Pefloxacin mesylate dihydrate CAS: 149676-40-4
MF: C17H20FN3O3 CH4O3S 2H2O
MW: 465.50
An analog of norfloxacin that inhibits topoisomerase.

Pefloxacin mesylate dihydrate (CAS 149676-40-4)

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Application: An analog of norfloxacin that inhibits topoisomerase
CAS Number: 149676-40-4
Purity: ≥98%
Molecular Weight: 465.50
Molecular Formula: C17H20FN3O3 CH4O3S 2H2O
* Refer to Certificate of Analysis for lot specific data (including water content).
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Pefloxacin mesylate dihydrate is an analog of norfloxacin. Fluoroquinolone antibacterial agent and prevents bacterial DNA replication by inhibiting Topo II α (DNA gyrase). Very effective against Staphylococcus aureus, E. coli, other enterobacteria and Pseudomonas aeruginosa. High effect.


Absorption, distribution, metabolic fate, and elimination of pefloxacin mesylate in mice, rats, dogs, monkeys, and humans: G. Montay, et al.; Antimicrob. Agents Chemother. 25, 463 (1984) Activity of pefloxacin and thirteen other antimicrobial agents in vitro against isolates from hospital and genitourinary infections: B.M. Jones, et al.; J. Antimicrob. Chemother. 17, 739 (1986) In vitro activity of pefloxacin against gram-negative and gram-positive bacteria in comparison with other antibiotics: E. Debbia, et al.; Chemioterapia 6, 319 (1987) Studies on prodrugs. 7. Synthesis and antimicrobial activity of 3-formylquinolone derivatives: H. Kondo, et al.; J. Med. Chem. 31, 221 (1988) In vitro effects of ciprofloxacin and pefloxacin on growth of normal human hematopoietic progenitor cells and on leukemic cell lines: E. Somekh, et al.; J. Pharmacol. Exp. Ther. 248, 415 (1989) Binding interactions of pefloxacin mesylate with bovine lactoferrin and human serum albumin: J.C. Fan, et al.; J. Zhejiang Univ. Sci. B. 7, 452 (2006) Spectrophotometric determination of pefloxacin mesylate in pharmaceuticals: K. Basavaiah, et al.; Acta Pharm. 57, 221 (2007)

Physical State :
Solubility :
Soluble in DMSO (9 mg/ml at 25° C), water (67 mg/ml at 25° C), and ethanol (<1 mg/ml at 25° C).
Storage :
Store at -20° C
Boiling Point :
529.1° C at 760 mmHg (Predicted)
Refractive Index :
n20D 1.59 (Predicted)
IC50 :
DNA gyrase: IC50 = 11.82 µM (Escherichia coli K-12); Mycobacterium leprae recombinant DNA gyrase expressed in Escherichia coli : IC50 = 49.41 µM; V79: IC50 = 1.07 mM (Cricetulus griseus)
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
WGK Germany :
PubChem CID :
Merck Index :
14: 7066
MDL Number :
EC Number :

Download SDS (MSDS)

Certificate of Analysis

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