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Details

Stereochemistry ACHIRAL
Molecular Formula C9H6N2O3
Molecular Weight 190.1555
Optical Activity NONE
Defined Stereocenters 0 / 0
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of Nitroxoline

SMILES

OC1=CC=C(C2=CC=CN=C12)[N+]([O-])=O

InChI

InChIKey=RJIWZDNTCBHXAL-UHFFFAOYSA-N
InChI=1S/C9H6N2O3/c12-8-4-3-7(11(13)14)6-2-1-5-10-9(6)8/h1-5,12H

HIDE SMILES / InChI

Molecular Formula C9H6N2O3
Molecular Weight 190.1555
Charge 0
Count
MOL RATIO 1 MOL RATIO (average)
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 0
Optical Activity NONE

Description

Nitroxoline (8-hydroxy-5-nitroquinoline) has been used since 1962 in the treatment of urinary tract infections especially those due to gram negative bacilli (E. coli). Nitroxoline is active against most Gram-negative and –positive uropathogenic bacteria, against mycoplasmas (M. hominis, Ureaplasma urealyticum) and human pathogenic Candida spp. The mode of antibacterial and antifungal action is based on the ability of nitroxoline to chelate with various metallic bivalent cations. Nitroxoline is a fluorquinolone that is active against bacterial gyrases. This drug may also have antitumor activity by inhibition of type 2 methionine aminopeptidase (MetAP2) protein which is involved in angiogenesis. Nitroxoline induces apoptosis and inhibits glioma growth in vivo and in vitro. Due to the excellent anticancer activity and its well-known safety profile and pharmacokinetic properties, nitroxoline has been approved to enter into a phase II clinical trial in China for non-muscle invasive bladder cancer treatment

Originator

Approval Year

Targets

Primary TargetPharmacologyConditionPotency
55.0 nM [IC50]
1.0 µM [Ki]
271.8 µM [Ki]

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
Nibiol
Primary
Unknown

Cmax

ValueDoseCo-administeredAnalytePopulation
5.425 μg/mL
100 mg single, oral
NITROXOLINE plasma
Homo sapiens
9.5 mg/L
3 mg/kg single, oral
NITROXOLINE plasma
Homo sapiens

AUC

ValueDoseCo-administeredAnalytePopulation
5.97 μg × h/mL
100 mg single, oral
NITROXOLINE plasma
Homo sapiens

T1/2

ValueDoseCo-administeredAnalytePopulation
1.7 h
100 mg single, oral
NITROXOLINE plasma
Homo sapiens

Doses

OverviewOther

Other InhibitorOther SubstrateOther Inducer






Drug as perpetrator​

Drug as victim

Tox targets

PubMed

Sample Use Guides

In Vivo Use Guide
Nitroxoline was mainly administered for treatment of uncomplicated and complicated UTI as well as for prophylaxis of recurrent UTI with daily dosages mostly between 300 and 900 mg. The treatment duration varied mainly between 3 and 10 days depending on the indication.
Route of Administration: Oral
In Vitro Use Guide
The rate of susceptibility of E. coli at a MIC of nitroxoline of ≤8 mg/l is practically 100% and has not changed over the years as shown by a recent in vitro study with 499 strains from patients with community acquired UTI showing MIC50- and MIC90-values of 2 mg/l and 4 mg/l, respectively. For other uropathogens, such as K. pneumonia, P. mirabilis. P. vulgaris, M. morganii, and S. saprophyticus the MIC50- and MIC90-values were between 4–8/ 4–8 mg/l with highest MIC of 8 mg/l.
Substance Class Chemical
Record UNII
A8M33244M6
Record Status Validated (UNII)
Record Version