4-chloro-5-(thiophen-2-yl)thieno[2,3-d]pyrimidine
4-氯-5-(2-噻吩基)噻吩并[2,3-d]嘧啶
Also known as: 4-Chloro-5-(2-thienyl)thieno[2,3-d]pyrimidine, 4-chloro-5-thiophen-2-ylthieno[2,3-d]pyrimidine, 4-Chloro-5-thien-2-ylthieno[2,3-d]pyrimidine, Thieno[2,3-d]pyrimidine,4-chloro-5-(2-thienyl)-
4-chloro-5-(thiophen-2-yl)thieno[2,3-d]pyrimidine (CAS 189681-04-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H5ClN2S2 and a molecular weight of 252.74300 g/mol. It is also known as 4-Chloro-5-(2-thienyl)thieno[2,3-d]pyrimidine, 4-chloro-5-thiophen-2-ylthieno[2,3-d]pyrimidine and 4-Chloro-5-thien-2-ylthieno[2,3-d]pyrimidine. Key properties include a melting point of 110ºC, a boiling point of 420.3ºC at 760mmHg, a density of 1.52g/cm3 and a flash point of 208ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 189681-04-7
- Jingsj CID
- J-1026692-6
- Molecular Formula
- C10H5ClN2S2
- Chinese Name
- 4-氯-5-(2-噻吩基)噻吩并[2,3-d]嘧啶
- Molecular Weight
- 252.74300 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 110ºC |
|---|---|
| Boiling Point | 420.3ºC at 760mmHg |
| Density | 1.52g/cm3 |
| Flash Point | 208ºC |
Frequently Asked Questions
What is the CAS number of 4-chloro-5-(thiophen-2-yl)thieno[2,3-d]pyrimidine?
The CAS number of 4-chloro-5-(thiophen-2-yl)thieno[2,3-d]pyrimidine is 189681-04-7.
What are the molecular formula and molecular weight of 4-chloro-5-(thiophen-2-yl)thieno[2,3-d]pyrimidine?
4-chloro-5-(thiophen-2-yl)thieno[2,3-d]pyrimidine has molecular formula C10H5ClN2S2 and molecular weight 252.74300 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-chloro-5-(thiophen-2-yl)thieno[2,3-d]pyrimidine (CAS 189681-04-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1026692-6 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.