2-mercapto-3-methylquinazolin-4(3H)-one
2-巯基-3-甲基-3H-喹唑啉-4-酮
Also known as: 3-methyl-2-sulfanylidene-1H-quinazolin-4-one, 2-mercapto-3-methyl-3H-quinazolin-4-one, 2,3-dihydro-3-methyl-2-thioxo-4(1H)-quinazolinone, 3-methyl-2-thioxo-2,3-dihydro-1H-quinazolin-4-one
2-mercapto-3-methylquinazolin-4(3H)-one (CAS 1705-09-5) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C9H8N2OS and a molecular weight of 192.23800 g/mol. It is also known as 3-methyl-2-sulfanylidene-1H-quinazolin-4-one, 2-mercapto-3-methyl-3H-quinazolin-4-one and 2,3-dihydro-3-methyl-2-thioxo-4(1H)-quinazolinone. Key properties include a boiling point of 324.6ºC at 760 mmHg, a density of 1.4 g/cm3 and a flash point of 150.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1705-09-5
- Jingsj CID
- J-1013643-8
- Molecular Formula
- C9H8N2OS
- Chinese Name
- 2-巯基-3-甲基-3H-喹唑啉-4-酮
- Molecular Weight
- 192.23800 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 324.6ºC at 760 mmHg |
|---|---|
| Density | 1.4 g/cm3 |
| Flash Point | 150.1ºC |
Frequently Asked Questions
What is the CAS number of 2-mercapto-3-methylquinazolin-4(3H)-one?
The CAS number of 2-mercapto-3-methylquinazolin-4(3H)-one is 1705-09-5.
What are the molecular formula and molecular weight of 2-mercapto-3-methylquinazolin-4(3H)-one?
2-mercapto-3-methylquinazolin-4(3H)-one has molecular formula C9H8N2OS and molecular weight 192.23800 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2-mercapto-3-methylquinazolin-4(3H)-one (CAS 1705-09-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1013643-8 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.