Name: Moxifloxacin (BAY12-8039) HCl
Brand: Selleck Chemicals
SKU: S1465
Availability: InStock
Rating: 5 (10 reviews)

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Quality Control

Batch: Purity: 99.87%

99.87

Related Targets	HDAC PARP ATM/ATR DNA-PK WRN DNA/RNA Synthesis PPAR Sirtuin Casein Kinase eIF
Other Topoisomerase Inhibitors	Camptothecin (CPT) Betulinic acid (S)-10-Hydroxycamptothecin Beta-Lapachone Ellagic acid Amonafide Voreloxin (SNS-595) hydrochloride Hydroxy Camptothecine Cu(II)-Elesclomol Genz-644282

Solubility

In vitro
Batch:

DMSO : 88 mg/mL (200.96 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : 18 mg/mL

Ethanol : Insoluble

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
Mass value Mass unit	Concentration value Concentration unit	Volume value Volume unit	Molecular weight (g/mol)

Dilution Calculator Molecular Weight Calculator

In vivo batch selection In vivo Batch:
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Clear solution	30%PEG400 1 0.5%Tween80 2 5%propylene glycol Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	30.000mg/ml (68.51mM)	Taking the 1 mL working solution as an example, add 300 μL of 100 mg/ml clarified PEG400 stock solution to 5 μL of Tween80, mix evenly to clarify it; add 50 μL Propylene glycol to the above system, mix evenly to clarify it; then continue to add 645 μL ddH2O to adjust the volume. to 1 mL. The mixed solution should be used immediately for optimal results.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.

In vivo Formulation Calculator (Clear solution)

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

Dosage: mg/kg

Average weight of animals: g

Dosing volume per animal: μL

Number of animals:

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO

%

% Tween 80

% ddH₂O

% DMSO

+

%

Calculation results:

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.

Chemical Information, Storage & Stability

Molecular Weight	437.89	Formula	C₂₁H₂₄FN₃O₄.HCl	Storage (From the date of receipt)	3 years-20°Cpowder
CAS No.	186826-86-8	Download SDF		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	Avelox, Avalox,BAY12-8039 HCl			SMILES	COC1=C2C(=CC(=C1N3CC4CCCNC4C3)F)C(=O)C(=CN2C5CC5)C(=O)O.Cl

Read more about storage stability stock solution CAS number SMILES

Mechanism of Action

Targets/IC₅₀/Ki	Topoisomerase II Topoisomerase IV
In vitro	Moxiﬂoxacin exerts its effects by trapping a DNA drug enzyme complex and speciﬁcally inhibiting ATP-dependent enzymes topoisomerase II (DNA gyrase) and topoisomerase IV. Moxiﬂoxacin shows in-vitro potency against M. tuberculosis H37Rv with MIC of 0.177 μg/mL. Moxiﬂoxacin has broad Grampositive and Gram-negative activity. Moxiﬂoxacin shows in vitro and clinical efﬁcacy against Staphylococcus aureus, Streptococcus pneumoniae, Str. pyogenes, Haemophilus inﬂuenzae, H. parainﬂuenzae, Klebsiella pneumoniae, Moraxella catarrhalis, Chlamydia pneumoniae and Mycoplasma pneumoniae. Moxiﬂoxacin has activity against mycobacteria in addition to M. tuberculosis; Moxiﬂoxacin is more active against M. kansasii than M. avium complex: speciﬁcally MIC90 for M. avium > M. intracellulare > M. kansasii at 4, 2 and 2 μg/mL, respectively. MIC90 for M. chelonae > M. fortuitum at 16 and 0.5 μg/mL, respectively.
In vivo	Moxiﬂoxacin combined with RIF/pyrazinamide (PZA) reduces treatment time by up to 2 months compared to regimens with isoniazid (INH)/RIF/PZA in a mouse model designed to mimic human disease. Similar results with a stable cure are reached after 4 months in mice treated twice weekly with RIF/Moxiﬂoxacin/PZA compared to cure in 6 months when daily treated with RIF/INH/PZA. 100 mg/kg Moxiﬂoxacin in mice gives activity comparable to INH; increased dose in mice to 400 mg/kg Moxiﬂoxacin daily results in spleen CFU counts lower than for INH 25 mg/kg although the differences are not statistically signiﬁcant. AUC/MIC ratio correlates best with in-vivo efﬁcacy for the ﬂuoroquinolones in a mouse model of tuberculosis.
References	[1] https://pubmed.ncbi.nlm.nih.gov/18486050/

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2026-09-02)

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
NCT06441006	RECRUITING	Tuberculosis, Pulmonary; Tuberculosis, Multidrug-Resistant; Tuberculosis, MDR	University of California, San Francisco	2025-10-03	PHASE2; PHASE3
NCT07485010	NOT_YET_RECRUITING	Mycobacterium Abscessus Pulmonary Disease; Mycobacterium Abscessus Infection; Non-Tuberculous Mycobacterial (NTM) Infections; Non-Tuberculous Mycobacteria Pulmonary Disease	The University of Queensland	2027-04	PHASE2
NCT03244072	NOT_YET_RECRUITING	Endophthalmitis	Jason Ahee, M.D.	2026-06-01	PHASE2; PHASE3
NCT04310930	RECRUITING	Pulmonary Disease Due to Mycobacteria (Diagnosis)	The University of Queensland	2020-03-02	PHASE2; PHASE3
NCT07595042	NOT_YET_RECRUITING	Tuberculosis	National Institute of Allergy and Infectious Diseases (NIAID)	2026-10-30	PHASE2
NCT07585461	NOT_YET_RECRUITING	Opportunistic Infections, HIV Related; Disseminated Mycobacterium Avium Complex Infection	Shanghai Public Health Clinical Center	2026-04-30

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Moxifloxacin (BAY12-8039) HCl Topoisomerase inhibitor

Chemical Structure

Molecular Weight: 437.89