Ofloxacin

Modify Date: 2025-08-20 14:04:24

Ofloxacin structure	Common Name	Ofloxacin
	CAS Number	82419-36-1	Molecular Weight	361.367
	Density	1.5±0.1 g/cm3	Boiling Point	571.5±50.0 °C at 760 mmHg
	Molecular Formula	C₁₈H₂₀FN₃O₄	Melting Point	270-2750C
	MSDS	Chinese USA	Flash Point	299.4±30.1 °C

Use of Ofloxacin

Ofloxacin is a fluoroquinolone whose primary mechanism of action is inhibition of bacterial DNA gyrase.Target: DNA gyrase Ofloxacin is a fluoroquinolone whose primary mechanism of action is inhibition of bacterial DNA gyrase. In vitro it has a broad spectrum of activity against aerobic Gram-negative and Gram-positive bacteria, although it is poorly active against anaerobes [1]. Ofloxacin, like other 4-quinolones, is unusual among front line drugs available to treat bacterial infections since it affects bacterial DNA synthesis, rather than cell wall or protein synthesis [2].Ofloxacin (20 mg/kg), norfloxacin (40 mg/kg), pefloxacin mesylate dihydrate (40 mg/kg)and ciprofloxacin (50 mg/kg) were administered by gavage twice daily for three consecutive weeks. 6 weeks after treatment, the test animals were euthanised and Achilles tendon specimens were collected. A computer monitored tensile testing machine was utilised for biomechanical testing. The mean elastic modulus of the control group was significantly higher than that of the norfloxacin and pefloxacin groups (p<0.05 and p<0.01, respectively). The mean yield force (YF) of the control group was significantly higher than those of ciprofloxacin, norfloxacin and pefloxacin groups (p<0.001, p<0.05 and p<0.01, respectively). The mean ultimate tensile force (UTF) of the control group was significantly higher than of the ciprofloxacin, norfloxacin, and pefloxacin groups (p<0.001, p<0.05 and p<0.01, respectively). Hyaline degeneration and fibre disarrangement were observed in the tendons of the ciprofloxacin, pefloxacin, and ofloxacin treated-groups, whereas myxomatous degeneration was observed only in the ciprofloxacin and pefloxacin groups [3].Clinical indications: Bacterial infection; Bacterial respiratory tract infection; Bacterial urinary tract infection Toxicity: tendinopathy; hepatotoxicity; dysglycemia

Name	ofloxacin
Synonym	More Synonyms

Description	Ofloxacin is a fluoroquinolone whose primary mechanism of action is inhibition of bacterial DNA gyrase.Target: DNA gyrase Ofloxacin is a fluoroquinolone whose primary mechanism of action is inhibition of bacterial DNA gyrase. In vitro it has a broad spectrum of activity against aerobic Gram-negative and Gram-positive bacteria, although it is poorly active against anaerobes [1]. Ofloxacin, like other 4-quinolones, is unusual among front line drugs available to treat bacterial infections since it affects bacterial DNA synthesis, rather than cell wall or protein synthesis [2].Ofloxacin (20 mg/kg), norfloxacin (40 mg/kg), pefloxacin mesylate dihydrate (40 mg/kg)and ciprofloxacin (50 mg/kg) were administered by gavage twice daily for three consecutive weeks. 6 weeks after treatment, the test animals were euthanised and Achilles tendon specimens were collected. A computer monitored tensile testing machine was utilised for biomechanical testing. The mean elastic modulus of the control group was significantly higher than that of the norfloxacin and pefloxacin groups (p<0.05 and p<0.01, respectively). The mean yield force (YF) of the control group was significantly higher than those of ciprofloxacin, norfloxacin and pefloxacin groups (p<0.001, p<0.05 and p<0.01, respectively). The mean ultimate tensile force (UTF) of the control group was significantly higher than of the ciprofloxacin, norfloxacin, and pefloxacin groups (p<0.001, p<0.05 and p<0.01, respectively). Hyaline degeneration and fibre disarrangement were observed in the tendons of the ciprofloxacin, pefloxacin, and ofloxacin treated-groups, whereas myxomatous degeneration was observed only in the ciprofloxacin and pefloxacin groups [3].Clinical indications: Bacterial infection; Bacterial respiratory tract infection; Bacterial urinary tract infection Toxicity: tendinopathy; hepatotoxicity; dysglycemia
Related Catalog	Signaling Pathways >> Anti-infection >> Bacterial Research Areas >> Infection
References	[1]. Todd PA, et al. Ofloxacin. A reappraisal of its antimicrobial activity, pharmacology and therapeutic use. Drugs. 1991 Nov;42(5):825-76. [2]. Smith JT, et al. Ofloxacin, a bactericidal antibacterial. Chemotherapy. 1991;37 Suppl 1:2-13. [3]. Olcay E, et al. Oral toxicity of pefloxacin, norfloxacin, ofloxacin and ciprofloxacin: comparison of biomechanical and histopathological effects on Achilles tendon in rats. J Toxicol Sci. 2011 Jun;36(3):339-45.

Description

Related Catalog

Signaling Pathways >> Anti-infection >> Bacterial

Research Areas >> Infection

References

[1]. Todd PA, et al. Ofloxacin. A reappraisal of its antimicrobial activity, pharmacology and therapeutic use. Drugs. 1991 Nov;42(5):825-76.

[2]. Smith JT, et al. Ofloxacin, a bactericidal antibacterial. Chemotherapy. 1991;37 Suppl 1:2-13.

[3]. Olcay E, et al. Oral toxicity of pefloxacin, norfloxacin, ofloxacin and ciprofloxacin: comparison of biomechanical and histopathological effects on Achilles tendon in rats. J Toxicol Sci. 2011 Jun;36(3):339-45.

Density	1.5±0.1 g/cm3
Boiling Point	571.5±50.0 °C at 760 mmHg
Melting Point	270-2750C
Molecular Formula	C₁₈H₂₀FN₃O₄
Molecular Weight	361.367
Flash Point	299.4±30.1 °C
Exact Mass	361.143799
PSA	75.01000
LogP	0.84
Vapour Pressure	0.0±1.7 mmHg at 25°C
Index of Refraction	1.670
Storage condition	2-8°C

Ofloxacin MSDS(Chinese)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: UU8815500

CHEMICAL NAME :: 7H-Pyrido(1,2,3-de)-1,4-benzoxazine-6-carboxylic acid, 2,3-dihydro-9-fluoro-3-methyl-10- (4-methyl-1-piperazinyl)-7-oxo-, (+-)-

CAS REGISTRY NUMBER :: 82419-36-1

LAST UPDATED :: 199806

DATA ITEMS CITED :: 28

MOLECULAR FORMULA :: C18-H20-F-N3-O4

MOLECULAR WEIGHT :: 361.41

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Human - man

DOSE/DURATION :: 17 mg/kg/3D-I

TOXIC EFFECTS :: Behavioral - excitement Blood - changes in cell count (unspecified) Skin and Appendages - dermatitis, allergic (after systemic exposure)

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Human - woman

DOSE/DURATION :: 24 mg/kg/3D-I

TOXIC EFFECTS :: Behavioral - hallucinations, distorted perceptions Behavioral - toxic psychosis Behavioral - irritability

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Human - man

DOSE/DURATION :: 51428 ug/kg

TOXIC EFFECTS :: Gastrointestinal - hypermotility, diarrhea Nutritional and Gross Metabolic - body temperature increase

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 3590 mg/kg

TOXIC EFFECTS :: Behavioral - convulsions or effect on seizure threshold Behavioral - ataxia Lungs, Thorax, or Respiration - respiratory depression

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 7070 mg/kg

TOXIC EFFECTS :: Behavioral - convulsions or effect on seizure threshold Behavioral - ataxia Lungs, Thorax, or Respiration - respiratory depression

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 273 mg/kg

TOXIC EFFECTS :: Behavioral - convulsions or effect on seizure threshold Behavioral - coma Lungs, Thorax, or Respiration - respiratory depression

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 3266 mg/kg

TOXIC EFFECTS :: Behavioral - convulsions or effect on seizure threshold

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 805 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 7690 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 208 mg/kg

TOXIC EFFECTS :: Behavioral - convulsions or effect on seizure threshold Behavioral - coma Lungs, Thorax, or Respiration - respiratory depression

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intramuscular

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: >600 mg/kg

TOXIC EFFECTS :: Behavioral - convulsions or effect on seizure threshold

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: >200 mg/kg

TOXIC EFFECTS :: Gastrointestinal - changes in structure or function of salivary glands Gastrointestinal - hypermotility, diarrhea

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: >70 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Primate - monkey

DOSE/DURATION :: 500 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 7560 mg/kg/4W-I

TOXIC EFFECTS :: Behavioral - fluid intake Kidney, Ureter, Bladder - other changes in urine composition Nutritional and Gross Metabolic - weight loss or decreased weight gain

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: 5600 mg/kg/4W-I

TOXIC EFFECTS :: Gastrointestinal - other changes Musculoskeletal - joints Nutritional and Gross Metabolic - weight loss or decreased weight gain

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 990 mg/kg

SEX/DURATION :: female 7-17 day(s) after conception

TOXIC EFFECTS :: Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus) Reproductive - Specific Developmental Abnormalities - musculoskeletal system

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 1620 mg/kg

SEX/DURATION :: female 9-10 day(s) after conception

TOXIC EFFECTS :: Reproductive - Effects on Newborn - growth statistics (e.g.%, reduced weight gain)

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 8910 mg/kg

SEX/DURATION :: female 7-17 day(s) after conception

TOXIC EFFECTS :: Reproductive - Effects on Newborn - viability index (e.g., # alive at day 4 per # born alive)

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 2080 mg/kg

SEX/DURATION :: female 6-18 day(s) after conception

TOXIC EFFECTS :: Reproductive - Effects on Embryo or Fetus - fetal death

MUTATION DATA

TYPE OF TEST :: DNA inhibition

TEST SYSTEM :: Mammal - domestic Cells - not otherwise specified

DOSE/DURATION :: 27 mg/L

REFERENCE :: AMACCQ Antimicrobial Agents and Chemotherapy. (American Soc. for Microbiology, 1913 I St., NW, Washington, DC 20006) V.1- 1972- Volume(issue)/page/year: 34,1955,1990

Personal Protective Equipment	Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
Hazard Codes	Xn, Xi
Risk Phrases	22-42/43-68-36/37/38
Safety Phrases	S26-S36/37/39-S24/25-S22
RIDADR	NONH for all modes of transport
WGK Germany	3
RTECS	UU8815550
HS Code	2934999090

Precursor 10
CAS#:109-01-3 methylpiperazine CAS#:82419-35-0 Oxygen-fluorine acid CAS#:119-91-5 biquinoline CAS#:6148-64-7 Potassium monoe...
CAS#:94695-48-4 2,3,4,5-Tetrafl... CAS#:86760-99-8 diethyl [(-)-7,... CAS#:115551-33-2 6-amino-2,3-dif... CAS#:85741-74-8 diethyl N-(3,4-...
CAS#:144298-04-4 Tert-butyln-(3,... CAS#:124409-86-5 diethyl [3,4-di...
DownStream 3
CAS#:93107-30-3 1-CYCLOPROPYL-6... CAS#:100986-85-4 Levofloxacin CAS#:100986-86-5 D-Ofloxacin

HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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7H-1,4-Oxazino[2,3,4-ij]quinoline-6-carboxylic acid, 9-fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-

9-Fluoro-3-methyl-10-(4-methylpiperazin-1-yl)-7-oxo-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid

Exocin

Floxal

(±)-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

9-fluoro-3-methyl-10-(4-methylpiperazin-1-yl)-7-oxo-2,3-dihydro-7H-1,4oxazino2,3,4-ijquinoline-6-carboxylic acid

Visren

Floxil

Ofloxacin

9-Fluoro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid

Floxin

Oflocin

hoe280

Flobacin

9-fluoro-3-methyl-10-(4-methylpiperazino)-7-oxo-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid

T666 1A M BN EV KO&&TJ DVQ HF M1 I- AT6N DNTJ D1

TARIVID

pt01

oflx

Oflox

MFCD00226105

(±)-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

OCUFLOX

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Ofloxacin

Use of Ofloxacin

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Ofloxacin Biological Activity

Chemical & Physical Properties

MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

MUTATION DATA

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