Catalog No.S4150

For research use only.

Orbifloxacin is a synthetic broad-spectrum fluoroquinolone antibiotic.

Orbifloxacin Chemical Structure

CAS No. 113617-63-3

Purity & Quality Control

Choose Selective Antibiotics Inhibitors

Biological Activity

Description Orbifloxacin is a synthetic broad-spectrum fluoroquinolone antibiotic.
In vitro

Orbifloxacin is a third generation of fluoroquinolone that exhibits increased antibacterial activity against the Enterobacteriaceae, gram-negative and gram-positive bacteria, anaerobes, and mycobacteria. The minimum inhibitory concentrations (MICs) of Orbifloxacin against 240 field S. intermedius isolates (69 skin and 171 ear isolates) ranges from 0.016 to 8 mg/L, with MIC50 and MIC90 equal to 0.5 and 1 mg/L, respectively. [1]

Protocol (from reference)

Solubility (25°C)

In vitro

DMSO 0.05 mg/mL
(0.12 mM)
Water Insoluble
Ethanol Insoluble

Chemical Information

Molecular Weight 395.38


CAS No. 113617-63-3
Storage 3 years -20°C powder
2 years -80°C in solvent
Smiles CC1CN(CC(N1)C)C2=C(C3=C(C(=C2F)F)C(=O)C(=CN3C4CC4)C(=O)O)F

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

mg/kg g μL

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% DMSO % % Tween 80 % ddH2O

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Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such
as vortex, ultrasound or hot water bath can be used to aid dissolving.

Molarity Calculator

Mass Concentration Volume Molecular Weight

Tech Support

Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

Handling Instructions

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