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Fleroxacin

Also known as: AM-833, Ro 23-6240, Megalocin, Megalone, Quinodis, 6,8-difluoro-1-(2-fluoroethyl)-1,4-dihydro-7-(4-methyl-1-piperazinyl)-4-oxo-3-quinolinecarboxylic acid, 6,8-difluoro-1-(2-fluoroethyl)-7-(4-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid

Fleroxacin (CAS 79660-72-3) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C17H18F3N3O3 and a molecular weight of 369.338 g/mol. Key properties include a melting point of 264-266°C, a boiling point of 535.3±50.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 277.6±30.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
79660-72-3
Jingsj CID
J-19536-4
Molecular Formula
C17H18F3N3O3
Molecular Weight
369.338 g/mol
Category
Organohalogen Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point264-266°C
Boiling Point535.3±50.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point277.6±30.1 °C
Exact Mass369.130035
PSA65.78000
LogP1.72
Vapor Pressure0.0±1.5 mmHg at 25°C
Refractive Index1.568

Activity & Biological Data

Additional Information[1]. Weidekamm, E., et al., Single- and multiple-dose pharmacokinetics of fleroxacin, a trifluorinated quinolone, in humans. Antimicrob Agents Chemother, 1987. 31(12): p. 1909-14. [2]. MacDonald, K.S., et al., Evaluation of fleroxacin (RO 23-6240) as single-oral-dose therapy of culture-proven chancroid in Nairobi, Kenya. Antimicrob Agents Chemother, 1989. 33(5): p. 612-4. [3]. Rubinstein, E., History of quinolones and their side effects. Chemotherapy, 2001. 47 Suppl 3: p. 3-8; discussion 44-8.

Customs & Trade Information

HS Code2933990090
Summary2933990090. 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 Fleroxacin?

The CAS number of Fleroxacin is 79660-72-3.

What are the molecular formula and molecular weight of Fleroxacin?

Fleroxacin has molecular formula C17H18F3N3O3 and molecular weight 369.338 g/mol.

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

Last updated:

How to cite: Jingsj. "Fleroxacin (CAS 79660-72-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-19536-4 (accessed 2026-11-07).

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