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Lomefloxacin hydrochloride_Molecular_structure_CAS_98079-52-8)
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Lomefloxacin hydrochloride

Catalog No. L2906 Name Sigma Aldrich
CAS Number 98079-52-8 Website http://www.sigmaaldrich.com
M. F. C17H20ClF2N3O3 Telephone 1-800-521-8956
M. W. 387.8088064 Fax
Purity Email
Storage Chembase ID: 70344


IUPAC name
1-ethyl-6,8-difluoro-7-(3-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid hydrochloride
IUPAC Traditional name
lomefloxacin hydrochloride
1-Ethyl-6,8-difluoro-1,4-dihydro-7-(3-methyl-1-piperazinyl)-4-oxo-3-quinolinecarboxylic acid


CAS Number 98079-52-8
PubChem SID 24278514
MDL Number MFCD00214312


Suitability suitable for 1694 per US EPA
GHS Pictograms GHS07
GHS Signal Word Warning
GHS Hazard statements H302
European Hazard Symbols Harmful Harmful (Xn)
Personal Protective Equipment dust mask type N95 (US), Eyeshields, Gloves
Risk Statements 22
RTECS VB1997500
Storage Temperature -20°C
German water hazard class 3


Description (English)
Lomefloxacin is a fluoroquinolone antibiotic that is commonly used to treat bacterial infections, including bronchitis and urinary tract infections. It is used as a pre-operative prophylactic to prevent urinary tract infection caused by S. pneumoniae, H. influenzae, S. aureus, P. aeruginosa, E. cloacae, P. mirabilis, C. civersus, S. asprphyticus, E. coli, and K. pneumoniae. It is used to induce genomic instability in mice1 and modification of the kinetics of growth of Gram-negative bacteria2.
Biochem/physiol Actions
Lomefloxacin inhibits bacterial DNA gyrase (topoisomerase II) and topoisomerase IV.
Lomefloxacin is a bactericidal fluoroquinolone agent that is active against gram-negative and gram-positive organisms. Lomefloxacin inhibits bacterial DNA gyrase (topoisomerase II) and topoisomerase IV, which are needed for the transcription and replication of bacterial DNA. DNA gyrase is thought to be the primary quinolone target for gram-negative bacteria. Topoisomerase IV is thought to be the primary target in gram-positive organisms. The inhibition of the topoisomerases results in strand breakage of the bacterial chromosome, supercoiling, and resealing. Therefore, DNA replication and transcription is inhibited .