![Molecular structure of 4-Chlorothieno[3,2-d]pyrimidine (CAS 16269-66-2)](/images/chem_structures_svg/310/16269-66-2.svg)
4-Chlorothieno[3,2-d]pyrimidine
Also known as: 4-Chlorothieno[3,2-d]pyrimidine, Thieno[3,2-d]pyrimidine, 4-chloro-, MFCD01312373, T56 BS FN HNJ IG
4-Chlorothieno[3,2-d]pyrimidine (CAS 16269-66-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H3ClN2S and a molecular weight of 170.619 g/mol. Key properties include a melting point of 125 °C, a boiling point of 285.7±20.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 126.6±21.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 16269-66-2
- Jingsj CID
- J-5869-5
- Molecular Formula
- C6H3ClN2S
- Molecular Weight
- 170.619 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 125 °C |
|---|---|
| Boiling Point | 285.7±20.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 126.6±21.8 °C |
| Exact Mass | 169.970551 |
| PSA | 54.02000 |
| LogP | 2.61 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.710 |
| 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 4-Chlorothieno[3,2-d]pyrimidine?
The CAS number of 4-Chlorothieno[3,2-d]pyrimidine is 16269-66-2.
What are the molecular formula and molecular weight of 4-Chlorothieno[3,2-d]pyrimidine?
4-Chlorothieno[3,2-d]pyrimidine has molecular formula C6H3ClN2S and molecular weight 170.619 g/mol.
What are the upstream and downstream products of 4-Chlorothieno[3,2-d]pyrimidine?
For 4-Chlorothieno[3,2-d]pyrimidine, Upstream Products: thieno[3,2-d]pyrimidin-4(1H)-one, 1,1-Dichloroethane, Aqueous ammonia; Downstream Products: 4-Chloro-6-methylthieno[3,2-d]pyrimidine, thieno[3,2-d]pyrimidine, 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. "4-Chlorothieno[3,2-d]pyrimidine (CAS 16269-66-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-5869-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.