![Molecular structure of 4-Chloro-2-methylthieno[2,3-d]pyrimidine (CAS 56843-79-9)](/images/chem_structures_svg/121/56843-79-9.svg)
4-Chloro-2-methylthieno[2,3-d]pyrimidine
Also known as: 4-CHLORO-2-METHYL-THIENO[2,3-D]PYRIMIDINE, 4-chloro-2-methylthieno[2,3-d]pyrimidine, Thieno[2,3-d]pyrimidine, 4-chloro-2-methyl-, 4-chloro-2-methyl-thieno[2,3-d]pyrimidin
4-Chloro-2-methylthieno[2,3-d]pyrimidine (CAS 56843-79-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H5ClN2S and a molecular weight of 184.646 g/mol. Key properties include a boiling point of 208.1±22.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 79.7±22.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 56843-79-9
- Jingsj CID
- J-1000448-5
- Molecular Formula
- C7H5ClN2S
- Molecular Weight
- 184.646 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 208.1±22.0 °C at 760 mmHg |
|---|---|
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 79.7±22.3 °C |
| Exact Mass | 183.986191 |
| PSA | 54.02000 |
| LogP | 2.67 |
| Vapor Pressure | 0.3±0.4 mmHg at 25°C |
| Refractive Index | 1.682 |
Frequently Asked Questions
What is the CAS number of 4-Chloro-2-methylthieno[2,3-d]pyrimidine?
The CAS number of 4-Chloro-2-methylthieno[2,3-d]pyrimidine is 56843-79-9.
What are the molecular formula and molecular weight of 4-Chloro-2-methylthieno[2,3-d]pyrimidine?
4-Chloro-2-methylthieno[2,3-d]pyrimidine has molecular formula C7H5ClN2S and molecular weight 184.646 g/mol.
What are the upstream and downstream products of 4-Chloro-2-methylthieno[2,3-d]pyrimidine?
For 4-Chloro-2-methylthieno[2,3-d]pyrimidine, Upstream Products: 2-Methylthieno[2,3-d]pyrimidin-4(3H)-one; Downstream Products: 2-Methylthieno[2,3-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-Chloro-2-methylthieno[2,3-d]pyrimidine (CAS 56843-79-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1000448-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.