7-chloroquinazolin-4(3H)-one

7-氯-4(3H)-喹唑啉酮

Also known as: 7-chloroquinazolin-4-ol, 4(1H)-Quinazolinone, 7-chloro-, 4(3H)-Quinazolinone, 7-chloro-, 7-Chloro-3H-quinazolin-4-one, 7-Chloro-4(1H)-quinazolinone, 7-Chloro-4-hydroxyquinazoline, 7-chloro-1H-quinazolin-4-one, 7-chloro-3,4-dihydro-4-oxo-quinazoline, 7-chloro-3,4-dihydroquinazolin-4-one, 7-chloro-3-hydroquinazolin-4-one, 7-chloro-4-quinazolinol, 7-chloroquinazolin-4(3H)-one

7-chloroquinazolin-4(3H)-one (CAS 31374-18-2) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C8H5ClN2O and a molecular weight of 180.591 g/mol. It is also known as 7-chloroquinazolin-4-ol, 4(1H)-Quinazolinone, 7-chloro- and 4(3H)-Quinazolinone, 7-chloro-. Key properties include a melting point of 256 °C, a boiling point of 359.9±22.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 171.5±22.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
31374-18-2
Jingsj CID
J-1345067-6
Molecular Formula
C8H5ClN2O
Chinese Name
7-氯-4(3H)-喹唑啉酮
Molecular Weight
180.591 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point256 °C
Boiling Point359.9±22.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point171.5±22.3 °C

Frequently Asked Questions

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

The CAS number of 7-chloroquinazolin-4(3H)-one is 31374-18-2.

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

7-chloroquinazolin-4(3H)-one has molecular formula C8H5ClN2O and molecular weight 180.591 g/mol.

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

Last updated:

How to cite: Jingsj. "7-chloroquinazolin-4(3H)-one (CAS 31374-18-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1345067-6 (accessed 2026-10-22).

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