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Merck
CN

SML4221

Ofloxacin hydrochloride

≥98% (HPLC), powder, fluoroquinolone antibiotic

Synonym(s):

9-Fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid hydrochloride, (±)-9-Fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid hydrochloride, Ofloxacin HCl

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About This Item

Empirical Formula (Hill Notation):
C18H20FN3O4 · xHCl
CAS Number:
Molecular Weight:
361.37 (free base basis)
MDL number:
NACRES:
NA.21
Assay:
≥98% (HPLC)
Form:
powder
Quality level:
Storage condition:
desiccated
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SMILES string

O=C(O)C1=CN2C3=C(OCC2C)C(N4CCN(C)CC4)=C(F)C=C3C1=O.[xHCl]

Quality Level

assay

≥98% (HPLC)

form

powder

storage condition

desiccated

color

white to beige

solubility

H2O: 2 mg/mL, clear

storage temp.

-10 to -25°C

General description

Ofloxacinhydrochloride is a broad-spectrum fluoroquinolone antibiotic that exhibitswater solubility, whereas ofloxacin itself is only sparingly soluble in aqueoussolutions.

Application

Ofloxacin hydrochloride may be used as a standard to study theadsorption behaviour of antibiotics.

Biochem/physiol Actions

Ofloxacin kills bacteria by blocking DNA gyrase and type IV topoisomerase—critical enzymes for DNA replication and transcription—leading to cell death. Ofloxacin has 100 times higher affinity for bacterial DNA gyrase than for mammalian. It is effective against a broad array of both Gram-positive and Gram-negative bacteria, in addition to Mycoplasmas.

Disclaimer

Hygroscopic Store with desiccant

pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Acute Tox. 4 Oral

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

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Yaping Wu et al.
Journal of global antimicrobial resistance, 36, 13-25 (2023-11-29)
Mycoplasma and Ureaplasma spp. especially M. hominis, U. parvum, and U. urealyticum recognized as an important cause of urogenital infections. Sake of the presence of antibiotic resistance and a continuous rise in resistance, the treatment options are limited, and treatment
K Sato et al.
Antimicrobial agents and chemotherapy, 22(4), 548-553 (1982-10-01)
DL-8280, 9-fluoro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-2,3-dihydro-7H- pyrido-(1,2,3-de)1,4-benzoxazine-6-carboxylic acid, is a new nalidixic acid analog with a broad spectrum of antibacterial activity against gram-negative and gram-positive bacteria, including obligate anaerobes. The activity of DL-8280 against Enterobacteriaceae, Pseudomonas aeruginosa, Haemophilus influenzae, Neisseria gonorrhoeae, and Clostridium perfringens
Ab Raouf Bhat et al.
International journal of biological macromolecules, 274(Pt 1), 133011-133011 (2024-06-10)
Human serum albumin (HSA) effectively binds to compounds having different molecular weight and thus facilitates their distribution in the living organisms. Thus, the binding interactions between a potential antibacterial drug (levofloxacin) and synthesized choline based levofloxacinate conjugates with HSA have

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