5-Chloroquinazolin-4(3H)-one

Also known as: 5-Chloro-4(1H)-quinazolinone, 5-Chloro-3H-quinazolin-4-one, 5-Chloroquinazolin-4(1H)-one, 5-Chloro-4-quinazolone, 5-chloroquinazolin-4-ol, 4(3H)-Quinazolinone, 5-chloro-, 5-Chloro-3,4-dihydro-4-oxoquinazoline

5-Chloroquinazolin-4(3H)-one (CAS 60233-66-1) 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. Key properties include a boiling point of 408.8±28.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 201.0±24.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 60233-66-1
Jingsj CID: J-994935-3
Molecular Formula: C₈H₅ClN₂O
Molecular Weight: 180.591 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	408.8±28.0 °C at 760 mmHg
Density	1.5±0.1 g/cm3
Flash Point	201.0±24.0 °C
Exact Mass	180.009033
PSA	45.75000
LogP	1.37
Vapor Pressure	0.0±1.0 mmHg at 25°C
Refractive Index	1.688

Customs & Trade Information

HS Code	2933990090
Summary	2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 5-Chloroquinazolin-4(3H)-one?

The CAS number of 5-Chloroquinazolin-4(3H)-one is 60233-66-1.

What are the molecular formula and molecular weight of 5-Chloroquinazolin-4(3H)-one?

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

What are the upstream and downstream products of 5-Chloroquinazolin-4(3H)-one?

For 5-Chloroquinazolin-4(3H)-one, Upstream Products: 2-Amino-6-chlorobenzoic acid, Methanimidic acid, (Z)-, N-(3-Chloro-2-methylphenyl)acetamide; Downstream Products: 5-chloro-8-nitro-1H-quinazolin-4-one.

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

Last updated: 8/21/2026

How to cite: Jingsj. "5-Chloroquinazolin-4(3H)-one (CAS 60233-66-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-994935-3 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.