U.S. Department of Health & Human Services Divider Arrow National Institutes of Health Divider Arrow NCATS

Details

Stereochemistry RACEMIC
Molecular Formula C7H11N3O4
Molecular Weight 201.1799
Optical Activity ( + / - )
Defined Stereocenters 0 / 1
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of Misonidazole

SMILES

COCC(O)CN1C=CN=C1[N+]([O-])=O

InChI

InChIKey=OBBCSXFCDPPXOL-UHFFFAOYSA-N
InChI=1S/C7H11N3O4/c1-14-5-6(11)4-9-3-2-8-7(9)10(12)13/h2-3,6,11H,4-5H2,1H3

HIDE SMILES / InChI
Misonidazole is a nitroimidazole with radiosensitizing and antineoplastic properties. Exhibiting high electron affinity, misonidazole induces the formation of free radicals and depletes radioprotective thiols, thereby sensitizing hypoxic cells to the cytotoxic effects of ionizing radiation. This single-strand breaks in DNA induced by this agent result in the inhibition of DNA synthesis. The drug also possesses a substantial cytotoxic effect, independent of radiation, which is selectively expressed in hypoxic cells. Misonidazole may be cytotoxic to the normal hypoxic tissues in the human body, making this became a major concern in the clinical application of the drug. Misonidazole leads to strand breaks in cellular DNA and those cells which fail to survive also fail to repair these strand breaks. Misonidazole depletes intracellular glutathione and is more toxic in glutathione depleted cells.

Approval Year

TargetsConditions

Conditions

ConditionModalityTargetsHighest PhaseProduct
Diagnostic
Unknown

Approved Use

Unknown
Diagnostic
Unknown

Approved Use

Unknown
Diagnostic
Unknown

Approved Use

Unknown
Diagnostic
Unknown

Approved Use

Unknown
Cmax

Cmax

ValueDoseCo-administeredAnalytePopulation
31.3 mg/L
600 mg/m² single, oral
dose: 600 mg/m²
route of administration: Oral
experiment type: SINGLE
co-administered:
MISONIDAZOLE plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FASTED
125 mg/L
3 g/m² single, oral
dose: 3 g/m²
route of administration: Oral
experiment type: SINGLE
co-administered:
MISONIDAZOLE plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: MALE
food status: FASTED
AUC

AUC

ValueDoseCo-administeredAnalytePopulation
348.5 mg × h/L
600 mg/m² single, oral
dose: 600 mg/m²
route of administration: Oral
experiment type: SINGLE
co-administered:
MISONIDAZOLE plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FASTED
2150 mg × h/L
3 g/m² single, oral
dose: 3 g/m²
route of administration: Oral
experiment type: SINGLE
co-administered:
MISONIDAZOLE plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: MALE
food status: FASTED
T1/2

T1/2

ValueDoseCo-administeredAnalytePopulation
18 min
3 g/m² single, oral
dose: 3 g/m²
route of administration: Oral
experiment type: SINGLE
co-administered:
MISONIDAZOLE plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: MALE
food status: FASTED
Overview

Overview

CYP3A4CYP2C9CYP2D6hERG

OverviewOther

Other InhibitorOther SubstrateOther Inducer



Drug as perpetrator​Drug as victim

Drug as victim

TargetModalityActivityMetaboliteClinical evidence
yes
PubMed

PubMed

TitleDatePubMed
Fluorine-18-labeled fluoromisonidazole positron emission and computed tomography-guided intensity-modulated radiotherapy for head and neck cancer: a feasibility study.
2008-01-01
Tumor hypoxia imaging in orthotopic liver tumors and peritoneal metastasis: a comparative study featuring dynamic 18F-MISO and 124I-IAZG PET in the same study cohort.
2008-01
Hypoxia positron emission tomography imaging with 18f-fluoromisonidazole.
2007-11
Hypertabastic survival model.
2007-10-26
Interventions for preventing oral mucositis for patients with cancer receiving treatment.
2007-10-17
[Molecular design of hypoxic tumor cell-targeting drugs and imaging probes].
2007-10
Altered calcium homeostasis in motor neurons following AMPA receptor but not voltage-dependent calcium channels' activation in a genetic model of amyotrophic lateral sclerosis.
2007-10
Experimental hypoxia is a potent stimulus for radiotracer uptake in vitro: comparison of different tumor cells and primary endothelial cells.
2007-08-28
pO polarography, contrast enhanced color duplex sonography (CDS), [18F] fluoromisonidazole and [18F] fluorodeoxyglucose positron emission tomography: validated methods for the evaluation of therapy-relevant tumor oxygenation or only bricks in the puzzle of tumor hypoxia?
2007-06-28
In vivo 19F magnetic resonance spectroscopy and chemical shift imaging of tri-fluoro-nitroimidazole as a potential hypoxia reporter in solid tumors.
2007-06-15
A model of reoxygenation dynamics of head-and-neck tumors based on serial 18F-fluoromisonidazole positron emission tomography investigations.
2007-06-01
Canadian recommendations for the treatment of glioblastoma multiforme.
2007-06
Hypoxia-imaging with (18)F-Misonidazole and PET: changes of kinetics during radiotherapy of head-and-neck cancer.
2007-06
In vivo molecular imaging biomarkers: clinical pharmacology's new "PET"?
2007-06
A robotic synthesis of [18F]fluoromisonidazole ([18F]FMISO).
2007-06
Hypoxia dose painting by numbers: a planning study.
2007-05-01
The influence of tumor oxygenation on hypoxia imaging in murine squamous cell carcinoma using [64Cu]Cu-ATSM or [18F]Fluoromisonidazole positron emission tomography.
2007-04
Imaging of brain hypoxia in permanent and temporary middle cerebral artery occlusion in the rat using 18F-fluoromisonidazole and positron emission tomography: a pilot study.
2007-04
Whole brain radiotherapy for brain metastases from breast cancer: estimation of survival using two stratification systems.
2007-03-26
Imaging tumoral hypoxia: oxygen concentrations and beyond.
2007-03
Motexafin gadolinium injection for the treatment of brain metastases in patients with non-small cell lung cancer.
2007
Lack of correlation of hypoxic cell fraction and angiogenesis with glucose metabolic rate in non-small cell lung cancer assessed by 18F-Fluoromisonidazole and 18F-FDG PET.
2006-12
FDG--a marker of tumour hypoxia? A comparison with [18F]fluoromisonidazole and pO2-polarography in metastatic head and neck cancer.
2006-12
A model to simulate tumour oxygenation and dynamic [18F]-Fmiso PET data.
2006-11-21
PET imaging of tumour hypoxia.
2006-10-31
From anatomical to biological target volumes: the role of PET in radiation treatment planning.
2006-10-31
Tumor hypoxia imaging with [F-18] fluoromisonidazole positron emission tomography in head and neck cancer.
2006-09-15
Tumor hypoxia imaging.
2006-09-15
Combined uptake of [18F]FDG and [18F]FMISO correlates with radiation therapy outcome in head-and-neck cancer patients.
2006-08
Imaging hypoxia after oxygenation-modification: comparing [18F]FMISO autoradiography with pimonidazole immunohistochemistry in human xenograft tumors.
2006-08
Characterization of fluoromisonidazole binding in stroke.
2006-07
Ionizing radiation antagonizes tumor hypoxia induced by antiangiogenic treatment.
2006-06-01
Radiosensitizers in cervical cancer. Cisplatin and beyond.
2006-05-08
Prognostic significance of [18F]-misonidazole positron emission tomography-detected tumor hypoxia in patients with advanced head and neck cancer randomly assigned to chemoradiation with or without tirapazamine: a substudy of Trans-Tasman Radiation Oncology Group Study 98.02.
2006-05-01
Evaluation of hypoxic cell radio-sensitizers in terms of radio-sensitizing and repair-inhibiting potential. Dependency on p53 status of tumor cells and the effects on intratumor quiescent cells.
2006-04-20
Interventions for preventing oral mucositis for patients with cancer receiving treatment.
2006-04-19
[18F] fluoromisonidazole and [18F] fluorodeoxyglucose positron emission tomography in response evaluation after chemo-/radiotherapy of non-small-cell lung cancer: a feasibility study.
2006-03-04
Establishment and characterization of multicellular spheroids from a human glioma cell line; Implications for tumor therapy.
2006-03-02
Correlation of hypoxic cell fraction and angiogenesis with glucose metabolic rate in gliomas using 18F-fluoromisonidazole, 18F-FDG PET, and immunohistochemical studies.
2006-03
NanoPET imaging of [(18)F]fluoromisonidazole uptake in experimental mouse tumours.
2006-03
A meta-analysis of hyperfractionated and accelerated radiotherapy and combined chemotherapy and radiotherapy regimens in unresected locally advanced squamous cell carcinoma of the head and neck.
2006-01-31
Potentiation of the cytotoxicity of the anticancer agent tirapazamine by benzotriazine N-oxides: the role of redox equilibria.
2006-01-11
Animal-specific positioning molds for registration of repeat imaging studies: comparative microPET imaging of F18-labeled fluoro-deoxyglucose and fluoro-misonidazole in rodent tumors.
2006-01
CNS progenitor cells and oligodendrocytes are targets of chemotherapeutic agents in vitro and in vivo.
2006
Kinetic analysis of dynamic 18F-fluoromisonidazole PET correlates with radiation treatment outcome in head-and-neck cancer.
2005-12-01
Fully automated synthesis of [18F]fluoromisonidazole using a conventional [18F]FDG module.
2005-11
Measurement of tumor hypoxia in spontaneous canine sarcomas.
2005-10-19
Iodinated nitroimidazoles as radiosensitizers.
2005-09-15
Effects on tumour microcirculation in mice of misonidazole and tumour necrosis factor plus hyperthermia.
1992-01
Evaluation of a new 2-nitroimidazole nucleoside analogue, RK-28 as a radiosensitizer for clinical use.
1991-01
Patents

Sample Use Guides

Pelvic malignant disease: Oral Misonidazole at a dose of 4 gm/m2 was administered 4-6 hr prior to radiation (total dose 12 g/m2).
Route of Administration: Oral
In Vitro Use Guide
V-79 hamster cells, attached to permanox dishes, were gassed with known concentrations of oxygen (less than 10 to 200,000 ppm) and treated with 1 and 5 mM MISO for 4 h previous to exposure to the chemotherapy agent, melphalan.
Name Type Language
Misonidazole
INN   MART.   USAN   WHO-DD  
INN   USAN  
Official Name English
NSC-261,037
Preferred Name English
RO 7-0582
Code English
RO-70582
Code English
1H-IMIDAZOLE-1-ETHANOL, .ALPHA.-(METHOXYMETHYL)-2-NITRO-
Systematic Name English
RO-07-0582
Code English
Misonidazole [WHO-DD]
Common Name English
NSC-261037
Code English
?-(Methoxymethyl)-2-nitroimidazole-1-ethanol
Systematic Name English
MISONIDAZOLE [USAN]
Common Name English
misonidazole [INN]
Common Name English
RO 07-0582
Code English
Misonidazole [MART.]
Common Name English
RO-7-0582
Code English
Classification Tree Code System Code
NCI_THESAURUS C798
Created by admin on Mon Mar 31 18:39:17 GMT 2025 , Edited by admin on Mon Mar 31 18:39:17 GMT 2025
Code System Code Type Description
FDA UNII
8FE7LTN8XE
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PRIMARY
NCI_THESAURUS
C657
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PRIMARY
PUBCHEM
26105
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PRIMARY
SMS_ID
100000080648
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PRIMARY
EPA CompTox
DTXSID80864420
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PRIMARY
DRUG BANK
DB11716
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PRIMARY
CAS
13551-87-6
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PRIMARY
ECHA (EC/EINECS)
236-931-6
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PRIMARY
MESH
D008920
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PRIMARY
ChEMBL
CHEMBL42161
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PRIMARY
NSC
261037
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PRIMARY
INN
4317
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PRIMARY
EVMPD
SUB08997MIG
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PRIMARY
WIKIPEDIA
MISONIDAZOLE
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PRIMARY