5-Fluoroquinazolin-4(3H)-one

Also known as: 5-Fluoro-4-hydroxyquinazoline, 5-Fluoro-4-quinazolinol, 5-Fluoro-4-quinazolone, 5-Fluoroquinazolin-4(1H)-one, 4(3H)-Quinazolinone, 5-fluoro-, 3,4-Dihydro-5-fluoro-4-oxoquinazoline, 5-fluoro-1H-quinazolin-4-one, MFCD00173674

5-Fluoroquinazolin-4(3H)-one (CAS 436-72-6) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C8H5FN2O and a molecular weight of 164.137 g/mol. Key properties include a melting point of 238 °C, a boiling point of 328.2±22.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 152.3±22.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 436-72-6
Jingsj CID: J-1516840-8
Molecular Formula: C₈H₅FN₂O
Molecular Weight: 164.137 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	238 °C
Boiling Point	328.2±22.0 °C at 760 mmHg
Density	1.5±0.1 g/cm3
Flash Point	152.3±22.3 °C
Exact Mass	164.038589
PSA	46.01000
LogP	0.35
Vapor Pressure	0.0±0.7 mmHg at 25°C
Refractive Index	1.672

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-Fluoroquinazolin-4(3H)-one?

The CAS number of 5-Fluoroquinazolin-4(3H)-one is 436-72-6.

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

5-Fluoroquinazolin-4(3H)-one has molecular formula C8H5FN2O and molecular weight 164.137 g/mol.

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

For 5-Fluoroquinazolin-4(3H)-one, Upstream Products: 2-Amino-6-fluorobenzoic acid, Methanimidic acid, (Z)-, Triethyl orthoformate; Downstream Products: 4-Chloro-5-methoxyquinazoline, 5-Methoxyquinazolin-4(3H)-one, 4-chloro-5-fluoroquinazoline.

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-Fluoroquinazolin-4(3H)-one (CAS 436-72-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1516840-8 (accessed 2026-11-09).

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