidin-4-ol
thieno[3,2-d]pyrimidin-4(1H)-one (CAS 16234-10-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H4N2OS and a molecular weight of 152.174 g/mol. Key properties include a melting point of 222-223ºC, a boiling point of 335.9±22.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 156.9±22.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 16234-10-9
- Jingsj CID
- J-1455635-5
- Molecular Formula
- C6H4N2OS
- Molecular Weight
- 152.174 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 222-223ºC |
|---|---|
| Boiling Point | 335.9±22.0 °C at 760 mmHg |
| Density | 1.6±0.1 g/cm3 |
| Flash Point | 156.9±22.3 °C |
| Exact Mass | 152.004440 |
| PSA | 73.99000 |
| LogP | 1.23 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.766 |
| Storage Conditions | Room temperature. |
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 thieno[3,2-d]pyrimidin-4(1H)-one?
The CAS number of thieno[3,2-d]pyrimidin-4(1H)-one is 16234-10-9.
What are the molecular formula and molecular weight of thieno[3,2-d]pyrimidin-4(1H)-one?
thieno[3,2-d]pyrimidin-4(1H)-one has molecular formula C6H4N2OS and molecular weight 152.174 g/mol.
What are the upstream and downstream products of thieno[3,2-d]pyrimidin-4(1H)-one?
For thieno[3,2-d]pyrimidin-4(1H)-one, Upstream Products: Methyl 3-aminothiophene-2-carboxylate, Trimethyl orthoformate, Formic Acid; Downstream Products: thieno[3,2-d]pyrimidine, 7-Bromothieno[3,2-d]pyrimidin-4(3H)-one, 7-Bromo-4-chlorothieno[3,2-d]pyrimidine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "thieno[3,2-d]pyrimidin-4(1H)-one (CAS 16234-10-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1455635-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.