4-(4-Fluorophenyl)-1H-1,2,4-triazol-5(4H)-one

Also known as: 4-(4-Fluorophenyl)-2,4-dihydro-3H-1,2,4-triazol-3-one, 3H-1,2,4-Triazol-3-one, 4-(4-fluorophenyl)-2,4-dihydro-, 4-(4-fluorophenyl)-2H-1,2,4-triazol-3-one

4-(4-Fluorophenyl)-1H-1,2,4-triazol-5(4H)-one (CAS 80240-40-0) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C8H6FN3O and a molecular weight of 179.15100 g/mol. Key property: a density of 1.437 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 80240-40-0
Jingsj CID: J-1346049-6
Molecular Formula: C₈H₆FN₃O
Molecular Weight: 179.15100 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Density	1.437 g/cm3
Exact Mass	179.04900
PSA	50.68000
LogP	0.69970

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 4-(4-Fluorophenyl)-1H-1,2,4-triazol-5(4H)-one?

The CAS number of 4-(4-Fluorophenyl)-1H-1,2,4-triazol-5(4H)-one is 80240-40-0.

What are the molecular formula and molecular weight of 4-(4-Fluorophenyl)-1H-1,2,4-triazol-5(4H)-one?

4-(4-Fluorophenyl)-1H-1,2,4-triazol-5(4H)-one has molecular formula C8H6FN3O and molecular weight 179.15100 g/mol.

What are the upstream and downstream products of 4-(4-Fluorophenyl)-1H-1,2,4-triazol-5(4H)-one?

For 4-(4-Fluorophenyl)-1H-1,2,4-triazol-5(4H)-one, Upstream Products: Methyl carbazate, 4-Fluoroaniline, Trimethyl orthoformate.

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. "4-(4-Fluorophenyl)-1H-1,2,4-triazol-5(4H)-one (CAS 80240-40-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1346049-6 (accessed 2026-11-09).

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