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Ofloxacin is a second generation fluoroquinolone antibiotic. This compound is often given as a topical treatment for ocular and otic infections. Like other fluoroquinolones, ofloxacin inhibits DNA gyrase and topoisomerase IV; it exhibits antibacterial efficacy against both gram positive and gram negative bacteria. Under UV light, ofloxacin exhibits phototoxicity, disputing the mitochondrial membrane potential and inducing ROS-mediated DNA damage.
| Cas No. | 82419-36-1 |
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| Purity | ≥98% |
| Formula | C18H20FN3O4 |
| Formula Wt. | 361.37 |
| Chemical Name | 7H-Pyrido(1,2,3-de)-1,4-benzoxazine-6-carboxylic acid, 2,3- dihydro-9-fluoro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo- , (+-)- |
| IUPAC Name | 7-fluoro-2-methyl-6-(4-methylpiperazin-1-yl)-10-oxo-4-oxa-1-azatricyclo[7.3.1.05,13]trideca-5(13),6,8,11-tetraene-11-carboxylic acid |
| Synonym | Floxin, Ofloxacin,Tarivid |
| Melting Point | 250-257°C (dec.) |
| Solubility | Slightly soluble in water, DMSO, methanol, chloroform. Soluble in 1M NaOH (50 mg/mL). |
| Appearance | Off White Crystal Powder |
| Store Temp | Ambient |
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| Ship Temp | Ambient |
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| Info Sheet |
Dwivedi A, Mujtaba SF, Yadav N, et al. Cellular and molecular mechanism of ofloxacin induced apoptotic cell death under ambient UV-A and sunlight exposure. Free Radic Res. 2014 Mar;48(3):333-46. PMID: 24286391.
Pantel A, Petrella S, Matrat S, et al. DNA gyrase inhibition assays are necessary to demonstrate fluoroquinolone resistance secondary to gyrB mutations in Mycobacterium tuberculosis. Antimicrob Agents Chemother. 2011 Oct;55(10):4524-9. PMID: 21768507.
Drlica K, Zhao X. DNA gyrase, topoisomerase IV, and the 4-quinolones. Microbiol Mol Biol Rev. 1997 Sep;61(3):377-92. PMID: 9293187.