7-Methylquinazolin-4(3H)-one

7-甲基-4(3H)-喹唑啉酮

Also known as: 7-Methyl-4(3H)-quinazolinone, 7-Methyl-4(1H)-quinazolinone, 7-Methylquinazolin-4(1H)-one, 7-methyl-1H-quinazolin-4-one, 4(3H)-Quinazolinone, 7-methyl-, 7-METHYL-1H-QUINAZOLIN-4-ONE, 7-METHYL-4(3H)-QUINAZOLINONE, 7-METHYLQUINAZOLIN-4(1H)-ONE, 7-methylquinazolin-4(3H)-one

7-Methylquinazolin-4(3H)-one (CAS 75844-40-5) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C9H8N2O and a molecular weight of 160.173 g/mol. It is also known as 7-Methyl-4(3H)-quinazolinone, 7-Methyl-4(1H)-quinazolinone and 7-Methylquinazolin-4(1H)-one. Key properties include a boiling point of 386.7±21.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 187.6±22.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
75844-40-5
Jingsj CID
J-1081208-0
Molecular Formula
C9H8N2O
Chinese Name
7-甲基-4(3H)-喹唑啉酮
Molecular Weight
160.173 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point386.7±21.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point187.6±22.1 °C

Frequently Asked Questions

What is the CAS number of 7-Methylquinazolin-4(3H)-one?

The CAS number of 7-Methylquinazolin-4(3H)-one is 75844-40-5.

What are the molecular formula and molecular weight of 7-Methylquinazolin-4(3H)-one?

7-Methylquinazolin-4(3H)-one has molecular formula C9H8N2O and molecular weight 160.173 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "7-Methylquinazolin-4(3H)-one (CAS 75844-40-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1081208-0 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.