5-Methylthieno[2,3-d]pyrimidin-4(3H)-one
5-甲基-3,4-二氢噻吩并[2,3-d]嘧啶-4-酮
Also known as: 5-Methyl-3,4-dihydrothieno[2,3-d]pyrimidin-4-one, 5-Methyl-3H-thieno[2,3-d]pyrimidin-4-one, Thieno[2,3-d]pyrimidin-4(1H)-one, 5-methyl-, MFCD00205193
5-Methylthieno[2,3-d]pyrimidin-4(3H)-one (CAS 43088-64-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H6N2OS and a molecular weight of 166.20000 g/mol. It is also known as 5-Methyl-3,4-dihydrothieno[2,3-d]pyrimidin-4-one, 5-Methyl-3H-thieno[2,3-d]pyrimidin-4-one and Thieno[2,3-d]pyrimidin-4(1H)-one, 5-methyl-. Key properties include a boiling point of 403.9ºC at 760mmHg, a density of 1.53g/cm3 and a flash point of 198.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 43088-64-8
- Jingsj CID
- J-46694-9
- Molecular Formula
- C7H6N2OS
- Chinese Name
- 5-甲基-3,4-二氢噻吩并[2,3-d]嘧啶-4-酮
- Molecular Weight
- 166.20000 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 403.9ºC at 760mmHg |
|---|---|
| Density | 1.53g/cm3 |
| Flash Point | 198.1ºC |
Frequently Asked Questions
What is the CAS number of 5-Methylthieno[2,3-d]pyrimidin-4(3H)-one?
The CAS number of 5-Methylthieno[2,3-d]pyrimidin-4(3H)-one is 43088-64-8.
What are the molecular formula and molecular weight of 5-Methylthieno[2,3-d]pyrimidin-4(3H)-one?
5-Methylthieno[2,3-d]pyrimidin-4(3H)-one has molecular formula C7H6N2OS and molecular weight 166.20000 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5-Methylthieno[2,3-d]pyrimidin-4(3H)-one (CAS 43088-64-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-46694-9 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.