6-Fluoroquinoxalin-2(1H)-one

Also known as: 2(1H)-Quinoxalinone, 6-fluoro-, 6-fluoro-1,2-dihydroquinoxalin-2-one, 6-fluoroquinoxalin-2-ol, 6-fluoro-1H-quinoxalin-2-one

6-Fluoroquinoxalin-2(1H)-one (CAS 55687-23-5) 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 300-302°C and a density of 1.4±0.1 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 55687-23-5
Jingsj CID: J-1365331-1
Molecular Formula: C₈H₅FN₂O
Molecular Weight: 164.137 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	300-302°C
Density	1.4±0.1 g/cm3
Exact Mass	164.038589
PSA	45.75000
LogP	0.85
Refractive Index	1.642

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 6-Fluoroquinoxalin-2(1H)-one?

The CAS number of 6-Fluoroquinoxalin-2(1H)-one is 55687-23-5.

What are the molecular formula and molecular weight of 6-Fluoroquinoxalin-2(1H)-one?

6-Fluoroquinoxalin-2(1H)-one has molecular formula C8H5FN2O and molecular weight 164.137 g/mol.

What are the upstream and downstream products of 6-Fluoroquinoxalin-2(1H)-one?

For 6-Fluoroquinoxalin-2(1H)-one, Upstream Products: Ethyl glyoxylate, 4-Fluoro-1,2-phenylenediamine, 2,4-Difluoronitrobenzene; Downstream Products: 2-Chloro-7-fluoroquinoxaline, 2-Chloro-6-fluoroquinoxaline, 6-Fluoro-7-nitro-2(1H)-quinoxalinone.

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. "6-Fluoroquinoxalin-2(1H)-one (CAS 55687-23-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1365331-1 (accessed 2026-11-09).

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