Flumequine

Also known as: 9-Fluoro-6,7-dihydro-5-methyl-1-oxo-1H,5H-benzo[ij]quinolizine-2-carboxylic acid, 9-Fluoro-1,5,6,7-tetrahydro-5-methyl-1-oxopyrido[3,2,1-ij]quinoline-2-carboxylic acid, 9-Fluoro-5-methyl-1-oxo-1,5,6,7-tetrahydropyrido[3,2,1-ij]quinoline-2-carboxylic acid, 9-Fluoro-5-methyl-1-oxo-6,7-dihydro-1H,5H-pyrido[3,2,1-ij]quinoline-2-carboxylic acid, 1H,5H-Benzo[ij]quinolizine-2-carboxylic acid, 9-fluoro-6,7-dihydro-5-methyl-1-oxo-, FLUMEQUIN, FLUMEQUINE PESTANAL, 250 MG, FLUMEQUINE STANDARD SOLUTION, Apurone, Aoyribe, Fantacin, Flumural, Imequyl, Quinolone, R 802

Flumequine (CAS 42835-25-6) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C14H12FNO3 and a molecular weight of 261.248 g/mol. Key properties include a melting point of 253-255°C, a boiling point of 439.7±45.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 219.7±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 42835-25-6
Jingsj CID: J-11427-5
Molecular Formula: C₁₄H₁₂FNO₃
Molecular Weight: 261.248 g/mol
Category: Organohalogen Compounds
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	253-255°C
Boiling Point	439.7±45.0 °C at 760 mmHg
Density	1.5±0.1 g/cm3
Flash Point	219.7±28.7 °C
Exact Mass	261.080109
PSA	59.30000
LogP	2.41
Vapor Pressure	0.0±1.1 mmHg at 25°C
Refractive Index	1.646

Activity & Biological Data

Target	Topoisomerase II:15 μM (IC50)
Additional Information	[1]. Kashida Y, et al. Mechanistic study on flumequine hepatocarcinogenicity focusing on DNA damage in mice. Toxicol Sci. 2002 Oct;69(2):317-21. [2]. Aller-Morán LM, et al. Evaluation of the in vitro activity of flumequine against field isolates of Brachyspira hyodysenteriae. Res Vet Sci. 2015 Dec;103:51-3. [3]. Giraud E, et al. Mechanisms of quinolone resistance and clonal relationship among Aeromonas salmonicida strains isolated from reared fish with furunculosis. J Med Microbiol. 2004 Sep;53(Pt 9):895-901.

Target

Topoisomerase II:15 μM (IC50)

Additional Information

[1]. Kashida Y, et al. Mechanistic study on flumequine hepatocarcinogenicity focusing on DNA damage in mice. Toxicol Sci. 2002 Oct;69(2):317-21. [2]. Aller-Morán LM, et al. Evaluation of the in vitro activity of flumequine against field isolates of Brachyspira hyodysenteriae. Res Vet Sci. 2015 Dec;103:51-3. [3]. Giraud E, et al. Mechanisms of quinolone resistance and clonal relationship among Aeromonas salmonicida strains isolated from reared fish with furunculosis. J Med Microbiol. 2004 Sep;53(Pt 9):895-901.

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 Flumequine?

The CAS number of Flumequine is 42835-25-6.

What are the molecular formula and molecular weight of Flumequine?

Flumequine has molecular formula C14H12FNO3 and molecular weight 261.248 g/mol.

What are the upstream and downstream products of Flumequine?

For Flumequine, Upstream Products: 6-Fluoro-1,2,3,4-tetrahydro-2-methylquinoline, Diethyl ethoxymethylenemalonate, 5-(Methoxymethylene)-2,2-dimethyl-1,3-dioxane-4,6-dione.

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. "Flumequine (CAS 42835-25-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-11427-5 (accessed 2026-11-06).

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