![Molecular structure of 4-Chloro-2-(dichloromethyl)-5,6-dimethylthieno[2,3-d]pyrimidine (CAS 128276-98-2)](/images/chem_structures_svg/027/128276-98-2.svg)
4-Chloro-2-(dichloromethyl)-5,6-dimethylthieno[2,3-d]pyrimidine
Also known as: 4-CHLORO-2-(DICHLOROMETHYL)-5,6-DIMETHYLTHIENO[2,3-D]PYRIMIDINE, Thieno[2,3-d]pyrimidine, 4-chloro-2-(dichloromethyl)-5,6-dimethyl-
4-Chloro-2-(dichloromethyl)-5,6-dimethylthieno[2,3-d]pyrimidine (CAS 128276-98-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H7Cl3N2S and a molecular weight of 281.58900 g/mol. Key properties include a boiling point of 302.2ºC at 760 mmHg, a density of 1.532g/cm3 and a flash point of 136.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 128276-98-2
- Jingsj CID
- J-1341178-4
- Molecular Formula
- C9H7Cl3N2S
- Molecular Weight
- 281.58900 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 302.2ºC at 760 mmHg |
|---|---|
| Density | 1.532g/cm3 |
| Flash Point | 136.6ºC |
| Exact Mass | 279.94000 |
| PSA | 54.02000 |
| LogP | 4.43770 |
| Vapor Pressure | 0.0018mmHg at 25°C |
| Refractive Index | 1.659 |
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-Chloro-2-(dichloromethyl)-5,6-dimethylthieno[2,3-d]pyrimidine?
The CAS number of 4-Chloro-2-(dichloromethyl)-5,6-dimethylthieno[2,3-d]pyrimidine is 128276-98-2.
What are the molecular formula and molecular weight of 4-Chloro-2-(dichloromethyl)-5,6-dimethylthieno[2,3-d]pyrimidine?
4-Chloro-2-(dichloromethyl)-5,6-dimethylthieno[2,3-d]pyrimidine has molecular formula C9H7Cl3N2S and molecular weight 281.58900 g/mol.
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-(dichloromethyl)-5,6-dimethylthieno[2,3-d]pyrimidine (CAS 128276-98-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1341178-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.