4-Chloro-6-methylthieno[2,3-d]pyrimidine
4-氯-6-甲基噻吩并[2,3-d]嘧啶
Also known as: Thieno[2,3-d]pyrimidine, 4-chloro-6-methyl-, 6-Methyl-4-chlorothieno[2,3-d]pyrimidine, 4-chloro-6-methylthieno<2,3-d>pyrimidine, RW3777, AKOS 92593
4-Chloro-6-methylthieno[2,3-d]pyrimidine (CAS 106691-21-8) 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. It is also known as Thieno[2,3-d]pyrimidine, 4-chloro-6-methyl-, 6-Methyl-4-chlorothieno[2,3-d]pyrimidine and 4-chloro-6-methylthieno<2,3-d>pyrimidine. Key properties include a melting point of 88-91℃ (sublm), a boiling point of 301.3±37.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 136.0±26.5 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 106691-21-8
- Jingsj CID
- J-1307770-5
- Molecular Formula
- C7H5ClN2S
- Chinese Name
- 4-氯-6-甲基噻吩并[2,3-d]嘧啶
- Molecular Weight
- 184.646 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 88-91℃ (sublm) |
|---|---|
| Boiling Point | 301.3±37.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 136.0±26.5 °C |
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of 4-Chloro-6-methylthieno[2,3-d]pyrimidine?
The CAS number of 4-Chloro-6-methylthieno[2,3-d]pyrimidine is 106691-21-8.
What are the molecular formula and molecular weight of 4-Chloro-6-methylthieno[2,3-d]pyrimidine?
4-Chloro-6-methylthieno[2,3-d]pyrimidine has molecular formula C7H5ClN2S and molecular weight 184.646 g/mol.
Is 4-Chloro-6-methylthieno[2,3-d]pyrimidine hazardous?
4-Chloro-6-methylthieno[2,3-d]pyrimidine has GHS signal word Warning.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Chloro-6-methylthieno[2,3-d]pyrimidine (CAS 106691-21-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1307770-5 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.