(Rac)-Moxifloxacin  (Synonyms: (Rac)-BAY 12-8039 free base)

(Rac)-Moxifloxacin ((Rac)-BAY 12-8039 free base) is the isoform of Moxifloxacin Hydrochloride (HY-66011), which is an oral 8-methoxyquinolone antimicrobial for use in the treatment of acute bacterial sinusitis, acute bacterial exacerbations of chronic bronchitis, and community-acquired pneumonia^[1][2].

The in vitro activities of Moxifloxacin Hydrochloride (BAY 12-8039) and Amoxicillin are compared by time-kill curve and inhibition of intracellular growth experiments by using a model of bone marrow-derived mouse macrophages infected by L. monocytogenes EGDe. Moxifloxacin acts much more rapidly, beginning to exert its effects in the first 3 h and achieving complete broth sterilization within 24 h of incubation. Moxifloxacin appears to have a protective effect against macrophage lysis, as many cells are still viable after 24 h of incubation^[3].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Moxifloxacin (BAY 12-8039; 12 mg/kg; intravenous injection; once-three times per day; for 7 days; white male Wistar rats) treatment every 8 hours is accompanied by longer survival. Tissue cultures 30 hours after bacterial challenge shows considerably less bacterial overgrowth in the spleens and lungs of moxifloxacin-treated than in salinetreated animals and without being toxic^[4].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

401.43

C₂₁H₂₄FN₃O₄

354812-41-2

Solid

Off-white to yellow

O=C(C1=CN(C2CC2)C3=C(C=C(F)C(N(C4)CC5C4CCCN5)=C3OC)C1=O)O

Room temperature in continental US; may vary elsewhere.

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

• [1]. Culley CM, et al. Moxifloxacin: clinical efficacy and safety. Am J Health Syst Pharm. 2001 Mar 1;58(5):379-88.  [Content Brief]

  [2]. Balfour JA, et al. Moxifloxacin: a review of its clinical potential in the management of community-acquired respiratory tract infections. Drugs. 2000 Jan;59(1):115-39.  [Content Brief]

  [3]. Grayo S, et al. Comparison of the in vitro efficacies of moxifloxacin and amoxicillin against Listeria monocytogenes. Antimicrob Agents Chemother. 2008 May;52(5):1697-702.  [Content Brief]

  [4]. Ioannidis O, et al. Effect of moxifloxacin on survival, lipid peroxidation and inflammation in immunosuppressed rats with soft tissue infection caused by Stenotrophomonas maltophilia. Microbiol Immunol. 2014 Feb;58(2):96-102.  [Content Brief]